Again, WHY, the Peel Stop???

Sorry, Christoph, I didn't realize you wanted to know about that. My walls have flaking paint. The place is about 40 years old and paint has started flaking off down to the bare drywall. There is poor adhesion with the first coat which was probably cheap unprimed builder's flat.

Is there some reason you would not use it?

Well, personally,I would want to figure out why the paint is peeling and remove all that was, skim the walls and start over, but, you should be fine. I would use a 1/2 in nap.

Only reason seems to be that it was cheap builder's flat over nonprimed, ie, poor paint job the first time around. We haven't found any moisture problems. Flaking areas are scraped and those areas skimmed to smooth the surface again.

Why 1/2 nap? Do you mean for the Peel Stop? Is a thin coat sufficient, 1/4 nap in some areas already done (not big rooms just closets and the bathroom).

snookums-I've been following this thread as I have a room with similar constraints. Reading on pro paint forums, one repeat warning is to get it on (two hour drying time) and follow with your true color paint faster than usual, i.e., not usual luxury in time to painting schedule. One pro emphasized UV light as possibly breaking it down quickly if using it exteriorly but your using it interiorly.

So, perhaps the 1/2" nap roller is to speed the Zinsser Peel Stop application process in general for that drying window.

They should be open today. I'll have to give a call. It didn't occur to me actually fast until I read some primers say 2 days. I wanted to get started while picking a paint color but planning on painting very soon, just not N-O-W.

He said 30 days for both Gardz and Peel Stop. Darn I should have asked about the roller nap! Loooong hold time.

He said 3/8" roller for the primers but it should be ok if I can see a shiny coat of primer. If I see any dull marks, put on a little more. I think I'll leave what I've done alone with only the one thin coat but change over to 3/8" for the rooms. 3/8" back rolled with a 1/4" for finer texture is also fine.

I use a 1/2 for most everything, it gets more product on the wall

I will check the texture out of the 1/2 inch. More product is a good thing.