Sealtite ST-90

Short description

Advanced silicone based water repeller formulation, which effectively waterproofs all types of unpainted masonry surfaces.

Intended Uses

For application to all types of porous surfaces like plaster, concrete, cement surfaces, face bricks, natural and artificial stone, terrazzo, canvas, fibre cement and natural tiles.


  • Type: Preparation, Waterproofing
  • Ranges: SealTite
  • Project: Exterior
  • Available-sizes: 1L, 20L, 5L
  • Guarantee: N/A
  • Share:

Features & benefits

  • Life expectancy: 15 ? 20 years
  • Superior penetrating ability
  • High alkaline resistance
  • Allows substrate to breathe (vapour permeable)
  • Treatment is usual invisible not changing the substrate aspect
  • Improves resistance to dirt pick up, fungal and algae growth
  • Can be over coated with suitable coatings

Product information

  • Type: Modified Silicone Solution
  • Appearance: Liquid
  • Colours: Clear
  • Tint Bases: N/A
  • Solid Approx.: 0.35
  • S G at 23 °C: Approx.: 1,02
  • Flash point:
  • Theoretical spreading rate:
  • Practical spreading rate: The practical spreading rate will vary depending on the porosity and profile of the substrate, as well as the application technique and tools used

Application details

  • Mixing:
  • Method: Brush, roller or spray
  • Thinning: Not recommended - ready for use
  • Cleaning: Turpentine
  • Drying time:
  • Recoating time:
  • Application: Apply a minimum of two coats

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