Silfix® U9

Silfix® U9

Hodgson Sealants

Premium quality, low modulus, alkoxy cure, highly versatile silicone sealant offers superior performance across a wide variety of glazing, industrial and construction applications. Compatible with all major edge sealants for bedding insulating glass units (IGUs).

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Application

  • 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.
  • For 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.
  • For sealing glazing plastics such as polycarbonate.
  • It has good adhesion to glass, timber, metals, brickwork, plastics and concrete and does not normally require a primer.
  • Designed for the professional user.

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 unplasticized 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 for 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.

Applications:

  • 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.
  • For 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.
  • For sealing glazing plastics such as polycarbonate.
  • It has good adhesion to glass, timber, metals, brickwork, plastics and concrete and does not normally require a primer.
  • Designed for the professional user.

General information

Material

Neutral cure silicone

Uniclass 2015

Pr_30_31_76_77 Silicone construction joint sealantsPrimary

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 jointing

H51/630 Sealant movement/ Other 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

L40/380 Bead-fixed insulating glass units

L40/381 Bead-fixed insulating glass units

L40/57 Bead-fixed insulating glass units

L40/58 Bead-fixed insulating glass units

N10/460 Sealant

N10/760 Sealant bedding and pointing

N10/80 Sealant

Specification data - Silicone construction joint sealants

Product Reference

Silfix® U9

Standard

BS 5889 Type A, ISO 11600, EN 15651-1, EN 15651-2

Third-party certification

Consult manufacturer

Material

Neutral cure silicone

Class

F-EXT-INT-CC to EN 15651-1, G-CC to EN 15651-2

Colour

Black

Brown

Grey

Translucent

Does not contain calcium carbonate filler.

White

Fire performance

Consult manufacturer

Standard product features

Technical characteristics:

  • Adhesion: Excellent (See 'Applications' above).
  • Movement accommodation: ±25%.
  • Base technology: Silicone polymer.
  • Chemical resistance: Excellent to dilute acids and alkalis.
  • Curing system: Neutral cure (liberates methanol).
  • Hardness: Shore A: 18–22 (Transparent), 30–32 (White/ Black/ Brown/ Grey).
  • Curing rate: 2-3 mm per 24 hours (23°C/ 60% RH).
  • Tensile strength: 1.1 N/mm² (Transparent), 1.9 N/mm² (White/ Black/ Brown/ Grey).
  • Slump: Nil.
  • UV resistance: Excellent.
  • Shrinkage: <5%.
  • Specific gravity: 1.01 g/cm³ (Transparent), 1.5 g/cm³ (White/ Black/ Brown/ Grey) approximately.
  • Staining: Nil on most surfaces.
  • Volatile content: <5%.
  • Tack free time: 35 minutes (23°C/ 50% RH).
  • Application temperature range: 5–40°C.
  • Service temperature range: -50°C to +100°C.

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