Unfortunately this will be difficult at best. Both are plastics. Spray foam is very tenacious. It bonds really well to most things (including tubs). That said; I have been successful at removing overspray from many surfaces over the last 20+ years.
Now, depending on the level of overspray, you might be satisfied with the results achieved using a 3-M Clay Block and their clear liquid spray polish.
Use a soft rag and liquid polish to gently remove the foam splatters. Spritz' the area with polish and "Gently" start rubbing the area with the clay block. This will produce decent results.
IF the damage is worse, or you are still plagued with "Spots", then your next approach (much more aggressive) may be needed.
Once you have clay blocked the area, use 1200-1600 grit "Wet" sand paper with cloth backing. VERY GENTLY, with the liquid polish; wet the surface and sand the affected area. Follow this process with a polishing compound. Like that from DuPont.
Remember; doing any of the above could make the tub look much better. If you still aren't satisfied; There are people that can Re- gel coat the finish. That process may cost as much as a tub, but may be cheaper than the cost to R/R it.
Good luck.
Dave
Liquid Nails
The different types of nail enhancements include acrylic nails, gel nails, dip powder nails, and silk or fiberglass wraps. Acrylic nails are made from a liquid and powder mixture, gel nails are cured under UV light, dip powder nails involve dipping the nails into a powder and adhesive mixture, and silk or fiberglass wraps are used to strengthen natural nails.
use aliqid nail remover
dish washing liquid you need to use a lot
Ammonia poured in-between the seams should dissolve the liquid nails.
To remove Liquid Nails from Sheetrock, use a putty knife to gently scrape off the residue. You can also try using a heat gun or hairdryer to soften the adhesive before scraping it off. Be cautious not to damage the Sheetrock while removing the Liquid Nails.
No, Liquid Nails will not stick to joint compound
To effectively remove Liquid Nails from a surface, you can use a combination of heat, solvent, and scraping. Apply heat to soften the adhesive, then use a solvent like acetone or mineral spirits to break it down. Finally, scrape off the softened adhesive with a putty knife or scraper.
Yes, Liquid Nails is designed to work on concrete surfaces.
I read this on another forum somewhere: Try using a small piece of fishing line, tie the ends around something, not your fingers, and use it like dental floss. Put the fishing line on the marble surface and try "cutting" the liquid nails like that, to remove it from the marble. Also you might try to apply a small amount of heat with a hair dryer. Liquid nails makes a "remover" product, which may or may not work on marble:http://paint-and-supplies.hardwarestore.com/50-278-adhesive-caulk-removers/liquid-nails-adhesive-and-caulk-remover-103697.aspx In general, the following warning probably applies to all Liquid Nails adhesives:Product may stain marble and granite.http://www.liquidnails.com/products/product.jsp?productId=48 Might need to search for tips on how to cover/mask/remove stains on marble...
Me
Yes, Liquid Nails can effectively adhere to concrete surfaces.