GTP ButterOn 20
Urethane Elastomer
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| Description | GTP ButterOn 20 is a two -component urethane elastomer that is specifically formulated as a brush on molding compound. After mixing, GTP ButterOn 20 thickens to creamy butterable gel that can easily be brushed on to vertical or overhead surfaces without sagging or running. In 24hours GTP ButterOn 20 cures to a tough rubber mold and is ready for use. |
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| Application | GTP ButterOn 20 is fully cured in 24 hours at 72° F. Colder curing temperatures will lengthen cure times. Warmer temperatures will greatly reduce working and cure times. For clean -up use methyl ethyl ketone (M.E.K.), acetone or mineral sprits. |
| Mix Ratio | Component A and component B are supplied in 1 to 5 gallon containers. Component B should be thoroughly mixed before using. Component A does not need mixing. Carefully measure out equal portions of component A and component B by volume in separate containers. M ix small batches by hand with a spatula. Larger batches should be mixed using a “Jiffy mixer” and ele ctric drill. While mixing material carefully scrape down sides and bottom of container. Mixture gradually thickens over 3 to 4 minute period to a creamy butterable consistency. |
| GTP ButterOn 20 is mixed 1 part of component A to 1 part of component B by volume, and has working life of 15 to 20 minutes @ 72° F. Warmer temperatures will decrease working life where as colder temperatures will increase working life. GTP ButterOn 20 can also be mixed by weight: 100 parts A to 96 parts B. |
| Typical Properties | Viscosity | Specific Gravity Weight Per Gallon | ||||
|---|---|---|---|---|---|---|
| Component A | 2500 cps | 1.11 | 9.24 lb. | |||
| Component B | 1100 cps | 1.06 | 8.86 lb. | |||
| Mixed | 500,000 cps | 1.09 | 9.05 lb. | |||
| Mixing Ratio | By volume | 1 part A to 1 part B | ||||
| By weight | 100 parts A to 96 parts B | |||||
| Work life | 20 minutes @ 72° F | |||||
| Set time | 24 hours @ 72° F | |||||
| Set time and Demold depend on temperature and relative humidity | ||||||
| Physical Properties | Test Method | Value | ||||
| Hardness | ASTM 2240-85 | 25 Shore A | ||||
| Tensile strength | ASTM-D412 | 428 psi | ||||
| Elongation | ASTM-D412 | 538 % | ||||
| Modulus (100%) | ASTM D412 | 136 psi | ||||
| Modulus (200%) | ASTM D412 | 209 psi | ||||
| Modulus (300%) | ASTM D412 | 267 psi | ||||
| Tear strength | ASTM-624 | 94 lb./in. | ||||
Cubic inch per lb. of product 25.52
Color Purple
Shelf Life GTP ButterOn 20 is shipped from the factory in sealed containers. The containers should be stored in a cool dry area that is protected from direct sunlight and moisture. Storage tempera tures should not exceed 80° F. The shelf life of factory sealed containers stored under these conditions is six months. Containers that have been opened should be resealed immediately after material has been removed in order to prevent solvent evaporation.
Packaging GTP ButterOn 20 is available in convenient 2-quart, 2-gallon, 10-gallon, 60-gallon and 100-gallon kits. GTP ButterOn 20 has a non-hazardous rating for shipping.