500ml Tin, Plasti Dip sticks to just about anything, and on most surfaces bonds permanently. However, as with any coating, primed surfaces are always best, and for this reason using Plasti Dip Primer can increase adhesion to most surfaces by up to 400%. Plastidip PRIMER can be sprayed, dipped or brushed, and offers fast set up time with a high coverage rate. Typically applied in one coat, only extreme corrosion and abrasion require a second or third coat, eliminating extensive preparation for most applications. Plasti Dip Primer is recommended on most non-absorbent surfaces, especially galvanized metal, to prevent peeling of Plasti Dip. For best results apply Plasti Dip over plastidip Primer as soon as it is dry to the touch. Plasti Dip Primer is not recommended for use as a protective coating on its own