It isn’t okay to use a water base over an oil. Doing so will create bonding issues. The most important question here is, what are you staining and where is it? Is it a horizonal or vertical surface? Is it inside or outside? These questions need to be addressed before staining to acquire the right product for the job.
Okay 1st..yes they do make water based stains..here is a link on that. http://www.minwax.com/products/woodstain/waterbased-direct.cfm
Since a stain is a penetrative material and not a surface coating..Water based materials WILL adhere to an oil based stain…they will not adhere to a stain that has a sealer built into it though..it has to be a stain that has no sealer or surface gloss to it…
Q: Can you put latex over oil?
A: Yes. Latex stains or paints can be used to recoat over an oil. It is very important, however, to do excellent surface preparation, which includes scuff sanding any glossy areas, removing any loose or flaking paint and cleaning all the dirt and contaminants off the surface. If the existing oil stain or paint is tightly adhering and in good condition, the latex can be applied without a primer. If bare surfaces are showing, a primer is required..this comes from this site.. http://www.olympic.com/stain_questions_tips.htm
This is copied from the link below…
Application of General Finishes Water Based Top Coats
If you are applying Water Based Top Coat over an oil based stain, allow the oil stain to dry a minimum of 48 hours under ideal conditions.
Water based top Coats are milky white in the can, but will dry to a crystal clear finish. Stir contents well to insure that all the ingredients are mixed together.
Apply with a foam brush, latex paint pad applicator, or by spraying.
Apply Top Coats liberally using smooth even strokes working in the direction of the grain. Use enough material to provide a wet film. Do not over brush! Top Coats self level beautifully.
Top Coats have “burn in” characteristics and may slightly lift some of the color during the application of the first coat (particularly red colors).
On most projects three or four coats of Top Coat is just right. On projects receiving extra wear such as table and desk tops, additional coats will add more protection. Tip: use our High Performance Polyurethane for even more durability. http://generalfinishes.com/tips/waterbase-finishing-tips/waterbase-tips.htm
Make sure to “STIR” a polyurethane gently and do not “SHAKE”..this will make your finish bubble
It isn’t okay to use a water base over an oil. Doing so will create bonding issues. The most important question here is, what are you staining and where is it? Is it a horizonal or vertical surface? Is it inside or outside? These questions need to be addressed before staining to acquire the right product for the job.
Okay 1st..yes they do make water based stains..here is a link on that.
http://www.minwax.com/products/woodstain/waterbased-direct.cfm
Since a stain is a penetrative material and not a surface coating..Water based materials WILL adhere to an oil based stain…they will not adhere to a stain that has a sealer built into it though..it has to be a stain that has no sealer or surface gloss to it…
Q: Can you put latex over oil?
A: Yes. Latex stains or paints can be used to recoat over an oil. It is very important, however, to do excellent surface preparation, which includes scuff sanding any glossy areas, removing any loose or flaking paint and cleaning all the dirt and contaminants off the surface. If the existing oil stain or paint is tightly adhering and in good condition, the latex can be applied without a primer. If bare surfaces are showing, a primer is required..this comes from this site..
http://www.olympic.com/stain_questions_tips.htm
This is copied from the link below…
Application of General Finishes Water Based Top Coats
If you are applying Water Based Top Coat over an oil based stain, allow the oil stain to dry a minimum of 48 hours under ideal conditions.
Water based top Coats are milky white in the can, but will dry to a crystal clear finish. Stir contents well to insure that all the ingredients are mixed together.
Apply with a foam brush, latex paint pad applicator, or by spraying.
Apply Top Coats liberally using smooth even strokes working in the direction of the grain. Use enough material to provide a wet film. Do not over brush! Top Coats self level beautifully.
Top Coats have “burn in” characteristics and may slightly lift some of the color during the application of the first coat (particularly red colors).
On most projects three or four coats of Top Coat is just right. On projects receiving extra wear such as table and desk tops, additional coats will add more protection. Tip: use our High Performance Polyurethane for even more durability.
http://generalfinishes.com/tips/waterbase-finishing-tips/waterbase-tips.htm
Make sure to “STIR” a polyurethane gently and do not “SHAKE”..this will make your finish bubble