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Key Differences
| Product Type |
|
|
| Mixed Viscosity | Brushable | 5,400 cps |
| Pot Life | 20 minutes | 5 minutes |
| Cure Time | 6 hours | 24 hours |
| Shore A Hardness | 25 | 85 |
| Color | Orange | Amber |
| Tensile Strength | 515 psi | 3,400 psi |
| Elongation @ Break | 690 % | 121 % |
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
| Rebound™ 25 | URE-BOND™ II | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | Brushable | 5,400 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 100A:92B |
| Pot Life | 20 minutes | 5 minutes |
| Handling Time | — | 60 minutes |
| Cure Time | 6 hours | 24 hours |
| Shore A Hardness | 25 | 85 |
| Specific Gravity | 1.14 g/cc | 1.1 g/cc |
| Specific Volume | 23.5 cu. in./lb. | 25 cu. in./lb. |
| Color | Orange | Amber |
| Die B Tear Strength | 102 pli | — |
| Die C Tear Strength | — | 175 pli |
| Tensile Strength | 515 psi | 3,400 psi |
| Elongation @ Break | 690 % | 121 % |
| 100% Modulus | — | 700 psi |
| Shrinkage | <.001 in. / in. | 0.0038 in. / in. |
Product Description
Rebound™ 25
Rebound™ 25 is an easy-to-use platinum-cure silicone rubber which self-thickens for making brush-on molds of almost any model. Mixed 1A:1B by volume (no scale necessary), Rebound™ rubber can be applied with a brush or spatula to vertical surfaces without sagging and will cure with negligible shrinkage to a flexible rubber.
URE-BOND™ II
URE-BOND™ II is a premium performance urethane adhesive compound that offers a strong flexible bond between many different surfaces. URE-BOND™ is ideal for adhering polyurethane rubber and other polymer products to many types of substrates (such as plaster, wood, cement, stone) and non-porous materials (such as glass, hard plastics and a variety of metals). URE-BOND™ II has also been used to repair torn polyurethane molds on a limited basis (with proper surface preparation). Working time is 5 minutes at room temperature (73° F / 23° C). Once mixed and applied, URE-BOND™ takes about 60 minutes to cure and yields a strong, flexible bond.