Silfix® U9
Verified by manufacturer 4 months ago
Premium quality, low modulus, alkoxy cure, highly versatile silicone sealant.
Application
Suitable for:
- Sealing joints between glass-reinforced plastic (GRP) panels and roof sheets, trims and flashing in roofing and cladding, PVC-U, aluminium, steel, timber frame and door surrounds, and wall tiling.
- Capping and bedding of glass and insulating glass units in bead glazing systems.
- Many forms of expansion/ construction joints in buildings.
- Fully compatible with Hodgson’s Flexistrip and range of butyl strip sealants.
- Sealing joints in general industrial applications such as those found in heating and ventilation, sectional buildings etc.
- Sealing glazing plastics such as polycarbonate.
Description
A low modulus, silicone sealant. Conforming fully to the requirements of BS 5889 Type-A and ISO 11600 classification G-25-LM, it offers good performance across a wide variety of glazing, industrial and construction applications.
Features and benefits:
- Good adhesion to a wide variety of surfaces including un-plasticized polyvinyl chloride (PVC-U), coated metals, brickwork, stone, polycarbonate, coated timber and glass.
- Compatible with all major European edge sealants for double glazed units.
- High movement accommodation.
- Suitable for use with laminated glass.
- Meets the requirements of EN 15651-1: F-EXT-INT-CC: Sealant for facade of interior and exterior application (intended for use in cold climates). EN 15651-2: G-CC: Sealant used for sealing glazing applications (intended for use in cold climates).
- Non-flammable.
- It has good adhesion to glass, timber, metals, brickwork, plastics and concrete and does not normally require a primer.
- Designed for the professional user.
- No slump.
- Nil staining on most surfaces.
General information
Color | Black Brown Grey White Other Guidance for specification option: Translucent. |
Finish | Semi-gloss |
Material | Silicone |
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 H40/785 Sealant jointing H41/655 Sealant jointing proprietary system H42/661 Sealant joints H51/610 Sealant joints H51/630 Movement joints H71/770 Wedge fixing into joints/ Chases H71/780 Wedge fixing into damp-proof course joints H71/83 Wedge fixing into joints/ chases H71/85 Wedge fixing into damp-proof course joints H72/65 Wedge fixing into joints/ chases H72/770 Wedge fixing into joints/ chases H72/780 Wedge fixing into damp-proof course joints H73/73 Wedge fixing into joints/ Chases H73/770 Wedge fixing into joints/ chases H73/780 Wedge fixing into damp proof course joints H74/65 Wedge fixing into joints/ chases H74/770 Wedge fixing into joints/ chases H74/780 Wedge fixing into damp proof course joints H75/65 Wedge-fixing into joints/ Chases H75/770 Wedge fixing into joints/ chases H75/780 Wedge fixing into damp proof course joints H92/770 General sealants L10/810 Sealant joints L20/80 Sealant joints L20/820 Sealant joints L40/195 Glass-to-glass jointing – proprietary L40/380 Bead-fixed insulating glass units – solid bedding, outside bead L40/381 Bead-fixed insulating glass units – solid bedding, inside bead L40/57 Bead-fixed insulating glass units – solid bedding, outside bead L40/58 Bead-fixed insulating glass units – solid bedding, inside bead N10/460 Sealant N10/760 Sealant bedding and pointing N10/80 Sealant |
Product range |
Specification data - Silicone construction joint sealants
Standard | To BS EN ISO 11600, BS 5889 Type A, EN 15651-1 and EN 15651-2. |
Material | Neutral cure. |
Class | G-25LM. |
Colour | Black.Brown.Grey.Translucent.Guidance for specification option: Does not contain calcium carbonate filler. White. |
Fire performance | Non-flammable. |
Class | F-EXT-INT-CC to EN 15651-1, G-CC to EN 15651-2 |
Adhesion | Excellent. |
Movement | ±25% (accommodation). |
Chemical resistance | Excellent to dilute acids and alkalis. |
Hardness (shore A) | 8–22 (Transparent); 30–32 (White, Black, Brown and Grey). |
Cure speed | 2-3 mm per 24 hours (+23°C/ 60% RH). |
TensileStrength | 1.1 N/mm² (Transparent); 1.9 N/mm² (White, Black, Brown and Grey). |
UV resistance | Excellent. |
Shrinkage | <5%. |
Specific gravity | 1.01 g/cm³ (Transparent); 1.5 g/cm³ (White, Black, Brown and Grey) approximately. |
VOC content | <5%. |
Curing time | Tack free time: 35 minutes (+23°C/ 50% RH). |
Application temperature range | +5 to +40°C. |
Service temperature range | -50°C to +100°C. |
Sustainability data
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Literature
Silfix U9
Case studies
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