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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 280 cps | Light Paste |
| Mix Ratio By Volume | N/A (gram scale required) | 5A:1B |
| Pot Life | 5 hours | 20 minutes |
| Cure Time | 24 hours | 16 hours |
| Barcol 935 Hardness | — | 87 |
| Specific Volume | 25 cu. in./lb. | 19.4 cu. in./lb. |
| Color | Clear | White |
| Compressive Strength | 9,610 psi | 24,000 psi |
| Flexural Strength | 10,980 psi | 30,000 psi |
| Shrinkage | 0.002 in. / in. | 0.00015 in. / in. |
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
| EpoxAcast™ 690 | EpoxAcoat™ WHITE | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 280 cps | Light Paste |
| Mix Ratio By Volume | — | 5A:1B |
| Mix Ratio By Weight | 100A:30B | 100A:15B |
| Pot Life | 5 hours | 20 minutes |
| Thin Film Working Time | — | 40 minutes |
| Thin Film Recoat Time | — | 60 minutes |
| Tack Free Time | — | 4 hours |
| Cure Time | 24 hours | 16 hours |
| Barcol 935 Hardness | — | 87 |
| Shore D Hardness | 80 | 85 |
| Specific Gravity | 1.10 g/cc | 1.43 g/cc |
| Specific Volume | 25 cu. in./lb. | 19.4 cu. in./lb. |
| Color | Clear | White |
| Tensile Strength | 6,630 psi | — |
| Tensile Modulus | 572,000 psi | — |
| Ultimate Tensile | — | 26,000 psi |
| Tensile Elongation | 1.8 % | — |
| Compressive Strength | 9,610 psi | 24,000 psi |
| Compressive Modulus | 91,300 psi | — |
| Flexural Strength | 10,980 psi | 30,000 psi |
| Flexural Modulus | 410,000 psi | — |
| Shrinkage | 0.002 in. / in. | 0.00015 in. / in. |
| Heat Deflection Temp | 115 °F | 133 °F |
| Index of Refraction at 20°C | 1.565 | — |
Product Description
EpoxAcast™ 690
EpoxAcast™ 690 is an UV resistant clear casting epoxy resins suitable for a variety of industrial and art related projects requiring a rigid, clear finished casting. EpoxAcast™ 690 features a very low viscosity for easy mixing and minimal bubble entrapment. Castings cure with negligible shrinkage and are very hard and strong. Resin can be colored with UVO™ or IGNITE™ colorants. Cast Magic™ and Glow Worm™ powders can also be added to create amazing casting effects.
EpoxAcoat™ WHITE
EpoxAcoat™ RED, GREY, WHITE and NEUTRAL are thixotropic epoxy gel coats which are widely used for hand laminating and tooling applications. They are tough and strong surface coat resins which cure at room temperature and offer exceptional abrasion resistance. EpoxAcoat™ NEUTRAL is formulated “color neutral” specifically for adding color pigments and fillers. For high temperature applications (to 284°F / 140°C) use EpoxAcoat HT™ (see separate technical bulletin).