Silicone Bases

CRI-SIL Silicone bases are ready for your demanding applications. They can be finished by adding your color and catalyst on a two roll mill or you can let us do it. Keep in mind that these bases are only a small percentage of the materials we offer.  Those listed here are just some of the more common products we provide. Most of our materials are custom developed specifically for our customers’ specific applications. If you don’t see what you are looking for, please contact us for a custom quote and/or sample.

Description                                                                                                   Datasheet

CSB135 – General Purpose 35 durometer silicone base. Will accept reinforcing and extending fillers. Can be blended with CSB175 for intermediate hardness.

CSB175 – General Purpose 75 durometer silicone base. Will accept reinforcing and extending fillers. Can be blended with CSB135 for intermediate hardness.

CSB870 – General Purpose 70 durometer silicone base for molding grades. Will accept extending filler and offers good mold release.

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CSB240 – No post cure Low Compression Set 40 durometer silicone base. Can be blended or compounded for intermediate hardness.

CSB260 – No post cure Low Compression Set 60 durometer silicone base. Can be blended or compounded for intermediate hardness.

CSB280 – No post cure Low Compression Set 80 durometer silicone base. Can be blended or compounded for intermediate hardness.

Description                                                                                                   Datasheet

CST2783U -Un-catalyzed 40 durometer base designed for sponge extrusion applications. This material does contain vinyl groups.

CST2784U -Un-catalyzed 40 durometer base designed for sponge extrusion applications. This material does NOT contain vinyl groups.

CST2785U -Un-catalyzed 60 durometer base designed for sponge extrusion applications. This material does contain vinyl groups.

CST2786U -Un-catalyzed 60 durometer base designed for sponge extrusion applications. This material does NOT contain vinyl groups.

EX747 – Un-catalyzed 45 durometer non-post cure silicone sponge base. When cured properly will exhibit medium tear resistance.

Description                                                                                                    Datasheet

CSB340 – Un-catalyzed 40 durometer high strength base designed for platinum cure.

CSB370 – Un-catalyzed 70 durometer high strength base designed for platinum cure.

CSB435 – Un-catalyzed 35 durometer high strength base designed for organic peroxide catalyst systems.

CSB450 – Un-catalyzed 50 durometer high strength base designed for organic peroxide catalyst systems.

CSB460 – Un-catalyzed 60 durometer high strength base designed for organic peroxide catalyst systems.