Tire Retreading Research Articles

Workload analysis using energy expenditure and the work posture evaluation approach with brief method at PT XYZ

Abstract PT XYZ is a company operating in the tire retreading sector on JL. Medan-Banda Aceh, Cot Seurani Village, Muara Batu District, Aceh Utara. Retreading truck tires is carried out through several processes such as inspection, grating, repairing, gluing tire, installing tire treads, installing wheels and rings, cooking tires and finishing. The vulcanization process which is carried out manually and repeatedly makes workers easily fatigued, making them vulnerable to injury and the risk of Musculoskeletal Disorders (MSDs). This research aims to calculate the workload of PT XYZ workers. PT XYZ to determine the level of worker fatigue using the Energy Expenditure approach and assessing worker work posture using the BRIEF method to assess work postures that cause complaints of pain in workers’ body parts. Researchers measured the resting pulse and working pulse of 8 workers, then classified the Cardiovascular Load (%CVL) and Energy Expenditure workload levels of the workers and assessed work posture using the BRIEF worksheet. The results of calculating the worker’s workload obtained an average %CVL value of 57.92%, the average result of the worker’s Energy Expenditure was 6,8048 Kcal/8 hours with very heavy work criteria. The average BRIEF work posture value is 3.28 in the high risk category. The suggestions given regarding the problem of workers who easily experience fatigue, high workloads and unergonomic work postures are to increase the number of workers, add benchrest jacks at each work station, add a table with wheels and rings and add chairs for finishing workers, lighten the work and reduce excessive bending activities for tire retreading workers.

Verification of the mechanical behavior of concrete with partial replacement of the fiber resulting from tire retreading

This study investigates the mechanical behavior of concrete with partial replacement of tire retread fibers, aiming to assess their suitability as a sustainable alternative in concrete production. Through a comprehensive analysis of mechanical properties, the research sheds light on the viability of integrating tire retread fibers into concrete mixtures. Key findings include the reduction in specific mass due to increased porosity with higher fiber content, emphasizing the importance of optimizing this property. Additionally, the study observes decreased compressive strength over time, highlighting the need for understanding concrete performance changes. While tensile strength peaks at 15% replacement, further investigation is warranted to ascertain long-term trends. Furthermore, the absorption by capillarity test reveals that fiber pores mitigate water absorption, offering potential for enhancing concrete properties and reducing structural weight. These insights inform construction professionals, researchers, and policymakers striving to advance sustainable practices in the construction sector.

A Machine Learning–Based Tire Life Prediction Framework for Increasing Life of Commercial Vehicle Tires

Abstract In the commercial freight industry, tire retreading decisions are often conservative due to limited knowledge of a tire’s remaining service life. This practice leads to increased costs and material waste. This paper proposes a machine learning–based approach for estimating tire casing life and retreadability, focusing on usage data rather than wear information. This approach could extend the tire’s lifespan and reduce landfill waste. Data integration from diverse tire casing measurement sources presents challenges, including imbalanced removal data. Our methodology addresses these challenges by using historical inspection, telematics, and finite element modeling (FEM) datasets. We introduce “Tire Casing Energy” as a comprehensive usage input and apply a Variance-Reduction Synthetic Minority Oversampling Technique (VR-SMOTE) for data imbalance rectification. A random forest model is used to estimate the state of the tire casing and the casing removal probability, with Bayesian optimization applied for hyperparameter tuning, enhancing model accuracy. The proposed prediction framework is able to differentiate different truck fleets and tire locations based on their usage parameters. With the aid of this machine learning model, the importance and sensitivity of different tire usage parameters can be obtained, which is beneficial to maximize tire life.

Identification of the potential environmental loads of waste tire treatment in China from the life cycle perspective

Identifying the potential environmental loads in waste tire treatment is helpful for mitigating environmental risk. This study is trying to develop an integrated model based on such methodologies as consumption and use approach (CUM), material flow analysis (MFA), and life cycle assessment (LCA). Results indicate that waste tire generation presented continuous growth in China. Heavy-duty trucks are the dominant source of waste tire streams. Currently, the recycling rate of waste tires in China is merely 47.07%. There are five recycling pathways for waste tires, which can be classified as reclaimed rubber production (RRP), rubber powder production (RPP), pyrolysis (PRS), tire retreading (TR), and prototype utilization (PU). The overall environmental loads based on the available recycling stream show that RRP is the dominant recycling technology. Electricity consumption generally dominated the energy input of recycling process. Therefore, transforming to more clean energy mix may be an effective way to mitigate environmental loads.

Barriers to circular supply chain: the case of unorganized tire retreading in India

PurposeTo understand the role of the unorganized sector in the push toward a circular economy (CE), the authors consider the case of the unorganized tire retreading industry in India and examine the barriers it faces in contributing to a circular tire supply chain in India.Design/methodology/approachThe authors used grounded theory methodology (GTM) to understand the barriers to realizing the CE in the Indian unorganized tire retreading industry. This methodology facilitates the acquisition of new insights into an existing phenomenon or in studying emerging areas that require investigation.FindingsThrough the analysis, the authors tease out ten critical barriers that impede the Indian unorganized tire retreading industry. The two most vital barriers are the lack of effective promotional methods and the poor implementation of standards.Research limitations/implicationsThis study emphasizes the importance of further investigating the potential role of the unorganized sector in fostering the transition to a CE in emerging economies.Practical implicationsThe research provides useful policy prescriptions to regulators and insights to original tire manufacturers (OTMs) that enable the unorganized tire retreaders in India to contribute to the movement toward a circular supply chain (CSC).Originality/valueThis study is the first to systematically examine the unorganized sector to understand the barriers to CE. This study provides an original theoretical contribution by expanding the scope of stakeholder and institutional theories.

Diagnostics in Tire Retreading Based on Classification with Fuzzy Inference System

Currently, there are tire retreading companies whose evaluations are not wholly accurate; due to various factors, sometimes customers are forced to agree to what is decided, and this means that the customer can sometimes pay for services that do not necessarily guarantee the correct operation of the tire or, failing that, shorten its life. This work aims to develop a tire diagnostic system that allows for evaluating a tire’s faults and can thus be more precise when determining if it needs retreading or a change process. The diagnostic system is focused on demonstrating that fuzzy logic can be applied in diagnosing the condition of tires. The methodology consisted of determining the variables to be considered in the evaluation of tires, such as blowing out, flange breakage, band failure, and patching, then applying fuzzy logic. Subsequently, the execution tests of the built diagnostic software were carried out for its validation in a case study of a tire retreading company. The result was a margin of error of 1.6% accuracy versus 5.6% from the operator experience. The conclusion was that fuzzy logic could be applied correctly in the field of tire retreading, providing substantial savings in time and resources for related companies, as well as giving customers confidence since, by using more accurate results, the diagnostic system will make the tire evaluation efficient.

Optimization of Tire Production Planning Using The Goal Programming Method and Sensitivity Analysis

In Indonesia there are many companies that are engaged in tire retreading or reuse of unused used tires. One of the problems in the retread business in Indonesia is that the tire production target is often not fulfilled and the lack of available tires is used as the main raw material for retreading due to the long process of sending tires from consumers to companies. The purpose of this study is to determine the optimal needs of resources, determine the priority of achievement and determine the value of sensitivity to the optimum solution achieved. The method used in this study is the Goal Programming Method, because it is suitable for problems that have many goals because through its deviation, the method can automatically capture information about the relative achievement of the goals to be achieved. Based on the results of research that has been done, it can be concluded that the maximum income earned by the company is IDR 474,426,000 or an increase of 36% from the limit set by the company. In addition, it can also be concluded that the sensitivity range for the boundary quantity value is the distance at which the shadow price remains valid. If it increases above the upper limit of sensitivity (increases) or decreases below the lower limit (decreases), the value of the shadow price will change.

HF01-22 REV YOUR ENGINES: HOW AN AUTO WORKER BROUGHT HOPE TO THOSE WITH ERECTILE DYSFUNCTION

You have accessJournal of UrologyCME1 May 2022HF01-22 REV YOUR ENGINES: HOW AN AUTO WORKER BROUGHT HOPE TO THOSE WITH ERECTILE DYSFUNCTION William Du Comb, Steven Allegro, Esther Liu, and Joshua Palka William Du CombWilliam Du Comb More articles by this author , Steven AllegroSteven Allegro More articles by this author , Esther LiuEsther Liu More articles by this author , and Joshua PalkaJoshua Palka More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000002541.22AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: To present the history of vacuum therapy for erectile dysfunction (ED) and to describe its influence on future treatment modalities for a condition that was once deemed incurable. METHODS: Literature review via PubMed was implemented to gain access to journal articles, texts and personal histories detailing the conceptualization, implementation, and success of vacuum constriction devices (VCD) for ED. RESULTS: References to ED date back to Greek and Roman antiquity. Throughout time, management for ED has advanced from aphrodisiacs and herbal remedies to current sophisticated diagnostic evaluations and treatment. Here we discuss the history and impact of the first FDA approved treatment for ED, the VCD.The first mention of VCD use dates to 1874. Dr. John King described a “glass exhauster” which was placed over the penis for daily vacuum therapy. In 1917, Dr. Otto Lederer of Austria was issued a patent for a VCD; however, his results were never published in the medical literature and no commercial products were made available. The modern-day iteration of the VCD can be credited to an auto worker from South Carolina, Geddings Osbon. Mr. Osbon was told by his physician that ED was an unfortunate and untreatable consequence of aging. Geddings refused to accept this, and using his knowledge of vacuum physics and mechanics from tire retreading, he developed a prototype for a VCD in 1960. In 1974, he founded the Youth Equivalent Company, Inc. to manufacture and distribute his VCD, which he called the “Youth Equivalent Device.” With the support of Dr. Henry Hudson, the president of the Southeastern Section of the American Urological Association (AUA), the device gained legitimacy and traction within the medical community. The first clinical study investigating the device was led by Dr. Perry Nadig at the Metropolitan Medical Center in San Antonio in 1982. On October 5, 1982, nearly 20 years after being told there was no treatment for his ED, the FDA granted Geddings Osbon approval for his VCD. The VCD was adopted into the AUA ED guidelines in 1995 and it remained first line for non-invasive treatment of ED until the introduction of Sildenafil in 1998. CONCLUSIONS: Vacuum therapy for ED dates as far back as the 19th century. Research shows that this treatment modality has high patient and partner overall satisfaction. For the properly selected patient, it remains an effective treatment option with a storied past. Source of Funding: None © 2022 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 207Issue Supplement 5May 2022Page: e219 Advertisement Copyright & Permissions© 2022 by American Urological Association Education and Research, Inc.MetricsAuthor Information William Du Comb More articles by this author Steven Allegro More articles by this author Esther Liu More articles by this author Joshua Palka More articles by this author Expand All Advertisement PDF DownloadLoading ...

Measurement of Human Work Reliability Using Systematic Human Error Reduction and Prediction Approach and Human Error Assessment and Reduction Technique Method

CV. Raja Hati is a company that is engaged in the process of refinishing tires that have been bald into new ones. The tire retreading process has a relatively high percentage of defects, such as 14.8% Printing Process, 12.3% Surface Leveling, 8.6% Tire Curing, and so on. The problems in this study are the factors that cause defects in terms of human aspects, the types of errors that most often occur in the production process, and the value of human error probability (HEP) in the production process at CV. Raja Hati. This study aims to determine the factors that cause defects in terms of human aspects, the types of errors that most often occur in the production process and the value of human error probability (HEP) in the production process. The research was conducted using the SHERPA and HEART methods. The SHERPA method’s study results show that the types of errors that often occur in the tire retreading process are many wrong operator actions. Still, on the proper object (A7), the operator is wrong in dividing the time in doing work (A2), and the operator is not suitable for doing his job (A5). This study concludes that the factors that cause product defects in the tire retreading process are the absence of a procedure for correcting errors by 21.63%, the need for different techniques in doing work to facilitate operators by 27.04%, inexperienced operators by 12.36%, and inexperience and independent inspection has a percentage of 12.36%. The results of the calculation of the HEP value show that the average HEP value in the tire retreading process is 0.8552 or 85.52%, while the operator reliability value is 14.48%.

ANALYSIS OF WATER PERFORMANCE OF COATING MORTARS INCORPORATED WITH TIRE RUBBER

This paper analyzed the behavior of mixed mortars incorporated with rubber from the tire retreading process, based on partial sand substitution. The content of rubber incorporation in the mortars was 5%, 10%, 15%, and 20% by volume. The different granulometries of rubber were denominated as thick (passed through a sieve # 1.19 mm) and fine (passed through a sieve # 0.60 mm). Tests were performed to evaluate water retention, capillary absorption, drying, immersion absorption, water vapor permeability, and permeability to water under pressure. The results showed that the fine rubber was distinguished by its higher retention of water at the contents of 15% and 20%, lower absorption via both capillary and immersion, higher drying capacity, higher permeability to water vapor, and lower permeability to water under pressure.

Comparing Between Production Scheduling Methods to Achieve Efficient Resource Utilization

High competition among industries nowadays, requires companies to improve their production services. The speed of production service time, with excellent quality, becomes part of the company’s competitive advantage. This study aims to compare several production scheduling methods which are commonly used, so that efficient resource utilization can be obtained. Production Scheduling Methods such as Make to Order, Dannenbring, Branch and Bound, Nawaz Enscore and Ham and Campbell Dudeck Smith were compared using one case of tire retreading production. There were two jobs: tire retreading for truck and bus. Each job, assigned to ten workstations following its production steps. The results were obtained that Dannenbring and Campbell Dudeck Smith gave the same best results with the smallest makespan value, equivalent to 48% efficiency.

The Use of Crumb Rubber as Modified Bitumen for Crack Filling at Deteriorated Pavement

Crumb rubber is tire retreading waste which is classified as a hazardous material because it can pollute the environment. In an effort to create an environment free of pollution, one of the efforts is to reuse it as building material. In this research, crumb rubber will be used to modify the 60/70 penetration bitumen to have a better performance as crack filler on roads that are damaged in the form of cracks. As crack filler the material must have resistance to softening at high pavement temperatures during the day. In this study, crack filler was examined in the form of penetrating asphalt with the addition of additives, namely Crumb Rubber. The result parameters are based on ASTM D5078 standards and testing procedures based on ASTM D5329, where tests include softening point, cone penetration, resilience and asphalt compatibility testing. The results show that the addition of 27 % CR to 60/70 penetration asphalt can increase the hardness of the asphalt, the softening point value, the resilience or recovery value which means reduced vulnerability to temperature.

Analisis Kelayakan Pembangunan Fasilitas Vulkanisir Ban Pesawat Terbang Di Indonesia Dan Strategi Pengembangannya

Airplane tire retreading is the process of reconditioning an airplane tire layer after several take- offs and landing times. Airplane tire retreading can be done between 3-5 times depending on the wear rate of the tire layers.The total number of aircraft operating in Indonesia is 1259 according to data from the DKPPU, and data from INACA 'Indonesia Aviation Outlook 2017' the number of Wide Body jets is 36 and Narrow Body is 414. From these data, the tires with the largest population and the same size is the aircraft tires B737-800/900/ER and A320-200/300 with the number of tires on the Nose Landing Gear/NLG are 806 EA and in the Main Landing Gear/MLG are 1612 EA. The available information states that the need for retreading tires for all Jet aircraft in Indonesia is around USD 13 million per year. About 80% or around USD 10.4 million per year is spending on retreading aircraft tires for B737-800/900/ER and A320- 200/300.This figure is a big opportunity for Indonesia MRO However, MRO (Maintenance Repair & Overhaul) Indonesia cannot take this opportunity because it still does not have the ability to retread airplane tires. For this reason, the authors conducted a feasibility analysis for the construction of aircraft tire retreading facilities for the B737-800/900/ER and A320-200/300 aircraft in Indonesia and conducted a strategic analysis necessary for the construction of the tire retreading facility to be successful. From the feasibility calculation, it is obtained 29.6% ROI (Return On Investment) and 4.8 year PBP (Pay Back Period) shows that the construction of the B737-800/900/ER and A320-200/300 aircraft tire retreading facilities is very feasible. Several strategies to achieve this are collaborating with Original Equipment Manufacturer/ OEM, seeking strategic partners, asking for support from the Government (the Ministry of Industry) by submitting the tire retreading facility development to the Aerospace Industry Roadmap.

Fatigue crack growth characterization of re-treaded tire rubber

Tire re-treading is a re-manufacturing process to tread on tire’s casing. The performance of the re-treaded tire is studied with the qualitative and quantitative research process. From safety point of view, it is very cruical to establish some standard on retreaded tires there are several causes of tire tread failure and no standards are currently in existance therefore the motivation behind this research is to establish a model for fatigue crack growth rate (CGR) prediction for retreaded tire rubber. The progressive simulation model is built to explore the relationship between tearing energy and CGR of the specimen in retreaded tire rubber. An analytical approach is used to check that retreaded tires obey the power-law between tearing energy and fatigue crack growth rate. Testing of the tire rubber specimen from belt edge area is performed for different strains rates. The De Mattia fatigue tester system is used to test the rate of crack growth in a relaxed state in rubber specimens (R = 0).Large volume of data is gathered through testing and regression analysis is done to get the value of the coefficient of determination (R 2 ).This proves that there is a strong correlation between tearing energy and CGR .Results of SPSS simulation also agree with the experimental testing results with less than five percent deviation .CGR in retreaded tire rubber compared with CGR in new tire rubber shows CGRin retreaded titr rubber is significantly higher than that in new tire rubber.Tearing energy decreases moderately however crack grows fast.The findings of this research can be used to improve the quality of the product by small tire retreaders and also useful to policy makers.

Computer simulation of hyper elastic re-treaded tire rubber with ABAQUS

Tire re-treading is a re-manufacturing process to tread on casing tires. The performance of the re-treaded tire is studied with qualitative and quantitative research process. Since re-treaded tire rubber reveals some special properties like hyper elasticity, it is a very challenging task to simulate the actual performance of the retreaded tire rubber. In this paper, the simulation of hyper elastic property of re-treaded tire rubber is successfully completed with the help of finite element (FEM). Material specimens are taken from belt edge area of the retreaded truck tire. To evaluate the coefficient of hyper elastic strain energy function, uniaxial and planar tension test are conducted. The measured outcomes are compared and only stable model are selected. Yeoh and Arruda-Boyce models were stable. A case study of different size specimen and at different strain are performed where rubber specimen is taken from same belt edge area. The graphs are plotted from the .odb file between stress and deformation of retreaded tire rubber. The same graphs are validated with the lab tested readings. To explore the relation between stress and specimen deformation, a progressive simulation model has been developed. Statistical methods are used to validate the research question; Does hyper elasticity of retreaded tire impact its behavioral quality? Regression analysis is conducted to find out the correlations between stress and deformation of rubber specimen. The value of coefficient of determination (R2) is very close to (1) so it is proved that there is correlation between them. Results obtained are promising to predict the behavior of re-treaded tire rubber. The findings can be used to improve the product and its utility in small tire re-treaders, customers and policymakers.

Evaluation of costs and reworks in the tires recovery process by the Monte Carlo Method: case study

Companies are increasingly seeking methods to eliminate costs, and one of the big problems in companies is rework. The objective of this study was to identify costs and rework through the application of quality tools, allied to the Monte Carlo method (MMC), comprising the productive process of tire retreading, through an exploratory study. The applied methodology was in a tire retreading industry, located in the southern Fluminense region, in the state of Rio de Janeiro. One can conclude from the use of quality tools that the main failures within the process were the vulcanization, bonding and scarification / repair and also analyze by the Monte Carlo method the costs presented in the tire reform process through 5000 interactions. Through the tools, we can quantify the failures occurred in each stage. The main contribution of this work is the identification of the costs caused by the rework in the tires of automobiles and of load.

Review Facility Development of Aircraft Tire Retreading in Indonesia

Aircraft tire retread is the process of retreading or reconditioning aircraft tires after being used several times for take off and landing. Retreading an aircraft tire can be done many times, which is between 3-5 times depending on the level of wear of the tire layer. Data from INACA ‘Indonesia AviationOutlook 2017’ shows that the number of jet aircraft owned by Indonesian airlines for Wide Body is 23 aircraft and Narrow Body is 338 aircraft. Where the number of aircraft tyre in the Nose Landing Gear / NLG and Main Landing Gear / MLG Wide Body aircraft are 55 EA and 216 EA respectively, while for Narrow Body aircraft each is 352 EA and 1488 EA. The available information states that tire retreading needs in Indonesia are around USD 20 million per year. There is a huge opportunity in the need for retreading aircraft tires owned by Indonesian airlines, which is around USD 20 million per year, with 10% growth per year, so the next 5 years will reach around USD 30 million. However, this opportunity cannot be taken by MRO Indonesia because MRO Indonesia does not have the ability to retread airplane tires. The cause of the inability to take up an aircraft tire retreading business opportunity is partly because there is no government policy support to encourage aircraft tire manufacturers to collaborate with Indonesian investors to build a tire retread facility, there is business competition with aircraft tire retreading in Malaysia and Thailand, businesses most only think solely of big profits, and the unattractive business climate in Indonesia such as complicated licensing, inefficient supply chains and incentives provided are less attractive. The steps needed to capture the opportunity to retread aircraft tires are to carry out continuous campaigns and incorporate aircraft tire retread facilities development programs into the National Strategic Program and the Aerospace Industry Roadmap.

Rendimiento de compuestos de yeso que incorporan partículas de neumáticos de goma

Gypsum is the oldest synthetic construction material that is known, however it is a material about which there is little knowledge at the level of research, and in this work its study took place by making composites with the incorporation of rubber tires, aiming to obtain an alternative construction material. Thus, the objective was to investigate gypsum-based composites, with a mass incorporation of 5, 10, and 15% of two grades of vulcanized rubber residue from tire retreading processes. The granulometries are referred to as thin (sieve pass-through #0.60 mm) and thick (sieve pass-through #1.19 mm). The composites were investigated in terms of consistency (mini-slump), mass density, water absorption, surface hardness, flexural strength, compressive strength, scanning electron microscopy (SEM), and thermal behavior. The results revealed that rubber incorporation can be attractive in gypsum composites: in which the consistency decreased with the increase of the rubber content and the thick rubber granulometry favored the workability of the composites; the mass density was reduced, mainly with thin granulometry, as the rubber content in the composites increased; the water absorption showed that the high levels of rubber favor the penetration of water in the composites, regardless of the granulometry; the surface hardness showed reduced impact energy provided by the composite with 10% thin rubber; in both flexural strength and compression, the composite with 5% thin rubber showed a similar result to the control composite, while composites with 15% rubber suffered a gradual drop of up to 60 and 40%, respectively; with SEM it was observed that the thin rubber composites had smaller pores, in addition to more effective adhesion between the rubber particles; finally the rubber helps to reduce the thermal amplitudes during the day, mainly with the increase of the particle size and the rubber content .

Discussion on Tire Retreading and Reuse Technology

China has basic state policies of developing circular economy and promoting the reuse of waste materials. They are also regarded as important guarantees for the sustainable development of mankind. The recycling of used tire resources has gradually become a consensus among people as a sunrise industry. Countries all over the world attach great importance to the retreading and reuse of used tires, especially in developed countries who have taken used tires as an important industry to save rubber resources. Tire retreading is a way of recycling resources, which can save rubber raw materials, solve the environmental pollution of waste tires, and make full use of the value of tires. There is no ‘three-waste’ emission during prevulcanization retreading of used tires. It is a green environmental protection industry, which not only can save a lot of rubber, steel wire, petroleum energy and other resources, but also can realize the reduction, reuse and recycling of used tires. Tire retreading is an active way to recycle used tires, it is regarded as extension and processing reuse of the tire industry. They are of positive significance for promoting the comprehensive utilization of resource conservation, transformation of economic growth mode and sustainable development. The characteristics, technological process of tire retreading technology, current situation and development trend of retreading tire are discussed comprehensively in the paper.

Effect of Tackifier Addition on Cushion Compound Formulation for Tire Retreading Application

Tire retreading is a prospective industry. Old tires are repaired and retreaded with suitable tread compounds to fulfill the requirement as the new ones. One of the important components in tire retreading process is cushion compound. Cushion compound consists of unsaturated rubber, in this case natural rubber Hevea brasiliensis was used, less phr of filler compared to the retread compound, and additives such as peptizer, tackifier, processing oil, antioxidant, activator, accelerator and curatives. Tackifier is an important component in cushion compound since its role to make a bonding between different layer, the initial tire after buffing and new retread layer. Tackifier should has good resistance, good compatibility and does not affect the rheological and dynamical properties of bonded rubber. The general tackifier that used in industries are hexamethyl tetramine as methylene donor and resorcinol as methylene acceptor. There is certain reaction between those two additives that determine how good the performance of cushion compound and its effect to retreading process. To obtain optimum reaction, comparison between resorcinol and hexamethyl tetramine were varied as 1:1 (FRR1), 1:2 (FRR2) and 1:3 (FRR3). Hardness test, compression test, rebound resilience, tensile and tear strength, and FTIR were done to observe the optimum variation for retread application. Compared to the control with no tackifier at all, FRR2 showed the optimum result with 21.75 MPa (min. 19 Mpa) and 454,54% elongation at break (min. 450%). The most interesting result was observation by using FTIR, it was detected that the crosslink density was significantly higher than other formulation. It is a new breakthrough which is minimum tackifier with certain treatment could give better performance.