Re: Clean ext. wall before painting?

On Fri, 31 Oct 2008 13:09:51 +0000 (UTC), "SteveBell"
<respond@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:

Norminn wrote:

apn96970@xxxxxxxxxxxx wrote:

I'm about to re-paint a garage with same color --BM Navajo white.

It's kinda messed up, with bald patches where I had adhered those
little round discs that held vines.

Question: Should I hose it down with *** 'n Span (and thorough
rinse) before painting? Or superfluous?

Brush with a little SnS and some bleach, rinse. Scrape loose paint.
Let dry well.

* Sand the spots where the discs were so they don't show through the
new paint.
* Caulk where needed.
* I would use TSP (trisodium phosphate) instead of *** 'n Span. SnS
might not wash off completely.

Thanks to all for suggestions.

I forgot to mention that this wall has plants, up to 3' tall, growing
right up against it. PITA to jam plastic back behind the plants, but
gotta do it.

Question: Between the two suggestions for cleaning:

1. *** 'n Span + bleach, then rinse

or

2. TSP , then rinse
(I understood TSP needed very thorough rinsing as well. T/F?)

Which would be LESS damaging to the poor lil' plants? There
is bound to be runoff; plastic won't protect entirely.

TIA
.

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