Silicone Sealants (siblings)
Neutral Alkoxy-Cure Silicone Sealant
Neutral alkoxy-cure silicone sealants release alcohol (methanol or ethanol) during cure — non-corrosive, suitable for stone, marble, copper, and aluminum substrates. The dominant chemistry for premium construction sealants and structural glazing. Standards: GB 16776, ASTM C920 Class 50.
Specifications
| Cure System | Alkoxy (alcohol byproduct) |
| Tack-Free Time | 20-60 min |
| Cure Depth (24h) | 2-3 mm |
| Hardness (Shore A) | 20-40 |
| Movement Capability | ±25% to ±50% |
Applications
- Curtain wall weatherproofing
- Stone facade joint sealing
- Aluminum-frame window perimeter
- Structural glazing (with appropriate grade)
- Cold-room and freezer door seals
Key Features
- Compatible with stone, marble, granite, concrete
- Compatible with copper, brass, lead
- GB 16776 and ASTM C920 dual certification (premium grades)
- 25-year service life in weatherproofing applications
- Premium movement capability (±50% with selected grades)
Send Inquiry
Cure System
Alkoxy (neutral)
Standards
GB 16776 / ASTM C920
Movement
±25% to ±50%
Sample
Within 5 business days
Availability
In Stock