Silicones, Inc.Silicones, Inc.RTV-2 Silicone Rubber

Platinum and tin cure

2 Part RTV Silicone Rubber, made in America to exacting specifications.

Silicones, Inc. manufactures platinum and tin cure RTV-2 systems for molding, casting, and industrial work. Find the right material by the properties that matter.

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52years manufacturing RTV-2 silicone rubberSince 1974 · High Point, North Carolina

What Shore A hardness actually feels like

Durometer is a hardness scale. Move the marker to see where a value lands against everyday objects, from a soft band to a rigid wheel.

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Shore 00

Shore A

Shore D

SofterFirmer

40Shore A

00
70
A
40
D
<0

Feels like a pencil eraser

Soft, but holds its shape.

Platinum cure, tin cure, or supplemental.

The cure system shapes accuracy, shrinkage, and cost. Here is how the two compare, plus the SI additives that work with either. Confirm specifics with our team before you order.

Addition cure

Platinum cure

Shrinkage
Nil
Dimensional accuracy
High
Cure byproduct
None
Best for
Dimensional stability and library life
View platinum cure products

Condensation cure

Tin cure

Shrinkage
Slight, depends on activator
Inhibition resistance
Very high
Ease of use
High
Best for
General purpose mold making and animatronics
View tin cure products

Either cure

Supplemental

Products
SI series
Adjusts
Flow, finish, adhesion
Cure chemistry
Unchanged
Best for
Tuning a rubber to the job
View supplemental products

Built for engineers and buyers who need it right.

  1. 01

    Made in America

    Manufactured in High Point, North Carolina since 1974, with domestic supply and oversight at every step.

  2. 02

    Delivery reliability

    Consistent lead times and dependable fulfillment, so your production schedule holds.

  3. 03

    Technical expertise

    Application support from people who know the chemistry and can help you match material to use.

  4. 04

    Customer service

    Direct, responsive contact. Real answers to real engineering and procurement questions.

Industries we supply.

RTV-2 silicone serves a wide range of technical applications. Explore the areas we support.

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Help Me Pick walks through your application, then prepares a technical inquiry for our team to confirm before you order.

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