Coatings & Additives

Santogard PVI in Rubber Compounding Santogard PVI (CAS 17796-82-6) is a pre-vulcanisation inhibitor used to control scorch in rubber compounds. This page explains what scorch is, how PVI prevents it, and how to use it alongside delayed accelerators. What is scorch, and why prevent it? Scorch is premature vulcanisation – the compound beginning to crosslink

Rubber Accelerator D (DPG) in Vulcanization Rubber accelerator D (DPG, CAS 102-06-7) is a guanidine accelerator used mainly as a secondary accelerator and activator. This page explains what it does in the vulcanization system, where it is used, and how it is combined with thiazoles and sulfenamides. What DPG does in the cure system Role

Accelerator DCBS in Thick Rubber Sections Accelerator DCBS (CAS 4979-32-2) is the most delayed of the common sulfenamide accelerators, and its speciality is thick rubber sections. This page explains why thick parts need a strongly delayed accelerator, where DCBS is used, and how it compares with PVI as a scorch-control option. Why thick sections need

What Is Santogard PVI? Santogard PVI, CAS 17796-82-6, chemically N-(cyclohexylthio)phthalimide, is a pre-vulcanisation inhibitor (PVI) – an anti-scorch agent used in rubber compounding. It is not an accelerator: its job is the opposite. Added in small amounts, PVI extends the scorch time of a rubber compound so it can be processed, stored and shaped safely,

What Is Rubber Accelerator D (DPG)? Rubber accelerator D, also called DPG, CAS 102-06-7, chemically 1,3-diphenylguanidine, is a guanidine-type accelerator and secondary accelerator. It is a strong, fast accelerator on its own and, more often, is used as a secondary accelerator or activator with thiazole and sulfenamide accelerators, and in latex compounds. Where the sulfenamides

What Is Accelerator DCBS? Accelerator DCBS, CAS 4979-32-2, chemically N,N-dicyclohexyl-2-benzothiazolesulfenamide, is a sulfenamide (delayed-action) rubber accelerator with the longest scorch safety of the common sulfenamides. Its two cyclohexyl groups make it strongly delayed, which is why it is chosen for thick sections and large articles where heat build-up during cure is slow and premature vulcanisation

Accelerator MBTS (DM) in Rubber Vulcanization Accelerator MBTS (DM, CAS 120-78-5) is a thiazole-type accelerator used to control the sulfur vulcanization of rubber. This page explains what it does, where it is used, and how it differs from MBT and the sulfenamides. What it does in the cure system Role What happens Accelerator The benzothiazole

Accelerator TBBS (NS) in Rubber Vulcanization Accelerator TBBS (NS, CAS 95-31-8) is a sulfenamide delayed-action accelerator for sulfur vulcanization, and the most widely used accelerator in tyres. This page explains what it does, where it is used and how it is chosen. What it does in the cure system Stage What happens Mixing / processing

Accelerator CZ (CBS) in Rubber Vulcanization Accelerator CZ (CBS, CAS 95-33-0) is a sulfenamide delayed-action accelerator used to control the sulfur vulcanization of rubber. This page explains what it does in the cure system, where it is used and how it compares with the other sulfenamides. What it does in the cure system Vulcanization crosslinks

What Is Accelerator MBTS (DM)? Accelerator MBTS, also called DM, CAS 120-78-5, chemically 2,2′-dibenzothiazyl disulfide, is a thiazole-type rubber accelerator. It is a general-purpose accelerator with good scorch safety, used on its own or as a secondary accelerator (often with DPG) in tyres, technical rubber goods and general rubber. Thiazole accelerators were the first widely