BRB's Toolkit for Addition cured Elastomer systems - News

BRB offers a comprehensive range of raw materials for formulating addition-cured elastomer systems. This includes basic vinyl polymers, such as BRB Vinyl Dimethicone, which fully comply with SVHC regulations. Additionally, the silicone hydrides are available both as in-chain and end-capped variants.

Our range of BRB Vinyl Dimethicone includes the following:

Product name

Viscosity (cSt)

Vinyl content (mmol/g)

BRB Vinyl Dimethicone 20 cSt

1.0

BRB Vinyl Dimethicone 100 cSt

100

0.38

BRB Vinyl Dimethicone 200 cSt

200

0.25

BRB Vinyl Dimethicone 500 cSt

500

0.15

BRB Vinyl Dimethicone 1000 cSt

1000

0.11

BRB Vinyl Dimethicone 2000 cSt

2000

0.08

BRB Vinyl Dimethicone 5000 cSt

5000

0.06

BRB Vinyl Dimethicone 10.000 cSt

10000

0.05

BRB Vinyl Dimethicone 20.000 cSt

20000

0.04

BRB Vinyl Dimethicone 65.000 cSt

65000

0.03

*BRB Vinyl Dimethicones

The silicone hydrides, available as both in-chain and end-capped variants, as well as inhibitors and, of course, the catalyst.

The in-chain silicone hydrides are classified as BRB Crosslinkers, while the end-capped variants fall under our BRB Modifiers.

Additionally, our product portfolio includes hybrid forms containing both in-chain and end-capped SiH groups. These hybrids provide dual functionality, serving as both crosslinking agents and chain extenders.

Product name

Type of SiH

Viscosity (cSt)

SiH content (mmol/g)

BRB Crosslinker 434H4

Pendant

4.0

BRB Crosslinker 1595 H7

Pendant

7.0

BRB Crosslinker 1738 H1.9

Pendant

1.9

BRB Crosslinker 959 H2.5

Pendant & End capped

2.5

*BRB Crosslinkers SiH functional (in-chain)

...and, of course, our BRB Modifiers, which are essential for formulating lower-viscosity RTV-2 systems.

Product name

Type of SiH

Viscosity (cSt)

SiH content (mmol/g)

BRB Modifier 1439

End-capped

2.5

BRB Modifier 1449

End-capped

1.3

*BRB Modifiers

To control the reaction speed, we also offer BRB Inhibitors, which are available in liquid form for easy handling and precise dosing.

Product name

Viscosity (cSt)

Density (g/cm3)

BRB Vinyl M2

0.81

BRB Vinyl D4

0.98

*BRB Inhibitors

To complete the package, we also offer Karstedt Platinum catalyst, available in a standard concentration of 10,000 ppm, with options for different active platinum concentrations.

To complete our toolkit, we offer a variety of Vinyl MQ resin blends as well as solid vinyl-functional resins.

Product name

Appearance

Viscosity (cSt)

Vinyl content (mmol/g)

BRB MQ 322

Clear transparent liquid

5500

0.20

BRB MQ 325

Clear transparent liquid

6500

0.26

BRB MQ 330

Clear transparent liquid

6500

0.30

BRB MQ 339

Clear transparent liquid

6500

0.22

BRB MQ 393

Clear transparent liquid

50.000

0.20

BRB VMQ 100

White powder

0.9

*BRB Vinyl MQ resins blends/solid vinyl-functional resins

For more information, please contact your local representative, whose details can be found on our website: https://www.brb-international.com/silicones/contact