My Grilfriend put Oil-Based Kilz Primer Over Latex Paint

[On the Road]

by mistake and bought a five-gallon conatiner of latex semi-gloss to put over the Kilz. The new container is already open.

Will the latex semi-gloss peel off the Kilz? Is there an additive like linseed oil that will make the paint stick better? Or should she just bite the bullet and buy oil-based interior paint?

[eleny]

1. Some thoughts

Our contractor always suggested we use oil based Kilz for various coverage problems. He never told us we'd have to use oil based paint on top.

Here's a site that talks about using primers. It points out that it's important to allow several days for the primer to cure before painting. I never knew this. The site also doesn't advise that oil paint must go over oil primer. http://thatpaintguy.tv/docs/dtime50.htm

[On the Road]

2. Thanks -- That's a Relief

I did my own search and came up with the following:

By and large, solvent-thinned primer systems are used for solvent-thinned topcoats, and latex primers for latex topcoats. Although this is the general rule, there are exceptions: Oil/alkyd primers are still the most popular universal choice. They may be topcoated with either a latex or oil based finish. Latex primers also may be topcoated with either latex or oil based topcoats.

Why two primers? Both have their own distinct advantages. The oil based primers are much better in checking tannin bleeding on redwood, cedar and other high extractive type woods. Since these tannins are water soluble, latex products have a hard time stopping this bleed in severe cases. Our latex primers are specially formulated with a blend of resins to help check tannin staining.

http://www.goldenglowpaints.com/Articles/ProductArticles/HPPRIMER.htm

I learned something.

[Pathwalker]

3. I have always been told by professional painters

that the whole point of using Kilz, etc. was to avoid problems with what was on your wall before, and what you want to use. If you have a problem with this, then I am in DEEP trouble, because I did the same thing with the walls and ceilings of my hallway and my kitchen. Three months later, it still looks great. How long before the problem should start?

[Stinky The Clown]

4. No need to worry ...... Kilz is just fine the way you used it

Kilz is virtually impervious/inert and will not be affected by whatever is the coat under it or above it.

[Pathwalker]

5. Whew! Thanks - it looks great now, but I was worried

that it might crackle. So, the pros were right.

[AlCzervik]

6. open the windows when using kilz, it works really well

but it stinks.

[Pathwalker]

7. The latex version smells like ammonia - blech!

So ventilation is very necessary!