To achieve a Matt finish on polyurethane you must sand it with a grade p400 average particle size in microns(in inches) .00137. this will defuse the light rather than reflect the light. you can always use a matting solution such as turps but it can get very messy and sticky if you don't know what you are doing.
Bleach
Often, poly will not adhere due to contaminants on the surface. Remove all of the loose coating, sand the surface, brush off the surface with a brush, then remove the remainder the dust with a tack cloth.
You don't. You will most likely have to restain after stripping.
Yes, that was the original intention of urethane.
You can remove stains or blemishes from a polyurethane watch by scrubbing it with a wet terrycloth that has been dipped in a solution of warm water and liquid dish soap. For tough stains, dip a melamine foam sponge into the solution, ring out and wipe the watch gently. Dry well with a clean towel.
how to remove polyurethane from a brass bed
Bleach
flooring
Say it was high gloss, if the wood soaks it in deep and you only put two thin coats on it will not shine like it should. Because it should shine a lot. Can depend on how much gets absorbed by the wood.
You can remove polyurethane from fabric by scraping off the excess using a rubber scraper. Use the blade of a sharp knife to further remove the top layer of polyurethane. Then, apply acetone to the stain and allow it to work for 10 minutes before rinsing the fabric with water. If the fabric is white, soak it in bleach and water for 30 minutes, then wash as usual.
Often, poly will not adhere due to contaminants on the surface. Remove all of the loose coating, sand the surface, brush off the surface with a brush, then remove the remainder the dust with a tack cloth.
Remove and absorb excess oil or just wash your face more with a shine removing soap or you can get the shine removing sheets.
Call them..
You don't. You will most likely have to restain after stripping.
Polyurethane can be recycled.
Mineral spirits can be used to remove a polyurethane spill on your stainless steel refrigerator. Simply dampen an old rag with some mineral spirits and rub the affected area. Wipe away any residue with a clean, damp cloth.
dampen a rag with lighter fluid or mineral spirits. no you wont remove the polyurethane, its dry. but it will however remove the glue with no problem or blemishes in your poly.