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Hi Thiggy!!
Posted by Faron79 on April 17th, 2008 12:08 AM
In reply to Paint Prep by thiggy on April 16th, 2008 11:28 PM [Go to top of thread]
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Moderator Post (s) for this thread:
> Paint Prep by thiggy on 04/16/2008 |
Sorry about the difficulties you're having!
Yes, chalking paint can ruin the adhesion of even top-notch primers, etc.
* Try the P/W on some of it, to see how easily the paint will come off.
* Zinsser's Jomax cleaner is decent for exteriors.
* Pump-spray the Jomax on the house...from the bottom-up.
* Usually, bad chalking needs to be scrubbed-off...probably with a long wand, like a car-washing pole.
* Scrub from bottom-up too!
* Now you can haul out the pressure-washer!!
* Don't have pressure too high (less than 1,000 psi!!), or you're destroying the substrate; and keep the tip a foor away.
* Drytime...hmmmm...you're driving water into wall...probably a WEEK or more!!
* Rinse from top-down.
Finally ready for a top-notch primer!!!
* Buy the best Exterior Latex you can find...C2 Exterior, ACE-Royal, Good-'ol 123, etc.
* Same thing with the Topcoats...THE BEST LATEX you can afford. Don't spend under $20/gal.
* 2 FULL COATS...nothing less.
* This may raise some eyebrows, but I'd use a Satin-sheen for the main body. Flats hold dirt too easily, especially on Stucco.
Good luck Buddy!
Keep us posted...
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