Expert advice

What preparation is needed? (Varnishes)

If you’re applying over an existing varnish, ensure the surface is sound, if not the coating should be removed. Test for compatibility. For bare wood, unless you’re using a clear surface primer, such as International Clear Wood Sealer Fast Dry, we recommend thinning the first coat of all our varnishes. This promotes good penetration of the surface and adhesion of subsequent coats. After this first coat, the surface will appear rough – as the exposed ends of the wood absorb the varnish and lift – sand this smooth with a medium grade sandpaper.


Paint your boat like a pro

Find the best products to keep your boat in great condition

Get all the support you need to paint with confidence

Benefit from our continuous innovation and scientific expertise