Tru-Swipe is a inexpensive, easy and accurate way to test for oil based or water based paints. Why would you need to know this? Well, water based paint simply does not adhered to new or aged oil based paint. Resulting in adhesion failure, that will leave you with surfaces that have excessive peeling paint and costly remedies. So, CHECK IT BEFORE YOU WRECK IT!
Directions: Lightly swipe the painted surface 3-4 times. A water-based reading will clearly remove paint and show a dulled surface. An oil-based will only be wiped clean.
Each pack contains 3 swabs inside. Sold in units of 2-pack, or a box of 25 packets.