Products
Urethane Plastic
DESCRIPTION: Unfilled--100% solid Castable Urethane Resin systems. These two-component systems are odorless, low shrink, exhibit low reactivity temperature and have good impact resistance. Once cured, can be machined, sanded and drilled. Materials can either be hand or meter mixed. Fillers can be added to adjust cost, appearance and function--See Filler Product Tech Sheet for more information. These casting resins are used in a variety of applications: art reproductions, model kits, stage props, prototype pieces, tools and for duplicating masters.
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Siltec |
Silcast II |
Silplastic |
Hardcast |
Siltec-75 |
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PROPERTIES |
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Color |
Transluc |
White |
Tan |
Tan |
Transluc |
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Hardness (Shore D) |
55 |
65 |
65 |
70 |
75 |
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Viscosity** (cps) |
100/500 |
75/100 |
125/150 |
200/275 |
80/1800 |
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Tensile (psi) |
2565 |
2435 |
2450 |
2425 |
3050 |
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Elongation (%) |
27% |
18% |
16% |
17% |
20% |
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Izod Impact (FT LB/ IN) |
.66 |
.66 |
.65 |
.65 |
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Modulus (psi) |
13930 |
13225 |
12980 |
12990 |
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Shrinkage: Unfilled |
>1% |
.018* |
.0169* |
>1% |
>1% |
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Filled |
>.1 |
.00548* |
.006* |
>.1 |
>.1 |
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Specific Gravity |
1.08 |
1.08 |
1.08 |
1.09 |
1.08 |
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Gel Time (Seconds) |
180 sec |
180 sec |
300 sec |
180 sec |
120 sec |
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Processing Instructions:
Blend components "A" and "B" at the specified ratio with mixing stick for about 12 to 15 seconds. Do not use high shear mixers unless mixture contains filler. Pour immediately into the mold--if mold is non-silicone, use appropriate release agent. Do not disturb the mold until part is ready to be de-molded. Pressurize mold to aid in air release when needed. Painting or coating operations can be performed when material is fully cured 24-72 hours at 75F. Post cure at 100F for several hours can speed up cycle after 24 hours room temperature cure. Wash the surface to be painted with grease devolving soap or mineral spirits before painting. Off ratio can cause oily surfaces, which will limit paint adhesion. Please pre-test all coatings.
Storage/Shelf Life: 6 months
Components must be stored in their original, unopened containers at temperatures between 75F and 85F. Shelf life of materials when kept in unopened sealed containers, at the recommended storage conditions, is six months. Containers should not be opened until ready for immediate use. To avoid air entrapment, undue agitation of containers should be avoided.
ACCESSORIES
CU Pigments: Red, Yellow, Blue, Black, and White, Brown, Flesh
UD Translucent Dyes: Red, Yellow, Blue, Black
Bright Shade Powders: Glow Dust, Bright Green-Violet-Red-Yellow
Metal Powders: Bronze CB-21, Brass CG-10, Copper CC-11, Iron CI-30, White Metal CS-73
Fillers: Thermolite, Limestone CC-200, Hollow Glass HGF-100, Glass Beads GF-3000, Thermo-Conductive GAP-25, Marble Powder MP-200, Porcelain PP-300
The information and data contained herein are based on information we believe reliable. Each user of the material should thoroughly test any application and independently conclude satisfactory performance before commercializing. Suggestions of uses should not be taken as inducements to infringe on any particular patent.