Description
| Unit Size | Net Weight |
| Pint Kit | 1.8 lb |
| Gallon Kit | 18 lb |
| Five Gallon Kit | 90 lb |
Brush-On 40 polyurethane rubber is the softest of the series offering the most flexibility and is used for models with deep undercuts. Brush-On 40 can be inverted and used to make glove molds.
Smooth-OnÕs Brush-On Series of mold rubbers are extremely versatile and are famous for their abrasion resistance and high tear strength. They have the convenience of a one-to-one mix ratio and are easy to mix and apply with a brush or spatula. Brush-On 40, 50 & 60 paint onto vertical surfaces without sagging and will cure with negligible shrinkage to durable rubbers that perform and last in production. Each will capture exact detail from any original model.
Brush-On 40 is the softest of the series offering the most flexibility and is used for models with deep undercuts. Brush-On 40 can be inverted and used to make glove molds. Brush-On 50 and Brush-On 60 possess superior abrasion resistance and tear strength and are ideal for casting concrete and hard plasters in applications where less flexibility is required. These products are compatible. For example, you can apply two coats of Brush-On 40 and back it up with two coats of Brush-On 50 or 60. All three rubbers are suitable for reproducing sculpture, architectural restoration and production casting of concrete.
Smooth-OnÕs Brush-On Series of mold rubbers are extremely versatile and are famous for their abrasion resistance and high tear strength. They have the convenience of a one-to-one mix ratio and are easy to mix and apply with a brush or spatula. Brush-On 40, 50 & 60 paint onto vertical surfaces without sagging and will cure with negligible shrinkage to durable rubbers that perform and last in production. Each will capture exact detail from any original model.
Brush-On 40 is the softest of the series offering the most flexibility and is used for models with deep undercuts. Brush-On 40 can be inverted and used to make glove molds. Brush-On 50 and Brush-On 60 possess superior abrasion resistance and tear strength and are ideal for casting concrete and hard plasters in applications where less flexibility is required. These products are compatible. For example, you can apply two coats of Brush-On 40 and back it up with two coats of Brush-On 50 or 60. All three rubbers are suitable for reproducing sculpture, architectural restoration and production casting of concrete.
Properties
Technical Properties
| Mix Ratio by Weight | 100A:125B |
| Mix Ratio by Volume | 1A:1B |
| Pot Life | 20 minutes |
| Cure Time | 16 hours |
| Color | Off White |
| Shore Hardness | 40A |
| Mixed Viscosity | Brushable |
| Shrinkage | <.001 in./in. |
| Specific Volume | 23.7 cu. in./lb |
| Specific Gravity | 1.17g/cc |
| Tensile Strength | 300 psi |
| Elongation @ Break | 1,000% |
| Die C Tear Strength | 60 pli |
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