One-part, neutral-cure, high-modulus antifungal silicone sealant for kitchens, bathrooms and other wet or humid areas. Contains an antifungal agent that inhibits mould and mildew while remaining safe for human contact. ASTM C920 and ISO 846 compliant; TÜV SÜD PSB tested.
- Antifungal protection – inhibits mould and mildew in wet or humid areas
- Neutral cure – non-corrosive, low odour, suitable for sensitive substrates
- Excellent waterproofing – reliable seal against water and air penetration
- Withstands −48 °C to +149 °C and UV exposure
- ±25% dynamic joint movement (ASTM C719)
- Meets ASTM C920 and ISO 846; TÜV SÜD PSB tested
Colours: Translucent Clear, White, Black (custom colours on request)
Pricing: on enquiry · trade and project pricing available
Applications
Kitchen sinks, bathrooms and other high-moisture areas; joints in glass, metal, concrete, ceramic, wood and plastics; glass-to-glass and glass-to-metal sashing; prefabricated housing, freight containers and cold-storage interiors; ductwork and areas prone to fungal exposure.
Technical data
| Cure type | One-part, neutral cure |
|---|---|
| Modulus | High |
| Movement capability | ±25% (ASTM C719) |
| Service temperature | −48 °C to +149 °C |
| Standards | ASTM C920, ISO 846; TÜV SÜD PSB tested |
| Packaging | 300 ml cartridges, 25 per carton |
| Colours | Translucent Clear, White, Black (custom colours available) |
| Shelf life | 12 months, unopened |
Frequently asked questions
Is HT S25A waterproof?
Yes — it forms a reliable seal against water and air penetration, so it suits kitchens, bathrooms and other high-moisture areas.
Does HT S25A prevent mould and mildew?
Yes. It contains an antifungal agent that inhibits mould and mildew growth in wet or humid areas while remaining safe for human contact.
What surfaces does it bond to?
Glass, metal, concrete, ceramic, wood and plastics, including glass-to-glass and glass-to-metal sashing.
What temperature range can it withstand?
Once cured, −48 °C to +149 °C, with resistance to UV exposure.
HT sealants are distributed by Two Nine Six O Trading — full range and technical support at t2960.com.sg. Handy Hardware & Trading supplies HT sealants to trade and retail customers in Singapore; price and stock confirmed on enquiry.