Directions for use as a Clear Sealer

Please note: The sealers (particularly AA-6) tend to settle on standing. Shake or stir sealer before and frequently during use.

First make sure that the Design-Cast surface has been properly cured, i.e. kept damp for at least 24 hours after casting or application (see the Curing section of the specific material's documentation). It does not have to be completely dry before applying the water based sealer.

To assure proper adhesion, you must remove any oil, grease, waxy materials, and any residue of mold release. To clean off any residues, sand or grind the surface (if permissible), or wipe down with a solvent (such as mineral spirits or turpentine) or detergent solution. If using a solvent, wait until the solvent has completely dried before applying sealer. If using a detergent, rinse off any detergent residue with clean water before applying sealer.

Have the temperature of the Design-Cast surface at 45°F (8°C) or warmer during application, and for at least 6 hours after application. Apply sealer in two or more thin coats by spray or by brush, waiting an hour or so between each coat. Although usually not necessary, you may thin the sealer with a small amount of water.

Use water to clean up or wash the sealer off brushes, spray equipment, or other tools. After the sealer has dried, you can remove it from unwanted areas with acetone. CAUTION: Acetone will attack most painted surfaces, and many plastics.

The sealer will dry to the touch in one to two hours, and will then take a few days to develop its full hardness and water resistance.