Removes the remnants of freshly applied pur foam. PUR FOAM CLEANER is an excellent tool for cleaning gun applicators after work. PUR FOAM CLEANER can also be used to clean other items contaminated with as yet uncleaned foam. To do this, place the spray adapter on the bottle. due to its ability to dissolve. Dual application: cleaning the inside of the gun barrel and cleaning the outside of the gun and other items with the help of a spray adapter