I need to get a sample of some drywall joint compound for asbestos testing in a house I'm renovating. I pulled away some of the base boards in the corner and found something that I believe to be joint compound, but I need someone to verify before I take a sample and send it in.
I'm looking at the tan colored substance by the nail in the corner (I highlighted it in the picture). Is this drywall joint compound?
FYI, we have already had some lab tests done and found asbestos (chrysotile) in the popcorn ceiling in one room and the linoleum flooring in the kitchen (currently covered up by laminate). The abatement company recommended checking the joint compound in the wall.
This substance was indeed drywall joint compound and it did contain asbestos, which is a bummer. Now on to abatement...