SI XT-491 Tin-Based Silicone Rubber – Condensation Cured
$160.50
XT-491 is a high tear, high tensile strength, tin catalyzed silicone designed to be used when casting polyurethane foam, polyester and epoxy parts. XT-491 is useful for applications where a flexible rubber with increased chemical resistance is required. When catalyzed with one of our library life extending catalysts (see supplemental products) and stored correctly, a longer life of the cured mold should be expected. Its high tear strength, elongation and tensile strength make it an excellent choice for any mold making application. It is also resistant to inhibition by most common mold making substrates, eliminating the need to use mold sealers.
Description
Typical Properties of XT-491 Silicone
Uncatalyzed Compound
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Color
Viscosity (cps) Mixing Ratio (B/A) Mixed Viscosity Working Time Cure Time
Shelf Life
Base: Off White Base: 50,000 – 70,000 By weight: 100 / 10 30,000 – 45,000
1 to 1.5 hours
16 – 18 hours
6 months
Activator: Blue Activator: 350-500
By volume: 100 / 11.1
Vulcanized (cured) Properties (7 days @ 70° F / 50% relative humidity)
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Shore A Hardness (±3)
Tear Resistance (ASTM D624) Tensile Strength (ASTM D412) Elongation (ASTM D412) Service Temperature (° F) Shrinkage
Specific Gravity
Coverage (in3 / lb)
One day: 20 120 ± 10 ppi 525 ± 25 psi
300 ± 25 % -60 to 350
0.10 % 1.09 25.2
7 Days: 26
The information contained in this data sheet is, to our best knowledge, true and accurate, but all recommendations or suggestions are made without guarantee. Since the conditions of use are beyond our control, Silicones, Inc. disclaims any liability incurred in connection with the use of our products and information contained herein.
About Silicones, Inc.
Silicones, Inc. combines state-of-the art two-component room temperature vulcanized (RTV-2) silicone rubber technology with a solid commitment to individualized service and product development.
Silicone Inc. Capabilities
- Custom Capabilities
- Rigorous Testing
- Flexible Production Schedule
- Large Scale Capacity
Since its inception, Silicones, Inc. has continuously invested in equipment to expand its capabilities. They maintain significant inventory of raw materials allowing us to quickly respond to orders of standard and custom formulated products. Their testing procedures ensure that the product we provide will perform in your application.
As the cutting edge teaching facility, Anglers Artistry has to work with the best products and the best partners who care about the industry of taxidermy! Back in 1985 I took the opportunity to attend a 2 week workshop on molding parts un-related to taxidermy and walked away with the new product that would change how I create and, since we started teaching in 1991, how we teach!
I have been so excited to become a distributor for the taxidermy industry and as leader in the teaching of the “HOW-TOO’S” of products for the every day taxidermists it is our partnership with Silicone Inc that will continue to bring new innovations to you the artist!
My Best
Rick Krane
Additional information
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Brand | Silicone Inc. |
| Size | 10lbs |
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