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PPG Aerospace - PRC-Desoto PR-1764 Class B - 2 hour application life - Electrically Conductive Sealant - 6 oz SemKit PR-1764 Class B is an electrically conductive corrosion inhibitive sealant. It has a service temperature range from -67┬░F (-55┬░C) to 250┬░F (121┬░C), with intermittent excursions up to 360┬░F (182┬░C). The cured sealant maintains electrical continuity in aircraft applications. This material provides excellent long-term EMI/RFI shielding against the common causes of corrosion on aluminum alloys or between dissimilar metals. The cured sealant is resistant to prolonged exposure to both jet fuel and aviation gas.
PR-1764 Class B is a two-part, nickel filled, manganese dioxide cured, Permapol® P-3 polythioether compound. The uncured material is a low sag, thixotropic paste suitable for application by extrusion gun or spatula. This sealant has excellent adhesion to common aircraft substrates when correctly primed with PR-148 Adhesion Promoter.
Tested are in accordance with AMS 3266 Class B and other specification methods.
Best priced around great and speedy service!
Also is the better of the 2 options since it is rated at 5,000 psi, not that I go to that high of pressure but I like the safety and security knowing that my chances of it blowing up in my face are a whole lot better and I can also purchase replacement seals for them at the same shop!!!
I bought the DC PTT because I know and trust the DC quality/durability to hold up to using every day. And so far it’s the best PTT I’ve used. I have a couple other no-name PTTs and the cable sheathing is crumbling and falling off. The DC PTT has worked even in sub zero cabin temp conditions when I didn’t have a functioning heater. I bought two to have a spare but the first one has been working great for 300hrs so far.
