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Responds to 900418 ltr outlining concerns re Info Notice 88-056, "Potential Problems W/Silicone Foam Fire Barrier Penetration Seals." Silicone foam acceptable matl provided certain installation parameters controlled.

Accession Number: ML20055C609

Date Released: Friday, October 25, 2024

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• ML20055C608 - Responds to 900418 ltr outlining concerns re Info Notice 88-056, "Potential Problems W/Silicone Foam Fire Barrier Penetration Seals." Silicone foam acceptable matl provided certain installation parameters controlled. (2 page(s), 5/16/1990)
• ML20055C612 - Requests clarification of Info Notice 88-056 & NRC acceptance or rejection of silicone foam for const of fire barriers. (2 page(s), 4/18/1990)