cleaningspray-foam
After closing a gap in my kitchen using expansion foam I got residue left on my cupboard.
I have tried rinsing it off with water and mineral turpentine but no luck!
I'm hesitant scraping it off with a blade since it will damage with cupboard.
What substance / chemical can get rid of it?
Product in question:
https://www.bunnings.com.au/sika-850ml-sika-boom-expanding-foam_p1210302
Without looking, I think most of these adhesive foams dissolve with acetone. The first thing I'd try would be nail polish remover, or possibly Goof Off.
Cheap masks are for debris not chemical inhalants, you'll need a respirator. One-component Cans only require fan ventilation. *See page 15 of referenced link.
If you not actually spraying it you might get by without a suit but due to some prep and finish work required, wear gloves.
Dependent on the laws in your county, but most require >15% flame retardants be put in and it shouldn't reach a combustible heat for anything except dust and maybe some feces.
If you are pouring it in, it takes more effort but is safer you can buy 2 part polyurethane foam mixes, it the same foam but with less additives. I actually can't use spray foam due to building code regulations but I can use the mix-and-pour kind.
Picture and tons of helpful information on spray foam can be found here: http://spraypolyurethane.org/Workbook
Best Answer
Use chlorinated brake cleaner typically sold in an auto parts store.