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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 300 cps | Brushable |
| Pot Life | 1.5 minutes | 18 minutes |
| Cure Time | 2 hours | 16 hours |
| Shore A Hardness | — | 40 |
| Specific Volume | 420 cu. in./lb. | 27 cu. in./lb. |
| Color | Black | Grey |
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 | EZ-Mix™ 40 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 300 cps | Brushable |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 100A:87B | 100A:95B |
| Pot Life | 1.5 minutes | 18 minutes |
| Thin Film Recoat Time | — | 60 minutes |
| Tack Free Time | 20 minutes | — |
| Cure Time | 2 hours | 16 hours |
| Shore A Hardness | — | 40 |
| Expansion (approximate) | 14 times | — |
| Foam Density | 4 lb/ft³ | — |
| Specific Gravity | 0.06 g/cc | 1.025 g/cc |
| Specific Volume | 420 cu. in./lb. | 27 cu. in./lb. |
| Color | Black | Grey |
| Die C Tear Strength | — | 67 pli |
| Tensile Strength | — | 420 psi |
| Elongation @ Break | — | 577 % |
| Shrinkage | — | <.001 in. / in. |
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.
EZ-Mix™ 40
EZ~MIX™ 40 is a brushable polyurethane rubber mold compound that mixes and applies easily. Two liquids (Part A and Part B) are measured and combined in equal amounts by volume (no scale is necessary). After a few minutes of mixing, EZ~MIX™ 40 is ready to be applied to a vertical surface with a brush. After a suitable thickness is attained (multiple layers), EZ~MIX™ 40 cures overnight with negligible shrinkage to a flexible, durable mold rubber. Following the application of a support shell, a rubber mold made with EZ~MIX™ 40 is suitable for casting a variety of materials including wax, gypsum, urethane/epoxy resins, concrete, cement, etc.