01:12PM | 06/03/05
Member Since: 06/02/05
1 lifetime posts
I want to paint latex paint over oil based paint. What is the best way to go about doing this? Can I use Kilz over the oil based and then paint with Latex?



03:43AM | 06/04/05
Member Since: 07/28/02
1356 lifetime posts
If this is inside you will want to sand the entire surface lightly and wipe off the sanding dust with a damp cloth. On doors and others areas that are touched by hands you will want to wash thoes areas to remove hand oils. Then you will want to prime with an oil based undercoater which will take up to 18 hours dry time to recoat. Then you can apply your finish coat of a latex/acrylic semi-gloss or gloss enamel. Be sure to buy the premium brand at the paint store as this will be your best value.

Now some information on KILZ. This product is a great stain killer for water damage, smoke from fires and nicotine but not really for good for this type of situation. It dries brittle and if used as a primer over oil based paint on trim work it can chip easier than a slower drying type of primer such as I reccomended. Oh and never ever use it outside.


05:28PM | 06/07/05
Member Since: 10/17/04
54 lifetime posts
Some of the better paint stores have acrylic primers that will stick to both latex and oil paints. The benefit is that it allows for an easy transition from one to the other, and it cleans up with water the same as a latex. I agree that you should definately prepare your walls first though. If it is a glossy area just a scuffing from a fine sandpaper will do. Then wash all the areas with TSP (Tri Sodium Phosphate) This cleaning agent is extremely cheap (comes as a powder that you mix in water)Use it to clean the walls for removal of sanding residue as well as oil and dirt from the environment as well as hand prints. It will help with the adhesion of the primer. I used to work in a paint store which had a brand of paint that was a two in one. It had the primer as well as the paint in the same can. It worked wonderfully. Maybe give your local stores a call and inquire about such a product. Good luck.


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