Primers, Sealers and Undercoats

Regardless of the surface being painted, preparing the surface adequately is critical to any project.  Equally important as surface preparation is the application of the first coat.

Knowing whether you need a primer or sealer and whether you should follow with an undercoat before top coating, is one of the most important considerations you will make when undertaking any painting project. It is critical that you understand what the surface requirements are.

If you are uncertain about the surfaces you are planning to paint or, are simply looking for more information, see our paint solutions section or contact us for professional advice and assistance.

Sealers

Designed to penetrate and bind previously painted surfaces in poor condition, before overcoating with emulsion paints.

 Sparcolux Paints 5L bucket

BONDING LIQUID

Pre-treatment for badly weathered, old,  cracked cementitious surfaces or lime washed or distempered surfaces. See our section on surface preparation.

This product is also suitable as a sealer on porous surfaces which are dry.

 Sparcolux Paints 5L bucket

PVA EMULSION SEALER

A transparent, water based sealer for new, dry plaster and concrete surfaces and can be used as a dust suppressant on large scale concrete floors, typically found in industrial environments.

Primers

Ideal as the first coat on unpainted surfaces, primers offer excellent adhesion and filling properties, laying an ideal surface for subsequent coats.

 Sparcolux Paints 5L bucket

PINK WOOD PRIMER

Traditional primer for use on new and unpainted hard and soft wood, providing excellent penetration and adhesion and serves as a good surface for subsequent coats.

 Sparcolux Paints 5L bucket

ZINC CHROMATE PRIMER

High quality corrosion resistant metal primer, for use on structural steel work. Not for use on galvanised surfaces. This product gives an excellent primed surface for topcoating and comes in yellow and green.

 Sparcolux Paints 5L bucket

ALKALI RESISTANT PRIMER

A quick drying white pigmented sealer which is resistant to dry moderately alkaline masonry surfaces, for use on new plaster, concrete and all masonry surfaces.

Results in a semi-matt surface which provides a suitable base for overpainting with either a solvent or water based undercoat.

 Sparcolux Paints 5L bucket

GALVANISED IRON PRIMER

An anti-corrosive primer for application to new and unpainted galvanised iron and ferrous metal following surface preparation.

Provides an excellent primed surface for topcoating directly with Sparcolux Roof Paint.

 Sparcolux Paints 5L bucket

SINGLE PACK ETCH PRIMER

A fast drying protective primer for manually or blast cleaned steel that offers excellent corrosion resistance and is an ideal surface for subsequent coatings.

This product comes in the following colours: Red Oxide, Black, Grey

 Sparcolux Paints 5L bucket

VINYL TWIN-PACK ETCH PRIMER

A twin-pack vinyl wash primer for pre-treatment of aluminium and galvanised iron.

Undercoats

Undercoats provide good adhesion between primers and topcoats and are designed to provide a smooth surface and good covering.

 Sparcolux Paints 5L bucket

UNIVERSAL UNDERCOAT

An all purpose undercoat recommended for interior and exterior surfaces, providing excellent adhesion on all properly primed or sealed surfaces.