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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 3,400 cps | 5,000 cps |
| Pot Life | 15 minutes | 10 minutes |
| Cure Time | 16 hours | 30 minutes |
| Shore A Hardness | 44 | 25 |
| Color | Beige | Translucent |
| Tensile Strength | 300 psi | 490 psi |
| Elongation @ Break | 400 % | 616 % |
| 100% Modulus | 90 psi | 66 psi |
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
| PMC™-744 | Dragon Skin™ 25 NV | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 3,400 cps | 5,000 cps |
| Mix Ratio By Volume | 2A:1B | 1A:1B |
| Mix Ratio By Weight | 2A:1B | 1A:1B |
| Pot Life | 15 minutes | 10 minutes |
| Cure Time | 16 hours | 30 minutes |
| Shore A Hardness | 44 | 25 |
| Specific Gravity | 1.01 g/cc | 1.1 g/cc |
| Specific Volume | 27.5 cu. in./lb. | 25.16 cu. in./lb. |
| Color | Beige | Translucent |
| Die B Tear Strength | — | 139 pli |
| Die C Tear Strength | 90 pli | — |
| Tensile Strength | 300 psi | 490 psi |
| Elongation @ Break | 400 % | 616 % |
| 100% Modulus | 90 psi | 66 psi |
| Shrinkage | < .001 in. / in. | <.001 in. / in. |
| Useful Temperature (min) | — | -65 °F |
| Useful Temperature (max) | — | 450 °F |
| Dielectric Strength | — | >350 volts/mil |
Product Description
PMC™-744
PMC™-744 has been used for years by mold making professionals to cast plaster, concrete, resins, etc. It is excellent for making molds that are strong, durable and dimensionally stable. Low viscosity ensures fine detail reproduction.
Dragon Skin™ 25 NV
Dragon Skin™ NV Series silicones are easy to use translucent platinum silicones that are mixed 1A:1B by volume (no weighing scale necessary). They feature very low viscosities and vacuum degassing is not required for most applications.
Properly cured Dragon Skin™ 25 NV complies with 21 CFR 177.2600 "Rubber articles intended for repeated use" for use with dry food and aqueous food only. This material has been tested by an independent laboratory to comply with 21 CFR 177.2600(e), water extractable limits for repeated use in aqueous food. This material is not intended for repeated use in contact with fatty foods.