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Adheseal N40 neutral cure silicone sealant, 300ml aluminium grey cartridge for high-movement joint sealing in façades, gla...
Adheseal N40 neutral cure silicone sealant, 300ml aluminium grey cartridge for high-movement joint sealing in façades, gla...
Adheseal N40 neutral cure silicone sealant, 300ml aluminium grey cartridge for high-movement joint sealing in façades, gla...
Adheseal N40 neutral cure silicone sealant, 300ml aluminium grey cartridge for high-movement joint sealing in façades, gla...

Adheseal N40 Silicone Sealant Aluminium Grey

Aluminium-grey N40 neutral-cure silicone for metal roofing, gutters, flashings and compatible building joints. UV resistant and flexible with a non-corrosive cure.

Vendor: Adheseal
SKU: SILADN40ALGR/CTG
Availability: Out Of Stock
$6.94
$6.94
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Description  

Adheseal N40 Aluminium Grey is the aluminium-coloured version of the N40 neutral-cure silicone, suited to metal roofing, flashings, gutters and weather-exposed building joints where a grey sealant blends into the finish. It cures to a flexible silicone rubber without the acetic-acid release of acetoxy sealants.

Choose this colour for compatible aluminium, galvanised, Zincalume and Colorbond details. The N40 formulation includes a mould-inhibiting fungicide and accommodates ±25% joint movement.

Typical applications

  • Roofing and flashings: weathersealing compatible sheet-metal laps and junctions.
  • Gutters and downpipes: sealing appropriate metal interfaces.
  • Metal-framed openings: non-structural weatherseals around compatible frames.
  • Wet-area details: flexible silicone seals where an aluminium-grey finish is required.

Prepare sound, clean, dry surfaces and size the joint correctly with backing rod or bond breaker. N40 is non-paintable and is not for structural glazing, mirrors, aquariums, swimming-pool immersion, trafficable joints or polycarbonate. Test stone for staining and copper or brass for discolouration.

Common Questions  

What is the difference with this N40 listing?
This listing is the aluminium-grey colour of Adheseal N40 Silicone Sealant.

Is it suitable for roofing metals?
Yes. It is non-corrosive and suits zincalume, Colourbond, aluminium and galvanised metal.

Can it be used in swimming pools?
No. It is not suitable for continuous underwater applications such as swimming pools.

Can it be painted?
No. Cured N40 silicone is not paintable.

Uses & Benefits  
Neutral-cure aluminium-grey silicone for roofing, plumbing, wet areas and general construction sealing. Non-corrosive oxime cure suits zincalume, Colourbond, aluminium and galvanised metal. Provides greater than 90% elastic recovery and up to ±30% movement capability. Service temperature range is -50°C to +150°C after cure. Contains fungicide to inhibit mould and biological growth in hot, humid environments.
How To Apply  
Apply between 5°C and 40°C to clean, dry surfaces. Concrete must cure for at least 28 days. Design joints at a 2:1 width-to-depth ratio. Internal joints start at 5mm width and depth. External joints start at 10mm width and depth. Maximum joint width is 30mm and maximum depth is 15mm. Use backing rod or release tape to prevent three-sided adhesion. For joints deeper than 10mm use backing rod about 25% larger than the joint width. Use Primer 50A on non-porous substrates and Everflex Supaprime on porous substrates where priming is required. Gun the sealant firmly into both joint faces and tool before a skin forms.
Limitations and Safety Info  
Do not use in totally confined spaces. Do not use for structural glazing, mirror bonding or aquarium applications. Do not use for continuous underwater applications such as swimming pools. Do not use on horizontal walkways or trafficable joints. Do not use on polycarbonate or composite panels. Copper and brass may discolour. Do not paint cured N40. Stain-test natural stone before use. Do not expose curing sealant to solvents or cleaning agents that may affect or discolour it.
Suitable Substrates  
  • Zincalume, Colourbond, aluminium and galvanised metal.
  • Glazed and unglazed ceramic tile, porcelain and enamel.
  • Glass and fibreglass.
  • Timber and laminated kitchen benches.
  • PVC and other compatible common building surfaces.

Adheseal N40 Silicone Sealant Aluminium Grey Physical Properties

Adheseal N40 Silicone Sealant Aluminium Grey Physical Properties
Property Value
Curing System Oxime
Density 1.03 g/cm3 (translucent)
Shore A Hardness 20
Elongation 300%
Application Temperature +5°C to +35°C
Temperature Resistance -50°C to +150°C
Movement Capability ±25%
Elastic Recovery >90%
VOC Content 43 g/L
Skin Time 20 minutes
Cure Rate 2mm per day (at 25°C & 50% humidity)
Specific Gravity Trans 1.03
Storage Conditions 10ºC and 35ºC
Fire Performance Smoke Developed Index of 0-1.
Shelf Life 18-24 months in original packaging
Clean Up Uncured: white spirit or turpentine

Adheseal N40 Silicone Sealant Aluminium Grey - Use Cases

Here are some common examples on where Adheseal N40 Silicone Sealant Aluminium Grey used by our customers.

Roofing

External Metal Weather Sealing

Sealing external joints on roofs, facades, or HVAC ducts using Colorbond, Zincalume, or galvanised steel.

This neutral-curing silicone offers permanent flexibility, UV stability, and non-corrosive adhesion to critical metal substrates.

  • Will not corrode galvanised steel
  • Suitable for permanent UV exposure
  • -50°C to +150°C service
  • ±30% movement capability

Marine

Marine & Vehicle Sealing

Sealing dynamic joints in boat building or vehicle fabrication, requiring temperature stability and flexibility.

Offers high elasticity and temperature resistance, ensuring reliable, waterproof seals in challenging marine and transport environments.

  • Once cured, below-waterline applications
  • ±30% movement capability
  • -50°C to +150°C service
  • Adheres to fibreglass, aluminium, timber

Roofing

Metal Roof Weather Sealing

Sealing penetrations, flashings, and joints on metal roofs exposed to harsh Australian weather.

Offers durable, flexible weatherproofing on common roofing metals without corrosion, maintaining integrity through temperature extremes and UV exposure.

  • Aluminium, Zincalume, Colorbond adhesion
  • Temperature -50°C to +150°C
  • Will not corrode galvanised steel
  • Permanent UV exposure

Marine

Marine Hull & Deck Sealing

Creating flexible, waterproof seals on boat hulls, decks, and marine fittings subject to constant water exposure.

Its cured suitability for below-waterline applications and broad adhesion ensures reliable, flexible waterproofing in demanding marine environments.

  • Once cured, suitable below-waterline
  • Fibreglass, Aluminium, Glass adhesion
  • Movement capability ±30%
  • Temperature -50°C to +150°C

Caulking

Wet Area Perimeter Sealing

Sealing joints in shower walls, floors, or commercial kitchens that need mould resistance.

Its anti-fungal properties and resistance to mould ensure hygienic, durable seals in hot, humid environments, even for food preparation.

  • Inhibits mould growth
  • Safe for food preparation
  • Resists mildew in hot environments
  • ±30% movement capability

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