I am trying to install chair rails at my church, attempting to match the old railing, thus I have cut the moulding on my saw using special cutters. I have as expected made gouges in the wood which are very apparent when stained. I decided to use a Tudor brown exterior latex paint on all the wood to minimize visual problems. I would like to now put a gloss urethane on the surface to come close to the original railing. Can urethane be put over the latex?
There are water-based urethanes on the market and you can certainly use them over latex paint as long as the paint is completely dry.
There are also solvent based urethanes available. Again as long as the paint is completely dry you should have no difficulties.
Do remember in either case, if you need to paint over or remove the urethane you will have to sand and prime the surface.
You cannot paint over slightly tacky latex paint with a water based polycyclic finish. You should always wait until the latex paint is thoroughly dry before painting over it.
No, you either need to really rough up the oil paint with fine sand paper, or put a base coat on before you paint with your Latex paint. If you don't your Latex paint won't adhere.
Look at label on can if urethane is oil based it should be fine. Think of it like basic chemistry. Oil and water dont mix, xlene based products are used to strip oil, so if ur using a xlene base over oil thats a no brainer. The urethane I use is a xlene base so I wld never use over oil. Im just not sure if they sell a oilbased urethane so check the labels
Not directly. You will need to use a primer made to adhere to oil and will accept a latex topcoat.
I would use a fine grit like 220 or so.
You cannot paint over slightly tacky latex paint with a water based polycyclic finish. You should always wait until the latex paint is thoroughly dry before painting over it.
The substances in OIL paints will melt styrofoam. Latex paint is fine on it.
No, you either need to really rough up the oil paint with fine sand paper, or put a base coat on before you paint with your Latex paint. If you don't your Latex paint won't adhere.
Look at label on can if urethane is oil based it should be fine. Think of it like basic chemistry. Oil and water dont mix, xlene based products are used to strip oil, so if ur using a xlene base over oil thats a no brainer. The urethane I use is a xlene base so I wld never use over oil. Im just not sure if they sell a oilbased urethane so check the labels
Sure you can!it will work just fine
Not directly. You will need to use a primer made to adhere to oil and will accept a latex topcoat.
Latex paint should be applied in a well-ventilated area. Make sure to open a window or turn a fan on in the room when applying the paint. After a couple of days the smell of the fresh paint will go away. Then it will be fine for the baby.
I would use a fine grit like 220 or so.
Latex paint can be used as a primer but the results may not be what you want. Primer is less expensive than latex paint and has special qualities that create a seal and help the finish layer of paint adhere better. In the long run you will save time and money by using the correct product for the job.
Answer Yes Latex Paint can be used over oil, but the oil paint must have been on your walls not less than 6 months depending on where you live, how humid it is and or how cold your walls are. I say humid because if the weather has been very humid the solvents in the oil paint may not have come out completely and there-fore there will be a reaction between the Oil Paint and the Latex Paint. If on the other hand your walls are cold all of the time the same thing will happen, the solvents in the Oil Paint won't come out and again using latex over Oil Paint won't work. The best method of using Latex Paint over Oil Paint is to wait a year at least. If the Oil Paint was shinny I would recommend that you sand it with fine sandpaper, to dull the shine, and then apply a coat of Latex sealer and then put your finish coats of paint. This method can be reversed and done exactly as written above, but at least a drying time of one year will get you the best results.
If you want to prime it first, latex is fine or oil base by itself. You can probably get by with latex directly on the pipe, but there may be oils or dirt on it that will bleed through.
To effectively sand latex paint for a smooth finish, start by using fine-grit sandpaper (around 220 grit) and sand in a circular motion. Be sure to sand lightly and evenly across the surface to avoid creating uneven patches. After sanding, wipe down the surface with a damp cloth to remove any dust before applying a new coat of paint for a smooth finish.