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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 300 cps | 5,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 1.5 minutes | 3 hours |
| Barcol 935 Hardness | — | 93 |
| Specific Volume | 420 cu. in./lb. | 18.22 cu. in./lb. |
| Color | Black | Off White |
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
| FOAM-iT!™ 4 BLACK | EpoxAcast™ 650 + HT Hardener | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 300 cps | 5,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 100A:87B | 100A:10B |
| Pot Life | 1.5 minutes | 3 hours |
| Tack Free Time | 20 minutes | — |
| Cure Time | 2 hours | Twenty Four Hours Followed By Post Cures |
| Barcol 935 Hardness | — | 93 |
| Expansion (approximate) | 14 times | — |
| Foam Density | 4 lb/ft³ | — |
| Specific Gravity | 0.06 g/cc | 1.52 g/cc |
| Specific Volume | 420 cu. in./lb. | 18.22 cu. in./lb. |
| Color | Black | Off White |
| Tensile Modulus | — | 1,079,000 psi |
| Ultimate Tensile | — | 6,900 psi |
| Tensile Elongation | — | 0.82 % |
| Compressive Strength | — | 15,980 psi |
| Compressive Modulus | — | 134,400 psi |
| Flexural Strength | — | 10,850 psi |
| Flexural Modulus | — | 775,000 psi |
| Shrinkage | — | 0.007 in. / in. |
| Heat Deflection Temp | — | 187 °F |
Product Description
FOAM-iT!™ 4 BLACK
Smooth-On’s FOAM-iT!™ Series are two-component water blown rigid foams that are versatile and easy to use. FOAM-iT!™ products are available in 3lb., 4 lb., 5 lb., 8 lb., 10 lb.,15 lb. or 26 lb. per cubic foot densities. Parts A and B are measured and mixed in equal amounts by volume. The mixture is then poured into a mold or other form (apply release agent if necessary). The mixture will expand many times original volume (depending on which FOAM-iT!™ product you are using) and develop a uniform cell structure. FOAM-iT!™ 4 Black is pre-pigmented to a very deep black color.
All FOAM-iT!™ products can be used as a straight casting material, backfill material for hollow castings (adds structural strength) or as an encapsulation material, etc. They can be color pigmented with SO-Strong™, UVO™ or IGNITE™ colorants and are used for a variety of art/ craft, industrial design and special effects applications
› Click here for more FOAM-iT!™ rigid foam products.
EpoxAcast™ 650 + HT Hardener
EpoxAcast™ 650 is a mineral filled general purpose casting epoxy that is low cost and versatile. It features a low mixed viscosity for minimal bubble entrapment.EpoxAcast™ 650 is used for making hard dies for metal stamping as well as patterns and fixtures. It is 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 makes it ideal for making stamping dies for production pressing of metal ornaments.