Mullion Plugs/Dams

Our Mullion Plugs/Dams are typically made from:

4# ClipFoamTM
SCE41B Neoprene Foam
Low Density PVC Foam 
Medium Density PVC Foam
HT-800 Closed Cell Medium Cellular Silicone Foam

If you’re looking for a different material, we are able to provide other options by special request.

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Product Overview

Used for mating mullion components in curtain walls, windows and doors. They are also used to seal head and seat boards of bow and bay windows.