Selleys Roof & Gutter Speed Seal is an advanced, high grade neutral (non-corrosive) cure silicone formulated for fast cure, so that you can have the peace of mind that your roof will be rain ready in just 1 hour#. 


  • Super fast cure and stiff consistency provide a waterproof seal that is rain ready in 1 hour#
  • Non corrosive neutral cure formula.
  • Superior flexibility +/- 25% movement capability
  • Temperature resistance – approximately -60°C +150°C
  • Drinking water safe- complies with Australian Standards AS/NZ4020^
  • UV and weather resistant - guaranteed for 25 years* against cracking, crumbling or peeling away

Where can this product be used?

  • Metal and tiled roofs
  • Colorbond Roofs
  • Guttering and Flashings
  • Vents and Downpipes 

What materials is this product suitable for?

  • Aluminium
  • Sheet metal
  • Copper & brass
  • Rigid PVC
  • Terracotta
  • Concrete
  • Glazed tiles

Please contact your store to confirm avaliability, as some stores may have a limited range.

Size 300g cartridge
Colours Translucent
Technology Neutral Cure Silicone
Use  Interior 

        Use in a well ventilated area. Avoid contact with skin and eyes.

  1. Clean and dry surface using mineral turps.
  2. Cut tip off cartridge and cut nozzle at a 45° angle. Fit nozzle to cartridge. Place cartridge into caulking gun such as Selleys Speed
  3. Hold caulking gun at 45° angle and gun sealant ahead of nozzle ensuring product is pushed into joint. Important: product will skin in 5 minutes.
  4. For a smooth finish, tool with a spatula dipped in soapy water. Clean up before sealant skins in 5 minutes, with a cloth dampened in mineral turps.
  5. Sealant will cure in 72 hours. At this point any unneeded sealant can be removed by trimming with a sharp blade, but avoid under-cutting the seal.


  • Not paintable. Complete painting 7 days prior to applying sealant.
  • Not recommended for use as a plug for burst pipes.
  • Do not use in below waterline applications.
  • Not for Aquariums. We recommend using Selleys Glass Silicone Sealant
  • Not for contact with food or eating utensils


  • For neater joints, mask sides before applying sealant and remove tape before sealant skins.
  • When first applying product, extrude a small amount onto a piece of scrap material to ensure a smooth continuous flow of silicone sealant.
  • For a better finish use a spatula dipped in mineral turps or soapy water to tool off the sealant.
  • Work in sections that can be completed before sealant skins. Tooling off and tape removal must be completed before skinning occurs or a rough surface may result, so working in sections allows for a better finish.


Warranty Information

* Refer to product label for full conditions. This guarantee does not limit and may not necessarily exceed your rights under the Competition and Consumer Act 2010.

Additional Information

#Sealant will have a firm skin and will be waterproof and rainready in 1 hour after application. The semi-cured sealant must not be touched until cured (48 hours).

^Cured sealant at area to volume ratios up to 4000mm2/L



  • Uncured product may be removed with mineral turps.
  • Cured product can be removed with Selleys Silicone Remover or by cutting and scraping.

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