MR: CLEAN MAGIC ERSER or a product called CRL. Soaking the block with vinegar may also work.
To remove a dark stain from slump block, try using a mixture of water and mild detergent to gently scrub the area. For more stubborn stains, you can use a mixture of water and vinegar or hydrogen peroxide. Test the solution on a small, inconspicuous area first to ensure it doesn't cause damage.
I assume it's a darker slump block- very difficult block to repair or get stains out, because of it's crumbly nature- I'd say cut it out and replace it- you should have put a preventative stain coating on it- Maybe CLR in a pinch- try all solutions on a hidden place in the block before you put it in a visible area- it depends on what kind of stain you have and which chemical will remove it- is it paint? If it's latex paint it's water based- if it's alcohol based, it's different- if it's oil based, mineral spirits should remove it- but watch if you dilute the stain by cutting with chemicals it that it will spread- some latex paint can be cut off the surface, but don't disfigure the surface of the block -good luck - if it's rust try a solution of CLR in a hidden test place.
water
water
Yes, WD-40 can effectively remove water stains on wood surfaces.
To remove coconut water stains, first soak with cold water for a small amount of time. Then, spray the stain with a stain treatment, then wash in cold water.
Vinegar.
For removing stains, it is best to use cold water. Hot water can set stains into fabric, making them harder to remove. Cold water is gentler on the fabric and can help prevent the stain from spreading or becoming permanent.
Pledge will remove water stains from wood as well as apply a protective layer to help keep new stains from forming.
i suppose your wa shing machine leaves stains as well
You can remove hard water stains from glassware by soaking them in a vinegar and water solution, then scrubbing with a soft sponge. You can also try using a mixture of baking soda and water to scrub away the stains. Additionally, you can use a commercial glass cleaner specifically formulated for hard water stains.
To effectively remove stains from pans, you can try soaking them in a mixture of hot water and baking soda, scrubbing with a paste of baking soda and water, or using a mixture of vinegar and water to soak and scrub the stains. Additionally, using a non-abrasive scrubbing pad or brush can help remove tough stains without damaging the pan.