What it does

A primary accelerator that gives a slightly longer delay and higher modulus than CBS. Standard in tire tread compounds.

Compatible rubbers

NRSBRBRNBR

Typical properties

AppearanceOff-white granules
Melting point≥ 105 °C
Heat loss≤ 0.4 %
Ash≤ 0.3 %
DensityP1.29 g/cm³

P marked values are PubChem literature data (pure substance). Others are typical commercial specifications and vary by producer and grade [TO BE VERIFIED].

Typical dosage

0.5–2.0 phr [TO BE VERIFIED]

FAQ

Why is TBBS standard in tire tread compounds?It gives a long scorch delay and high modulus. It reduces the scorch risk in thick-section NR/SBR/BR compounds processed at high temperature.
Does TBBS deteriorate in storage?Sulfenamides can hydrolyze over time with moisture and heat and revert to MBT. This shows as a lower melting point and a shorter scorch time. Cool and dry storage is recommended.

Related guides

Which accelerator for which rubber?Choosing nitrosamine-safe acceleratorsInsoluble sulfur: why, how, how much?

Looking to source TBBS in Türkiye? Let's talk about producer selection and samples.rubberchem.com.tr →

Sources: PubChem CID 7230 · General rubber chemistry literature · PubChem page

Same class

CBS
N-Cyclohexyl-2-benzothiazolesulfenamideCAS 95-33-0
DCBS
N,N-Dicyclohexyl-2-benzothiazolesulfenamideCAS 4979-32-2
NOBS
N-Oxydiethylene-2-benzothiazolesulfenamideCAS 102-77-2
OTOS
N-Oxydiethylenethiocarbamyl-N'-oxydiethylenesulfenamideCAS 13752-51-7
TBSI
N-tert-Butyl-2-benzothiazolesulfenimideCAS 3741-80-8
CBBS
N-Cyclohexyl-N-butyl-2-benzothiazolesulfenamideCAS 3264-02-6