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AC-251B Canopy & Windshield Sealant

AC-251 Class B Black is a two-part, quick curing, polysulfide based canopy and windshield sealant.  This product is formulated for sealing acrylic, glass and polycarbonate aircraft canopies and windshields.  AC-251 B contains no solvents and does not craze.  The sealant quickly cures and exhibits excellent adhesion and resistance to UV and weather exposure.

AC-251 Class B has a thixotropic, non-sag consistency.  It can be readily applied with a spatula or extrusion gun on vertical surfaces.  The cured AC-215 sealant has low adhesion and forms a tough, "rubbery" gasket that molds well to surface irregularities.

Stocking, processing
and delivering aerospace parts

Hello and welcome to our website. Contained within these pages is most of the information found in our printed catalogue, all available to order online! In addition you can search our entire inventory of over 125,000 part numbers.

Stock and pricing of all parts listed on this site is live, all prices exclude VAT and shipping. All orders are subject to our standard terms and conditions.

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Quality products
and easy ordering

All our stock is available for next day delivery. In addition we have distributorships for Aircraft Tool Supply, LP Aero Plastics, Falcon Gauge, Ceconite / Randolph and Shield Technology to name but a few!

We are also the UK and European distributor for Aircraft Spruce and Speciality, with whom we have been doing business with for over 25 years.

Should you ever need any further information then our experienced sales team are just a phone call or email away and will happily answer any questions you may have.