Silfix® U8
Verified by manufacturer 3 months ago
A low modulus, neutral cure, solvent-free, alkoxy silicone sealant.
Application
Suitable for:
- Perimeter pointing of door and window frames.
- Sealing between dissimilar materials such as unplasticized polyvinyl chloride (PVC-U), aluminium, composite and timber frames into masonry, brick and plaster walls.
- Sealing curtain walling and pre-formed panels.
- Joints in roofing, cladding, insulation and guttering.
- Sealing of construction joints where movement can occur.
- Use in expansion joints.
- Bonding and sealing of PVC-U trims and components.
- Sealing and bonding of metals including; lead, copper and bronze.
- Glass to glass sealing.
- General weather and draft-proofing applications.
Description
A low modulus, neutral cure, solvent-free, alkoxy silicone sealant with good application characteristics and high adhesion to a wide range of substrates used in the building envelope.
Features and benefits:
- Low modulus, neutral cure (25LM).
- Good tooling properties.
- Good primer-less adhesion to most substrates.
- High ultraviolet (UV) radiation, ozone and temperature resistance.
- Low odour.
- Non-slump.
- CE marked for facade and glazing applications including cold climates to EN 15651-1-F-INT-EXT-CC: CLASS 25LM EN 15651-2: G-CC–25LM.
- The product is specifically formulated and suitably packaged for the professional applicator.
- Slump: Non-sag.
- Base technology: Acetoxy; one component; RTV silicone polymer.
General information
Color | Black Brown Red Guidance for specification option: Brick red. Grey White |
Material | Silicon |
Uniclass | |
CAWS | E40/530 Sealant F11/116 Mortar jointed, sealant pointed glass block walling F11/121 Sealant jointed glass block walling F11/136 Mortar jointed, sealant pointed glass block walling F11/141 Sealant jointed glass block walling F11/15 Mortar jointed, sealant pointed glass block walling F30/610 Movement joints with sealant H11/110 Curtain walling H40/785 Sealant jointing H41/655 Sealant jointing proprietary system H42/661 Sealant joints H51/610 Sealant joints H51/630 Movement joints H92/770 General sealants L10/810 Sealant joints L20/80 Sealant joints L20/820 Sealant joints L40/195 Glass-to-glass jointing – proprietary N10/460 Sealant N10/760 Sealant bedding and pointing N10/80 Sealant R10/11 Aluminium gutters R10/360 Sealant for gutters |
Product range |
Specification data - Silicone construction joint sealants
Standard | To EN 15651-1, and EN 15651-2. |
Third party certification | CE marked. |
Material | Neutral cure. |
Class | G-25LM. |
Colour | Anthracite.Black.Brick red.Brown.Buff.Grey.White. |
Class | F-INT-EXT-CC 25LM to EN 15651-1, G-CC–25LM to EN 15651-2. |
Adhesion | Excellent. |
Movement | ±25% (accommodation). |
Chemical resistance | Excellent. |
Curing compound | Moisture cure. |
Hardness (shore A) | 30–32. |
Cure time | Tack free time: 35 minutes at +23°C/ 50% RH. |
Density | 1.50 g/ml. |
Cure speed | 2-3 mm per 24 hours. |
TensileStrength | 1.9 N/mm². |
UV resistance | Excellent. |
Elongation | ~680%. |
Application temperature range | +5 to +40°C. |
Service temperature range | -40 to +150°C. |
Literature
Silfix U8