• Product name
• Appearance drawing
• Chemical composition
• Complex carrier
• Features and Applications

• First MBT(M)-75
• 
• Chemical composition 2-Mercaptobenzothiazole
• Complex carrier EPDM/SBR
• Features and Applications MBT-75 is a primary accelerator for natural and synthetic rubber with fast vulcanization speed, low vulcanization temperature(125 °C) and broad vulcanization plateau. It can be used as an anti-scorching agent in low vulcanization system and as a vulcanization retarder for CR compounds. It also plays the role of plasticizing and softening raw rubber.
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• First ZMBT(MZ)-80
• 
• Chemical composition Zinc 2-mercaptobenzothiazole
• Complex carrier EPDM/SBR
• Features and Applications High speed vulcanization accelerator for natural rubber and synthetic rubber, ZMBT-80 is easily dispersed and yields non-staining and non-discoloring products.MZ has the similar performance to M and the critical vulcanization temperature is 138 °C. Has excellent scorch resistance, safe processing, broad vulcanization plateau and not easy to produce early vulcanization.
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• First MBTS(DM)-75
• 
• Chemical composition Mercaptobenzothiazole disulfide
• Complex carrier EPDM/SBR
• Features and Applications Primary accelerator for natural rubber,synthetic rubber and reclaimed rubber.MBTS-75 is with good flatness,medium curing speed,significant latency and safe processing.
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• First MDB-75
• 
• Chemical composition 2-(4'-Morpholinodithio) benzothiazole
• Complex carrier EPDM/SBR
• Features and Applications MDB-75 is a post-effects accelerator and curing agent for natural and synthetic rubber.As an accelerator,its performance in NR and SBR is similar to that of CZ. As a curing agent, MDB is similar to TMTD in usage while has better anti-scorching performance.It is recommended to be used with a small amount of Thiuram or Dithiocarbamate accelerator due to MDB is with low vulcanization speed when used alone.
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• First DPG(D)-80
• 
• Chemical composition Diphenyl guanidine
• Complex carrier EPDM/SBR
• Features and Applications Medium speed accelerator used in natural rubber and synthetic rubber.DPG-80 has no accelerating and curing effect on IIR and EPDM and acts as a plasticizer and plastic-decomposing agent in CR.The critical vulcanization temperature is 141 °C. DPG-80 is with poor vulcanization flatness,slow vulcanization speed and good rubber safety. The aging resistance of its vulcanized rubber is poor when used alone and need to add antioxidant agent. DPG-80 is commonly used as an activator for thiazole, sulphenmides and thiuram and can be used for continuous vulcanization purpose when used along with DM and TMTD.
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• First DOTG-75
• 
• Chemical composition Diorthotolyl guanidine
• Complex carrier EPDM/SBR/AEM
• Features and Applications Activator and accelerator for natural rubber and synthetic rubber.DOTG-75 is very similar to D(diphenyl guanidine).Its activity is very low at operating temperature and operation is very safe.The critical temperature of DPG-80 is 141 °C and it’s very active at or above critical temperature.DPG-80 is also an important activator for accelerator of thiazoles, thiurams, and sulphenamides. It is a super accelerator when used with accelerator M and often used with HMDC in vulcanization systems with acrylate, polyurethane and others.
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• First TBBS(NS)-80
• 
• Chemical composition N-Tertiarybutyl-2-benzothiazole sulfenamide
• Complex carrier EPDM/SBR
• Features and Applications TBBS-80 is a post-effect accelerator for natural rubber,synthetic rubber and reclaimed rubber.It can increase the use ratio of synthetic rubber due to its safe operating temperature,good anti-scorching performance and fast curing rate, .It does not produce nitrosamine carcinogens during vulcanization. TBBS is an ideal alternative to NOBS and has excellent comprehensive performance.It can be combined with accelerators of Thiuram, guanidine, and aldoamine to increase activity,and form a good vulcanization system when used with anti-scorching agent PVI.It been regarded as a standard accelerator.
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• First CBS(CZ)-80
• 
• Chemical composition N-Cyclohexyl-2-benzothiazole sulfenamide
• Complex carrier EPDM/SBR
• Features and Applications CBS-80 is a commonly used post-effect accelerator for natural rubber and synthetic rubber.It has excellent anti-scorching performance,safe processing and fast curing rate.CBS-80 is often used together with accelerators such as TMTM, TMTD, PZ, DPG or other alkaline accelerators in synthetic rubber. It can also be activated by M and DM. It can effectively improve the extension and tensile strength of vulcanized rubber. CBS has slight discoloration but no blooming.Its vulcanized rubber has good mechanical and anti-aging properties.
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• First NOBS-80
• 
• Chemical composition N-Oxydiethylene-2-benzothiazole sulfonamide
• Complex carrier EPDM/SBR
• Features and Applications An excellent delayed accelerator which applicable for NR,SBR,BR and other synthetic rubber. NOBS-80 has low activity,short vulcanization time,good anti-scorching performance,safe processing and no blooming. Mainly used in manufacture of tires, shoes and belts.For consideration of environment, NOBS is replaced by TBBS(NS) now.
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• First OTOS-80
• 
• Chemical composition N-Oxydiethylene-2-benzothiazole sulfonamide
• Complex carrier EPDM/SBR
• Features and Applications A primary delayed accelerator for NR, SBR, NBR, EPDM etc. OTOS-80 has better delay effect and process safety than M and DM. It is suitable for high temperature vulcanization.The critical vulcanization temperature is 149 °C and it’s very active when exceeds this temperature.OTOS-80 has good anti-reduction performance,high heat resistance and low compression deformation for rubber products when use natural rubber for high temperature vulcanization.
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