Urethane Plastics
Siltec 75
Siltec-75 Translucent, Castable Urethane Plastic that exhibits low reactivity temperature and has good impact resistance. Use for Bonded Bronze and Cold Casting with Metal Fillers. Once cured, can be machined, sanded and drilled.
Applications:
This quality casting resins is used in art reproductions, model kits, stage props, prototype pieces, tools and for duplicating masters. **Great for “Cold Casting” with Metal Powders.
Mixing Instructions:
Prior to mixing, weigh appropriate amounts of Castable Urethane in separate containers by weight. Combine components and mix for 20 seconds and immediately pour into Silicone RTV mold (*Use proper release if mold is not Silicone). Pressurizing or de-airing after mix, for a short time, will result in an acceptable casting. Spray ER-2300 into Silicone RTV before casting to maximize mold life.
|
Property |
Test Method |
Results |
|
Solids By Weight (%): |
|
|
|
Specific Gravity: |
ASTM D‑1638 |
|
|
Shrinkage: |
ASTM D-1353 |
Unfilled >1% , Filled >0.1 |
|
Viscosity at 73F (CPS): |
ASTM D‑2196 |
|
|
Gel Time: |
|
2 minutes |
|
Cure Time: |
|
10-15 minutes |
|
Mix Ratio: |
By Weight: |
50 A / 50 B |
|
|
By Volume |
48% ISO / 52% POLY |
*Reactivity times are influenced by many equipment variables, including size of pour -shape, ambient temperature and humidity.
|
Property |
Test Method |
Results |
|
Color: |
|
Translucent |
|
Hardness Shore“D: |
|
75 |
|
Tensile Strength (psi): |
ASTM D-2370 |
3050 |
|
Elongation: |
ASTM D-2370 |
20% |
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.