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MR-7 MOLD SEALER
 
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MR-7 MOLD SEALER
MR #7 is a semi-permanent primer coating formulated to seal areas of micro-porosity in epoxy, polyester, or metal molds/tools, and protect their working surfaces. It also provides a highly compatible substrate for over-coating with any of the semi-permanent release agents, greatly enhancing the durability of the releasing interface, and extending the intervals between re-coating. It is a single-component system of complex moisture-cure film-forming resins in a volatile solvent base. On application, the solvents evaporate leaving the resins to rapidly cross-link and polymerize using the moisture in the surrounding air. This cure mechanism is rapid at relatively low temperatures, and evolves a pore-free, micro-thin transparent film that is hard, durable, and thermally stable up to approximately 482°C/900°F.

Features:
  • A semi-permanent primer coating formulated to seal micro-porosity on mold surfaces.
  • Full cure within 1 minute after slovent carrier evaporates.
  • Water Clear
MR-7 is a semi-permanent primer coating formulated to seal areas of micro-porosity in epoxy, polyester, or metal molds/tools, and protect their working surfaces. It also provides a highly compatible substrate for over-coating with any of the semi-permanent release agents, greatly enhancing the durability of the releasing interface, and extending the intervals between re-coating.

Applications: Seal areas of micro-porosity in epoxy, polyester, or metal molds to protect mold/part surfaces.

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