TIE-COAT PRIMER 

Tie-Coat Primer is a very tough and sandable, non-moisture sensitive single-component polyurethane primer. It contains hybrid polymeric resins which have excellent adhesion characteristics to most painted surfaces, especially that of POR-15, because we have matched and blended the isocyanate resin components of both coatings to make them fully compatible. Tie-Coat Primer is highly resistant to penetrating topcoats such as enamels, lacquers, and two-component finishes (“penetrating topcoats” refers to topcoats with especially aggressive solvent bases which can penetrate and ruin a partially cured base coat). Tie-Coat Primer is not a reactive coating (as is POR-15, which reacts to moisture), but its revolutionary adhesion promoters make it an ideal interlocking prime coat between POR-15 and various topcoats. It sands to a perfectly smooth finish. It may be used over well-seasoned POR-15 coatings even if they are more than a year old, with no special preparation other than cleaning the surface.

Summary: 
1. Stir, do not shake, Tie-Coat Primer before using. 
2. Do not sand between coats. Sand only after final coat has dried thoroughly (24 hours). 
3. As with all solvent-based coatings, use an organic vapor particulate respirator, NIOSH/MSHA approved, when spraying or brushing. In closed areas, use an air-supplied respirator when spraying. 

Surface Preparation: Surface to be coated should be free of grease, oil, foreign substances. Use of a scuff pad will create the best surface for adhesion.  Thinning: May be thinned up to 5% with POR-15 Solvent. Thinning is not usually required. Subsequent coats may be applied at 12 hour intervals if desired. Stir Tie-Coat thoroughly before using; do not shake as this will create air bubbles. Pressure: Spray at approximately 35 lbs. Do not sand between coats of primer. Sand only after final coat of primer has fully dried (24 hours). Top coating: Allow a minimum of 24 hours before applying any topcoat over Tie-Coat Primer. Failure to allow enough dry time before applying topcoats may result in spidering or crinkling of the finish. We do not recommend top coating Tie-Coat Primer with other primers prior to finish coating. Storage & Handling: Store in tightly closed container and protect from moisture and foreign materials. Ideal storage temperature range is 50 - 81o F (10 - 27o C).