A transparent one-part silicone sealant for expansion and connection joints in façades and building structures.
DOWSIL™ 791T is a neutral curing, low modulus silicone sealant designed for expansion, connection and other movement joints in curtain walling façades, building façades and construction structures. It provides excellent primerless adhesion to a wide range of construction substrates, including glass, glazed surfaces, concrete, stone, masonry, brick, wood, steel, ceramics and painted surfaces.
Manufacturer: DOW
Technical highlights
- Cure system: neutral
- Joint movement: up to 50 %
- Hardness: Shore A 15
- Elongation at break: 575 %
- Tensile strength: 1.3 MPa
- Skin-over time: 10–15 min
- Application temperature: +5 °C to +40 °C
Storage and packaging
- Usable life: 12 months
- Store in original unopened containers in cool, dry conditions below 30 °C
- Packaging: 310 ml cartridges, 12 per box
STANDARDS AND COMPLIANCE
- ISO 11600 – F&G-25LM
- SNJF (F&G – 25E)
- ISO 846 (mould resistance)
Note
For porous substrates, Dow specifies DOWSIL™ Construction Primer P. Before use, substrate compatibility should be evaluated and the manufacturer’s TDS and SDS documentation should be followed.
📄 Technical documentation
Download the product TDS / PDF for detailed technical information.
📩 Inquiry
For pricing, product availability, technical documentation and B2B supply options in your market, please contact us.