1 base colourTriangle Paints range
Paint Primers & Undercoats for Prepared Surfaces
Triangle Paints primers and undercoat prepare specific surfaces for compatible finishing systems. Choose according to whether the project involves interior masonry, exterior masonry, wood or metal—not by primer name alone.
03 productsProducts in this range
Choose from 3 products.
Select a product for detailed usage guidance, requested colours and direct WhatsApp purchasing.
3 products shown
Practical buying guide
Which primer should you use before painting?
Interior walls
Interior Primer is the base coat in this range for preparing interior walls before compatible emulsion. The wall should first be sound, clean, repaired and adequately dry.
Explore interior paintsExterior walls
Exterior Primer is intended as a preparatory base coat for exterior wall systems. Correct moisture entry and unsound masonry before choosing the primer and finish.
Explore exterior paintsWood and metal
Undercoat is the intermediate preparation product listed for compatible enamel systems on wood and metal. Confirm the complete preparation, primer, thinner and enamel system for the surface.
Explore enamel paintsNeed help choosing? Read Primer vs Wall Putty
Questions answered
Common questions about primers & undercoats
Which primer should I use before wall paint?
Use a primer suited to the surface and exposure: Triangle Interior Primer for an appropriate interior wall system or Exterior Primer for an appropriate exterior wall system. Surface condition can change the required preparation, so confirm before application.
Does every previously painted wall need primer?
Not necessarily. The need depends on adhesion, repairs, porosity, staining and the existing coating. Inspect the surface and ask Triangle Paints to confirm the compatible system.
Is undercoat the same as wall primer?
Not in this catalogue. Undercoat is listed for compatible wood and metal enamel systems, while Interior Primer and Exterior Primer are listed for their respective wall systems.
Need help choosing?
Start with the surface,
not just the finish.
Share whether the project is interior or exterior, the current wall condition and your city. We’ll help identify the appropriate product system.
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