Get the ultimate performance with our most advanced interior/exterior RUST-OLEUM Zinsser® Smart Prime® primer. This next generation, zero VOC, water-based formula is the one primer you need for every professional or DIY project.
Application: Apply only when air, material, and surface temperatures are between 50-90ºF (10-32ºC) and the relative humidity is below 85%. Substrate moisture should not exceed 12%. Thoroughly mix to ensure any settled pigment is redispersed before using. In most cases only one coat is necessary to prime most surfaces. If excessive absorption occurs over very porous substrates a second coat may be necessary.
Spot priming is recommended only under high hiding topcoat finishes. For best results, prime entire surface before painting. Keep container closed when not in use. Apply with a synthetic (nylon, polyester or blend) bristle brush, roller, or airless sprayer.
Follow manufacturer's instructions when using spray equipment. For airless spraying use a .017"" tip at 2000 to 2500 psi. If a conventional sprayer is used, spray at 50-60 psi. Wear NIOSH approved respirator and provide adequate ventilation.
Dry Time: Dries to the touch in 30 minutes, can be recoated in 1 hour.
The primer film develops full adhesion and hardness after it cures in 7 days. Lower temperatures, higher humidity, and the addition of tint will prolong dry and cure time. Allow more time at cooler temperatures.