TOPP
Neutral cure weatherproofing silicone
A one-part neutral silicone that bonds well to exterior joints and stands up to weather without breaking down. It seals out air and water for the long term, keeping maintenance costs low. Non-bleeding, for connection and expansion joints.
Properties
- Movement capability ±30%
- Elongation at break approx. 400–500%
- Non-bleeding, non-corrosive
- Low VOC, for indoor and outdoor use
- Skin forms in about 10 minutes
- Works from −50 °C to +150 °C
Where to use it
- Window perimeter joints
- Aluminium panel joints
- Curtain wall external joints
- Cleanroom panel joints
- Internal and external building joints
Technical summary
| Made by | Wacker Chemicals Korea, Jincheon plant |
|---|---|
| Cure | Neutral (oxime), moisture cure |
| Classification | KS F 4910 F-25HM |
| British standards | BS 5889:1989 and BS 3712:1985, tested by Fugro Hong Kong (2025), all tests passed |
| Hardness | Shore A approx. 30 |
| Pack | 300 ml cartridge |
