Selleys Pro-Spec Flexi-Seal Roof & Gutter Silicone Sealant is a general purpose translucent sealant. It is a non-acid (neutral) cure, medium modulus silicone sealant and meets most sealing requirements of plumbing, roofing and building tradesmen.



  • Excellent tradesman's grade general purpose sealant.
  • Highly flexible to cope with joint movement
  • Service temperature range –40°C to +150°C
  • Non-corrosive and can be used on a wide variety of materials - pre-testing to confirm adhesion is advised for critical jobs and for plastics
  • When cured is weatherproof and UV resistant

Where can this product be used?

  • Steel and metal roofs
  • Gutters
  • Fencing
  • Wall-cladding 

What materials is this product suitable for?

  • Metal
  • Lead
  • Aluminium
  • Concrete
  • Brick
  • Galvanised surfaces
  • Copper
  • Zinc
  • Rigid PVC
  • Glass
  • Masonry

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

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

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

  1. Ensure surfaces are clean, dry and free of dust, grease, flaking paint and old or crumbling sealant.
  2. Cut tip of cartridge, fit nozzle and cut at 45° angle to desired size before placing in a cartridge gun, such as Selleys Light Speed caulking gun.
  3. Dispense with steady pressure, extruding sealant into joint ahead of nozzle. Ensure sealant makes good contact with surfaces.
  4. Smooth off sealant (within approx. 10 minutes) using a spatula dipped in soapy water, or once cured, trim with a sharp knife.


  • Not recommended as a plug or caulk for burst pipes or rusted guttering
  • Complete painting before applying sealant. Sealant cannot be successfully painted over.
  • Not suitable for aquariums or potable water containers
  • Not recommended for structural or "fin" glazing applications
  • Not suitable for seals below water or in areas of high abrasion, e.g. walkways
  • Not for use in contact with bituminous materials

  • Once sealant has cured, it is extremely difficult to remove, and must be abraded off or trimmed with a blade, taking care not to undercut the seal.
  • For a neat professional finish, apply masking tape to either side of the gap before applying sealant.
  • Remove excess sealant immediately with a cloth dampened in mineral turps.
  • Cured sealant can be trimmed with a sharp blade.
  • Avoid undercutting the seal. 



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