In article ws.net,
:::Jerry:::: wrote:
Traditional painting uses a three coat system: primer, to prepare an
unpainted surface to receive paint; undercoat, to build up the colour;
and top coat, to provide protection to the whole. Modern paints tend
to be one coat paints, which achieve colour build and protection in
the same paint.


Err not IME, totally wrong about one coat paint, you still need to use
undercoat (if not primer) were the surface has not been painted before
or the paint has been removed, 'one coat' paint is for final top coat
/ *re-finishing*.

Don't think anyone is disputing you still need a primer on a bare surface.
It's the undercoat which may be dispensable.

--
*Geeks shall inherit the earth *

Dave Plowman London SW
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