GSA Pro Seal 500 Silicone - 300ml | Charcoal

  • Charcoal Colour
  • Premium Sanitary Silicone
  • Excellent Anti-Mildew Performance
  • Neutral Cure. Non-corrosive to sensitive substates
  • Fast Drying
  • 300ml / 300g per tube
  • Excellent weathering resistance
  • Excellent UV and ozone resistance
  • Premium mould inhibitors

Recommended Uses

GSA Pro Seal 500 is specifically designed for use inwe areas such as laundries, showers, baths and bath tubs. It has excellent adhesion to glass, tiles, metal and sanitary ware.

  • Bathrooms & Kitchens for sealing baths, sinks, toilets, showers, tiles, plumbing fixtures, glass, tiles, etc.
  • Roofs & Gutter.


  • Neutral cure.
  • Premium mould inhibitors.
  • Trade sanitary grade.
  • Excellent adhesion
  • Fast cure
  • Premium weatherproofing.
  • Interior/exterior

GSA Proseal 500 is a one part, 100% oxime, neutral curing adhesive / sealant containing anti-fungicide to prevent mould growth. Weathering and UV resistance is excellent.


It is unaffected by high and low temperatures and its superior physical properties are retained after many years of exposure. It resists mildew when exposed to prolonged hot and humid environments and is suitable for sealing in kitchens, vanities, bathrooms, shower screens and any other wet area applications.

Key Performance

Properties Non Slump Excellent Adhesion Mildew Resistant Excellent UV Resistance One Part Ready To Use 5 Star VOC Compliant Outstanding Weather ability


GSA Proseal 500 has excellent adhesion to glass, ceramics, aluminium, masonry, stone, concrete, most metals and many plastics. It may be used for general glazing and weatherproofing applications including wet areas and humid environments

 Produced: 10 November 2022

 Expires: 10 November 2023