Newton's Premium Stain Blocker Primer/Undercoat – NZ Made

Achieve a flawless, professional finish every time with Newton's Premium Stain Blocker Primer/Undercoat. Made right here in New Zealand, this high-adhesion, water-based primer seals stubborn stains, prevents bleed-through, and creates the perfect base for your top coat — whether you're refreshing walls, trim, or upcycling furniture.

Why Choose Newton's Primer?

• ✔ Outstanding adhesion to aged enamel, varnish, glass, most plastics, walls and timber
• ✔ Helps block oil-based stains — prevents discolouration and bleed-through in most top coats
• ✔ Moss and mould resistant formula
• ✔ No odour — low VOC and earth friendly
• ✔ Fast re-coat times for efficient project completion
• ✔ Excellent gloss retention on top coats
• ✔ Water clean-up — no harsh solvents needed
• ✔ Recommended as an undercoat for Newton's Water Based Enamel(or any water based paints) and Chalk Paint when needed.

Ideal For

Walls, trim, furniture, and a wide variety of surfaces. Perfect for use before Newton's Chalk Paint, Water Based Enamel, or any quality top coat.

TIP: Many of our customers use this as a robust undercoat when painting old furniture with our Chalk Paint — it helps prevent stain bleed-through for a cleaner, longer-lasting result.

Coverage & Application

• Coverage: approx. 7–10m² per litre
• Application: brush, roller, or spray
• Clean-up: water

What Our Customers Say

"Hi Ali — thank you for your phone call on Thursday. I tried the primer/sealer/undercoat today and am thrilled. It is the best water-based product of this type I have ever used and I have been painting furniture and many other things for 45 years. I can't wait for my next pension day to buy your epoxy resin. Awesome trader — trade with confidence — recommend to all!"

Proudly made in NZ. Newton's Paints Ltd — NZ owned and operated. We source and support NZ products and suppliers wherever possible, and are committed to sustainable, earth-friendly formulations.