This is our Big Blu Leak Detector conveniently down sized into an 8 ounce container. We've added a user friendly handle onto the cap which houses a 9" telescopic dauber. The dauber material is made of soft acrylic fibers which transfers a flat liquid free of any counter indicating bubbles or foam.

Brush on Blu has the same outstanding leak detection properties of our Big Blu solution, and has a viscoelastic viscosity our competitors can't match.