403.21 Freeze Thaw Stable Thumbing Compound

Description

403.21 is a premium thumb grade sealing compound especially formulated to be stable through multiple freeze/thaw cycles. It is used in the assembly of refrigerator and freezer cabinets or wherever freeze/thaw stability is important.

403.21 is non-staining, non-hardening and nondrying. It has aggressive adhesion and gives cohesive failure on most commercially clean surfaces without any special preparation. 403.21 has resistance to the following types of fungus:

• Chaetomium globosum
• Aspergillus niger
• Aspergillus flavus
• Penicillium funiculosum.

Application

403.21 is available in a variety of sizes including beads, tapes, slugs or flat, cut to length pieces.

Regulations & Specifications

FDA Regulation

Meets U.S. Food and Drug Administration (FDA) regulation 21 CFR 175.105 – Indirect food additives: Adhesives and components of coatings. For substances that may come into contact with food as part of packaging or processing equipment, but are not intended to be added directly to food.