Use:
Silver Urethane Fabric Primer is a polyurethane product that serves two purposes: to build the coating over the fabric to prepare for paint, and to protect the fabric from UV radiation. Silver Primer uses a metallic-like flake additive. This proven system results in a positive metallic light block and reflection to both visible and invisible UV without relying on chemical UV light blockers.

Packaging:
Quarts and gallons. This product is part of a three-part kit. The three components are: primer, catalyst, and thinner. All are required, and none can be substituted with other products.

Quart Kit Components Sold Separately:
A. One quart Silver Urethane Fabric Primer
B. One half-pint Silver Urethane Fabric Primer Catalyst
C. One quart G-4200 Ranthane Thinner.
When mixed, these components yield almost two quarts of sprayable Silver Urethane Fabric Primer.

Gallon Kit Components Sold Separately:
A. One gallon Silver Urethane Fabric Primer
B. One quart Silver Urethane Fabric Primer Catalyst
C. One gallon G-4200 Ranthane Thinner.
When mixed, these components yield almost two gallons of sprayable Silver Urethane Fabric Primer.

Coverage:
One gallon of mixed components (almost two gallons sprayable) will yield 300 square feet. See estimated quantities in the rear of this manual.

Mixing:
Mix four parts Silver Urethane Fabric Primer with one part Silver Urethane Fabric Primer Catalyst and stir. Allow sitting for 20 minutes induction time before use.

Pot Life:
Six hours at 77°. This may vary with temperature and humidity. If product thickens, do not use.

Thinning:
Thin 33% with G-4200 Ranthane Thinner. As a rule of thumb, this is three parts catalyzed Silver Urethane Fabric Primer to one part G-4200. For best results, thin 33%, then spray a vertical surface test with a moderate coat to insure that the film has no orange peel and does not run.

Application:
WARNING: AS WITH ALL CATALYZED POLYURETHANES, A FRESH AIR SUPPLIED SPRAY MASK IS MANDATORY. CHARCOAL MASKS WILL NOT PROTECT FROM POLYISOCYANATES IN THE SPRAY MIST!

Silver Urethane Fabric Primer is applied directly over Gray Sealer after all tapes have been applied and heat smoothed. For best results, wait at least 24 hours before spraying Silver Urethane Fabric Primer over Gray Sealer.

Two cross coats of Silver Primer are applied. A cross coat is two passes of the spray gun 90° to each other. Two cross coats may be applied in one day. After drying overnight, wet sand rough areas and pinked tape edges with 280-grit sandpaper. Spot sand imperfections if necessary.

Dry Time:
30 to 45 minutes depending on temperature and humidity. To speed up drying, use one ounce of Randolph D-7201 Ranthane Accelerator per quart of catalyzed Silver Urethane Fabric Primer.

Shelf Life:
Two years unopened. Insure contents are fully mixed before use.