David Bolton Nylon Brush Astragals on Exterior Door Pairs: Why the Finish and Pile Height Decision Happens at the Opening, Not the Catalog What This Article Covers and Who It Helps A nylon brush astragal seals the gap at the meeting stile of a door pair. On exterior openings, it blocks drafts, wind-driven rain, dust, insects, and light. ... brush astragals commercial door gasketing door pair seals exterior door hardware weathersealing Apr 23, 2026 Our Blog
