SILASTIC™ RTV-4250-S Base and Curing Agent is a high strength silicone rubber suited for prototyping, production tooling, artistic and renovation applications. It is recommended for use with polyesters, cement and rigid polyurethanes also can be used with plaster.
Features:- Outstanding release properties
- If required the product cure can be heat accelerated
- Fast thick section cure at room temperature
- Medium hardness
- High inhibition resistance
- High tear resistance
- Very high elasticity, for easy removal of complex replica parts
- Very low shrinkage and good dimensional stability
- Can be used for high temperature casting applications
- Can be made thixotropic (non-flowable) for vertical surface replication
- Fast RTV cure, very fast cure with even, low heat
- Very low viscosity for easy mixing and de-airing
- Fast, RTV cure
- Low durometer hardness
Typical Properties:- Mixing Viscosity: 12800 Centipoise
- Approximate De-mold Time: 7 hrs
- Color: Green
- Cure Type: Addition Cure
- Durometer - Shore A: 26 Shore A
- Elongation: 900 %
- High Tear: Yes
- Number of Parts: Two
- Polyesters: Yes
- Specific Gravity @ 25°C: 1.12
- Tear Strength: 140 ppi
- Tensile Strength: 1000 psi
- Type: Kit
- Working Time: 45 Minutes
