Description: PERM CAST 250 is a blend of refractories designed for coating metal patterns and metal accessories for the Permanent Mold Process. The coating which is in a slurry form can be applied by brushing or spraying. PERM CAST 250 will provide excellent release from the pattern and will extend the life of metal patterns and accessories. The coating is designed to be reduced with water at the customer’s facility.

PHYSICAL PROPERTIES*: Appearance: Solids: Baumé: Viscosity: (Brookfield Viscometer Spindle #3 @ 20 RPM)

Ship Parameters Black/Gray Slurry 48% – 52% 50° – 55° 1900 CPS – 2700 CPS

*General properties, not specifications

COATING PREPARATION:

PERM CAST 250 should be mixed with a pneumatic or an electric mixer. Material must be mixed thoroughly in its container before diluting. Caution: This coating should be protected from freezing.

Coating can be adjusted by water to the appropriate Baumé. Recommended levels are as follows:

1. Baumé
   1. Brushing: 40° – 45°
   2. Spraying: 40° – 45°

Coating should be kept in the original container with closed lids to prevent drying out.