C
mpare
T
l
Key Differences
| Product Type |
|
|
| Mixed Viscosity | 80,000 cps | 6,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Shore D Hardness | — | 90 |
| Shore A Hardness | 30 | — |
| Color | Translucent | Beige |
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™ | EpoxAcast™ 670 HT | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 80,000 cps | 6,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 1A:1B | 100A:16B |
| Pot Life | 2.5 hours | 3 hours |
| Cure Time | 6 hours | Twenty Four Hours Followed By Post Cures |
| Shore D Hardness | — | 90 |
| Shore A Hardness | 30 | — |
| Specific Gravity | 1.08 g/cc | 1.15 g/cc |
| Specific Volume | — | 20.51 cu. in./lb. |
| Color | Translucent | Beige |
| Tensile Strength | — | 4,500 psi |
| Tensile Modulus | — | 332,000 psi |
| Tensile Elongation | — | 0.65 % |
| Elongation @ Break | 550 % | — |
| Compressive Strength | — | 13,000 psi |
| Compressive Modulus | — | 101,400 psi |
| Flexural Strength | — | 11,000 psi |
| Flexural Modulus | — | 254,000 psi |
| Shrinkage | — | 0.002 in. / in. |
| Heat Deflection Temp | — | 350 °F |
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.
EpoxAcast™ 670 HT
EpoxAcast™ 670 HT is an easy-to-use epoxy casting compound that offers high heat resistance up to 350°F/177°C (post cure required). EpoxAcast™ 670 HT is ideal for making vacuum forming and thermoforming molds, creating foundry patterns, forming dies & fixtures, hard rollers, industrial parts and high impact tools. EpoxAcast™ 670 HT is also suitable for encapsulation applications or for use as a high temperature epoxy for bonding a variety of surfaces.