PlatSil® 73-15 Silicone Rubber
$53.00 - $1,280.00
PlatSil® 73-20 Silicone Rubber
PlatSil® 73-20 Silicone Rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to a blue translucent, Shore A20 rubber. Compared to other silicones in the PlatSil® 73-Series line, this option sets quickly with a demold time of 1 hour (at room temperature). The transparency of PlatSil® 73-20 is useful for molds that need to be cut after cure – parting lines can be better determined because the model is visible. This is a pourable rubber, but it can be easily thickened with PlatThix Liquid Thickener or Fumed Silica for brush-on application.
FOR INDUSTRIAL/PROFESSIONAL USE ONLY.
$53.00
Technical Specifications
- Mix Ratio by Weight:
- 1A:1B
- Shore Hardness:
- A22
- Pour Time:
- 5 min.
- Demold Time:
- 1 hr.
- Cured Color:
- Blue, Translucent
- Mixed Viscosity:
- 3,000 cP
- Specific Volume:
- 25 in³/lb
- Specific Gravity:
- 1.1
- Elongation:
- 460 %
- Tensile Strength:
- 230 psi
- Die B Tear Strength:
- 45 pli
- Die T Tear Strength:
- 17 pli
- Cure Inhibition:
- Contamination from sulfur (e.g., sulfur-based clay), amines, tin compounds, cured polyester resin, some paints and some silicone rubbers may inhibit surface cure of platinum-cured rubbers.
More Information
| PlatSil® 73-20 | Components |
|---|---|
| 2-lb kit includes: | 1 lb of PlatSil® 73-20 Part A (~1 pint) 1 lb of PlatSil® 73-20 Part B (~1 pint) |
| 16-lb kit includes: | 8 lb of PlatSil® 73-20 Part A (~1 gallon) 8 lb of PlatSil® 73-20 Part B (~1 gallon) |
| 80-lb kit includes: | 40 lb of PlatSil® 73-20 Part A (~5 gallons) 40 lb of PlatSil® 73-20 Part B (~5 gallons) |
