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Trigonox® 101-45S-ps 45S-Curing Agent for silicone rubbers

Product Name: Crosslinking of silicone rubbers. 

Other Names: curing agent, curing ingredient,vulcanizing agent,vulcanizater  

crosslinking agent, cross linking agent, bridging agent

accelerant, accelerating agent, accelerator, cure accelerator for silicone rubber

Item NO.: Silibase-45S

Equivalent Product:Trigonox® 101-45S-ps 

 

Product description

2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane, paste 

45% in silicone oil


Molecular weight :                                     290.4 

Active oxygen content peroxide :                         11.02% 

actual product :                                        4.84-5.06% 

CAS No. :                                            78-63-7 

EINECS/ELINCS No. :                                 201-128-1 

TSCA status :                                         listed on inventory 

Silibase-45S is a bifunctional peroxide formulation which is mainly used for the crosslinking of

 silicone rubbers. 
Specifications

Appearance :                                        White high viscous paste 

Assay :                                             44.0-46.0% 

Characteristics

Density, 20°C :                                     0.940 g/cm³

Major decomposition products

Methane, Ethane, Acetone, tert-Butanol, tert-Amylalcohol 

 

Applications

Silibase-45S is mainly used for the crosslinking of silicone rubbers. 

• Rubber compounds containing Silibase-45S have excellent scorch safety. 

• Safe processing temperature: 135°C (rheometer ts2 > 20 minutes). 

• Typical crosslinking temperature: 175°C (rheometer t90 about 12 minutes). 


Thermal stability

Organic peroxides are thermally unstable substances, which may undergo self-accelerating

 decomposition. The lowest temperature at which self-accelerating decomposition of a substance

 in the original packaging may occur is the Self-Accelerating Decomposition Temperature (SADT). 

The SADT is determined on the basis of the Heat Accumulation Storage Test. 

For Silibase-45S           SADT : 80°C (176°F) 
The Heat Accumulation Storage Test is a recognized test method for the determination of the 

SADT of organic peroxides.

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