Eco Primer for Interior & Exterior - Ambient Primer by Graphenstone (L42)

Some walls drink up paint faster than you can roll it on. Bare lime plaster, stone, brick and dusty or chalky surfaces are the usual culprits, and Ambient Primer is the eco fix.

It's a colourless, vapour-open primer and stabiliser that evens out patchy, absorbent surfaces so your topcoat goes on smoothly and holds for the long term. Breathable (Class 1 vapour-open) with trace VOCs under 1 g/l, it works indoors and out, and one coat covers a generous 25 to 30 m² per litre.

Use it as the base coat under Graphenstone's mineral and lime paints: Grafclean natural mineral emulsion, the heritage GCS lime silicate range for interior and exterior walls, and air-purifying Ambient Pro. See the full Graphenstone range to choose your finish.

Application: Shake well and dilute 1:1 with water, then apply one even coat by brush, roller or sprayer onto a clean, sound, dust-free surface, working bottom to top on walls. Touch dry in around 24 hours, then paint as usual. Fresh plaster should be left at least 28 days before priming.