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Key Differences
| Product Type |
|
|
| Mixed Viscosity | Sprayable | 7,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 1.5 minutes | 20 minutes |
| Barcol 935 Hardness | — | 93 |
| Shore A Hardness | 35 | — |
| Specific Volume | 24.1 cu. in./lb. | 18.22 cu. in./lb. |
| Color | Purple | Black |
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
| EZ-Spray™ 35 | EpoxAcast™ 650 BLACK + 101 Hardener | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | Sprayable | 7,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | — | 100A:12B |
| Pot Life | 1.5 minutes | 20 minutes |
| Cure Time | 1 hour | 1 hour |
| Barcol 935 Hardness | — | 93 |
| Shore A Hardness | 35 | — |
| Specific Gravity | 1.15 g/cc | 1.52 g/cc |
| Specific Volume | 24.1 cu. in./lb. | 18.22 cu. in./lb. |
| Color | Purple | Black |
| Die B Tear Strength | 92 pli | — |
| Tensile Strength | 490 psi | — |
| Tensile Modulus | — | 1,503,000 psi |
| Ultimate Tensile | — | 6,000 psi |
| Tensile Elongation | — | 0.42 % |
| Elongation @ Break | 415 % | — |
| Compressive Strength | — | 16,350 psi |
| Compressive Modulus | — | 142,600 psi |
| Flexural Strength | — | 5,890 psi |
| Flexural Modulus | — | 710,000 psi |
| Shrinkage | <.001 in. / in. | 0.001 in. / in. |
| Heat Deflection Temp | — | 129 °F |
Product Description
EZ-Spray™ 35
EZ~Spray™ 35 is a platinum cure silicone rubber developed specifically for spraying through the EZ~Spray™ Junior Cartridge System. With no or minimal surface preparation, EZ~Spray™ 35 can be sprayed onto vertical surfaces for making fast rubber molds of large surface areas. After a suitable thickness is attained, EZ~Spray™ 35 cures in 1 hour with negligible shrinkage to a durable mold rubber good for production casting resins, foams, concrete, plaster and other materials. Application of a support shell is achieved by spraying Smooth-On’s EZ~Spray™ Plastic over the rubber mold after it has fully cured. Read the EZ~Spray™ Junior manual prior to spraying.
EpoxAcast™ 650 BLACK + 101 Hardener
EpoxAcast™ 650 BLACK is a mineral filled general purpose casting epoxies that is low cost and versatile. It features a low mixed viscosity for minimal bubble entrapment. Choose Fast, Medium or Slow catalyst to fit your project. You can also use HT Hardener to give your castings higher heat resistance. EpoxAcast™ 650 BLACK are used for making hard dies for metal stamping as well as patterns and fixtures. They are also used for electrical encapsulation to extend the life cycles and enhance the performance of potted electronic devices. The high compressive strength of EpoxAcast™ 650 BLACK makes it ideal for making stamping dies for production pressing of metal ornaments.