The Semco® model 250-A sealant gun is the standard of the aerospace and electronics industries. It is designed for quiet pneumatic application of sealants, adhesives, potting compounds, and other materials… Have a Question? Ask a Specialist Order on WhatsApp Low PricesPrice match guarantee Guaranteed Fitment.Always the correct part In-House Experts.We know our products Easy Returns.Quick & Hassle FreeCategories: NE, New SKU: 250032