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Chemlease® Sealer 2766W

1 of 7 products in this brand
Chemlease® Sealer 2766W is a water-based sealer designed to treat both the chemical and physical bonding sites found on every mold surface. Chemlease® Sealer 2766W delivers a durable film with superior abrasion resistance. Chemlease® Sealer 2766W eliminates the break-in time for new molds and reduces mold down time by extending the number of releases between cleaning cycles. When applied in conjunction with the appropriate semi-permanent release agent, Chemlease® Sealer 2766W provides multiple, effortless releases.

Product Type: Sealer, Waterborne Coating

Compatible Substrates & Surfaces: Metal

Features: Abrasion Resistant, Durable, Excellent Seal Properties

Application Method: Spray

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Identification & Functionality

Features & Benefits

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Uses

Chemlease® Sealer 2766W was specifically developed for sealing composite molds with and without tooling gel coat. Chemlease® Sealer 2766W may also be used for machined composite mold and metallic mold substrates. Chemlease® Sealer 2766W is suitable for virtually all manufacturing processes used in molding composite structures.

Application

The mold should first be properly cleaned using the appropriate mold cleaner according its product data sheet. If the mold is extremely porous, such as with tooling boards or 3D printed substrates, use of the appropriate mold primer is also suggested.

  1. Lightly mist the mold surface with a hand-sprayer or spray-mop for large mold surfaces. Then wipe the droplets into a continuous film using a clean cloth.
  2. Before the sealer coating dries, wipe with a second clean, dry cloth to thin the film and aid with carrier evaporation. Replace cloths as needed to ensure adequate absorption and drying.
  3. Repeat in the same manner in rows/sections, overlapping slightly to ensure full coverage of the mold.
  4. Let cure for 15 minutes between coats.
  5. Apply 1 - 3 more coats of Chemlease® Sealer 2766W in the same manner for a total of 2 - 4 coats.
  6. After the final coat, allow to cure for a minimum of 60 minutes at room temperature before applying release agent. For best performance, it is recommended to bake the coating at 100°C for a minimum of 15 minutes once reaching that temperature.

Important: The recommended number of coats and cure times are a general guideline found to be more than sufficient in a broad spectrum of molding conditions. When molding products with extreme geometries or experiencing low humidity conditions in the shop, the customer may find the need to extend the cure time between coats and increase the number of coats applied to the mold. The efficiency of a release film is best determined through a combination of tape tests and experimentation.

Properties

Finish
High Gloss, Abrasion Resistant

Packaging & Availability

Packaging

Chemlease® Sealer 2766W is available in a variety of package sizes.

  • 1 kg
  • 5 kg

Storage & Handling

Storage

Store product between 5ºC and 30ºC (41ºF and 86ºF). Keep from freezing. Keep container tightly sealed to prevent evaporation and/or contamination. If stored in cold temperatures, allow to warm to room temperature before using.

Handling

Chemlease® Sealer 2766W is a low degree of hazard when used as intended.