Is it safe to assume that whatever paint doesn't come off the siding
with a high-pressure jet of water is OK to leave in place and paint over
-- with primer first, of course?

Or does it still need a good scraping and/or wire-brushing?

Perce

Steve wrote in
.128:

"Percival P. Cassidy" wrote in
:

Is it safe to assume that whatever paint doesn't come off the siding
with a high-pressure jet of water is OK to leave in place and paint
over -- with primer first, of course?

Or does it still need a good scraping and/or wire-brushing?

It needs scraping. I just power-washed a wall. and only part of the
loose paint came off. A ton more came off with the scraper.

If you use the power washer enough to get _all_ the loose paint off,
you'll damage the wood.

Note: Wait a few days before priming to let the wood dry out.


Absolutely ditto to what Steve said.