Surface Application

Typical Surfaces for Insultec Application

Surface Type Primer / Preparation Required Before Applying Insultec
New Colorbond® / Galvanised Steel Suitable etch primer or metal primer recommended prior to application
Previously Painted Metal Roofs Clean thoroughly and ensure existing coating is sound and well adhered. Insulprime may be suitable
Concrete Roof Tiles Insulprime recommended after cleaning and preparation
Terracotta Roof Tiles Suitable tile primer/sealer recommended prior to application
Concrete Walls & Masonry Masonry sealer or Insulprime recommended
Rendered Surfaces Sealer/primer recommended depending on porosity and condition
Fibre Cement Sheeting Suitable acrylic primer/sealer recommended
Brickwork Masonry sealer or suitable penetrating primer recommended
Shipping Containers Etch primer recommended where bare metal is exposed
Steel Structures Industrial metal primer or anti-corrosion primer recommended
Tanks & Storage Vessels Surface-specific industrial primer recommended depending on substrate
Timber Surfaces Suitable timber primer/sealer required before application
Plasterboard/Internal Walls Acrylic sealer undercoat recommended
Existing Waterproof Membranes Compatibility testing and inspection required prior to application
Asphalt or Bitumen Surfaces Specialised bonding primer may be required
Marine or Coastal Structures

Important notes

  • All surfaces must be clean, dry, and free from loose material, oil, grease, mould, or contaminants before application.
  • Moisture content should be checked on porous surfaces prior to coating.
  • Glossy or previously painted surfaces may require sanding or mechanical preparation.
  • Primer selection may vary depending on substrate condition, environment, and project requirements.
  • Insultec can assist in recommending the most suitable primer system for specific projects and substrates.