Spot Block Stain Eraser Is A Unique Spot Stain Removal Chalk!
Spot Block Stain Eraser dissolves metal and organic stains from underwater surfaces. This product is ideal for removing the waterline scum mark or any other underwater spot stains. Spot Block Stain Eraser is a blend of special acids and chelating agents with block technology.
Simple rub on powerful chalk
Removes calcium scum line
Removes organic and metal stains
Directions For Use:
Use a criss-cross pattern to build up a thin layer of product over
Check stain after 24 hours and reapply if necessary; severe or old stains may require several treatments
When finished place product in a safe place away from children to dry before putting it back into the container