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Pro-Spec Flexi-Seal Roof & Gutter Silicone Sealant 300g - Clear

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Availability: In stock


RRP: $8.91

Save: $1.10
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Quick Overview

Pro-Spec Flexi Seal Roof & Gutter Silicone Sealant is a general purpose translucent silicone sealant suitable for metal, aluminium, galvanised iron, copper, brass, zinc, rigid PVC, glass and masonry.

Pro-Spec Flexi Seal Roof & Gutter is non-acid (neutral) cure, medium modulus silicone sealant. This means it will not attack zinc or zinc-containing metals or cementious surfaces. (Note: acid releasing silicone sealants attack these surfaces, which leads to poor adhesion).

This product meets most sealing requirements of plumbing, roofing and building tradesmen.

Pro-Spec Flexi Seal Roof & Gutter has joint movement capabilities ±15% of original joint width. When applied in properly designed joint.

This product's service temperature is –40ºC to +150ºC.


Materials this product is used on

  • Steel
  • Metal roofing and guttering
  • Wall cladding
  • Lead
  • Aluminium
  • Concrete
  • Brick
  • Masonry
  • Rigid PVC
  • Copper
  • Zinc
  • Galvanised surfaces
  • Certain plastics (pretest)

How to use product

  • Ensure surfaces are clean, dry and totally free of oil, soap, grease, dust, old sealants, release agents and loose material.
  • Apply masking tape to either side of the joint where the contact with sealant is not required to get clean straight edges.
  • Cut blind seal of Pro-Spec Flexi Seal Roof & Gutter cartridge and fit nozzle.
  • Trim end on nozzle to obtain correct bead width and use with standard cartridge gun.
  • Dispense with steady trigger pressure.
  • Hold cartridge gun at a 45° angle, extruding sealant into joint ahead of nozzle.
  • Ensure sealant makes good contact with surfaces.
  • Smooth off sealant to required finish (within 6-8mins) using a spatulua dipped in mixture of detergent and water.
  • Then peel off masking tape after joint is filled.
  • Once cured, trim with a sharpe knife.
  • Clean tools with mineral turps before sealant dries.
  • Will cure fully within 24hrs

Not recommended for

  • Using as a plug or caulk for burst pipes or rusted guttering
  • Complete painting before applying sealant. Sealant can not be successfully painted over.
  • Aquariums or potable water containers
  • Structural or "fin" glazing applications
  • Seals below water or in areas of high abrasion, e.g. walkways
  • For use in contact with bituminous materials



15 metres of a 5mm bead

Additional Information

SKU 999605
Type No
Brand Pro-spec

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