Quick view Compare Add to Cart NS97 Primer NS97 primer is designed for exterior applications of NAC membranes. This solvent-based primer is non-flammable and may be used in below-grade, on-grade and above-grade applications. The premixed formula requires no thinning and will not re-emulsify. Once... MSRP: Was: Now: $146.20 Quick view Compare Add to Cart Quantity Add to Cart