Yes, I just did it last week. If it's for outdoors, make sure to put 2 to 3 coats of poly on it. I recommend Minwax Helsman Spar Urethane.
Civialian Conservation Corp
I've never tried that as it's not generally done. Staining is usually done before sealing.You'll have to remove the Thompson's before you stain unless it has been long enough that the Thompson's is no longer effective. To test to see if the surface will take stain, spray some water on it. If it beads up, it will not accept a stain.
A coat of shellac can be placed over polyurethane. You should use de-waxed shellac if you plan on placing more polyurethane on in the future.
Yes, both oil and water-based polyurethanes will adhere well to an item coated with acrylic paint. If it is a polyurethane paint, dull the surface prior to painting. If it is a clear. realize that that oil based polyurethane will impart an amber hue while a water based polyurethane is crystal clear and will not affect the color.
Yes, you can.
Polyurethane is usually used over stained or unstained wood to protect it from water and damage. It is a sealer.
Yes, water-based polyurethane can be applied over oil-based polyurethane after proper preparation and sanding.
When applying water-based polyurethane over oil-based polyurethane, the main differences lie in the drying time, odor, and color. Water-based polyurethane dries faster, has a milder odor, and may not yellow as much over time compared to oil-based polyurethane.
No, it is not recommended to apply oil-based polyurethane over water-based polyurethane as they are not compatible and may not adhere properly. It is best to stick with the same type of polyurethane for a consistent and durable finish.
No, it is not recommended to apply oil-based polyurethane over water-based polyurethane as they are not compatible and may not adhere properly. It is best to stick with the same type of polyurethane for a consistent and durable finish.
Yes, you can apply water-based polyurethane over water-based stain for your project.
Yes, you can apply water-based polyurethane over oil-based polyurethane, but it is important to properly prepare the surface and follow the manufacturer's instructions for best results.
No, it is not recommended to apply water-based polyurethane over varnish as they are not compatible finishes. It is best to remove the varnish before applying the water-based polyurethane for a successful finish.
Drying conditions of certain paints and sealers can be critical. Read the directions on the can. Sometimes the manufacturer will specify a certain temperature range and/or humidity level for the paint or sealer to properly dry and harden. You may have exceeded the time range for the polyurethane and it may be best for you to remove the sealer and start over. Make sure it's warm enough and that your humidity level is low enough then the sealer should dry properly. Good luck.
Civialian Conservation Corp
No, it is not recommended to apply water-based polyurethane over oil-based polyurethane as they are not compatible and may not adhere properly. It is best to sand off the existing finish before applying a new one.
Yes, you can stain over water-based polyurethane as long as the polyurethane has fully cured. It is recommended to lightly sand the surface before applying the stain to ensure proper adhesion.