Wait a few minutes then try to remove the screws.
How to remove rust from floor drain.
Remove rust stains from brick or concrete.
This video shows you how to remove stuck tub drains.
If the screws that hold the drain cover in place are rusted spray them with rust solvent or apply penetrating oil.
Rusted garage floor drain hi fireguy the pipe is plastic with about 1 8 inch clearance between the top few inches of the pipe and the cast iron drain cover that surrounds it.
Many times when you are trying to remove a tub drain assembly with a pop up drain to install a new tub.
Spray the seam between the plug and the inside of the cast iron pipe.
Create a paste of 7 parts lime free glycerine 1 part sodium citrate available from drug stores 6 parts lukewarm water and enough powdered calcium carbonate chalk to create a thick paste.
Allow the penetrating lubricant to work for 30 minutes.
Drain all the water from the tub then sprinkle salt on the drain.
If the entire cover is rusted to the drain use a flat head screwdriver to scrape around the edge of the cover and remove as much rust as you can then tap round the edge with a hammer to try to loosen the cover.
Step 1 spray the perimeter of the cast iron clean out plug with penetrating lubricant.
Step 1 spray around the rim of the floor drain cover with an all purpose lubricant spray.
Spread the paste over the rust stained area and leave it to harden.
Dissolve surface rust with salt and lime juice.
With the use of simple supplies you can remove a rusted drain cover and attend to the task at hand.
Cover the salt with enough lime juice to moisten it but not enough to wash it.