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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 80,000 cps | 3,000 cps |
| Pot Life | 2.5 hours | 25 minutes |
| Cure Time | 6 hours | 24 hours |
| Shore A Hardness | 30 | 48 |
| Color | Translucent | Off White |
| Elongation @ Break | 550 % | 1,250 % |
Disclaimer
Although we do our best to ensure accuracy, Smooth-On offers no warranties, promises, and/or representations of any kind, either expressed or implied, as to the accuracy, completeness, or reliability of the information contained on this Compare Tool, nor suitability of the information contained herein to your particular circumstances. Smooth-On assumes no liability for losses or damages of whatever nature (direct, indirect, consequential or other) associated with your use, or inability to use, the Compare Tool, or from your use (or failure to use) the information contained herein. Other useful tools include product technical bulletins and our extensive FAQ section. You can also contact our technical support team.All Technical Data
| Si-Tac™ | Formlastic™ 48 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 80,000 cps | 3,000 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 100A:118B |
| Pot Life | 2.5 hours | 25 minutes |
| Cure Time | 6 hours | 24 hours |
| Shore A Hardness | 30 | 48 |
| Specific Gravity | 1.08 g/cc | 1.14 g/cc |
| Specific Volume | — | 24.3 cu. in./lb. |
| Color | Translucent | Off White |
| Die C Tear Strength | — | 98 pli |
| Tensile Strength | — | 700 psi |
| Elongation @ Break | 550 % | 1,250 % |
| 100% Modulus | — | 111 psi |
| Shrinkage | — | <0.001 in. / in. |
Product Description
Si-Tac™
Si-Tac™ is a two-part pourable liquid silicone adhesive that is applied to natural or synthetic fabric/clothing for the purpose of keeping sports or leisure wear in place during exercise. Garments will not shift or fall. Si-Tac™ can be mixed and applied by hand, but is also often meter mix dispensed and delivered to the garment surface at strategic points through a narrow static mixing tube before being quickly heat cured. Certified Skin Safe, cured rubber is soft, comfortable and flexes with every movement; never noticed by the wearer.
Si-Tac™ silicone performs over a wide temperature range, is very strong, sweat resistant and lasts through many laundering cycles.
Formlastic™ 48
Formlastic™ 48 urethane is a durable mold rubber made for production casting of concrete. It features a low viscosity for easy mixing and pouring and cures with minimal bubble entrapment. Mix ratio is 1A:1B by volume, pot life is 25 minutes and the rubber cures with an ultimate Shore hardness of Shore 48A. Cured rubber is dimensionally stable (low shrinkage), offers good wear resistance and will render color accurate concrete castings.
IMPORTANT: This product does not contain crystalline silica.