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P/S 870 Class A is a corrosion inhibitive sealant. It has a service temperature range from -65°F (-54°C) to 250­°F (121°C), with intermittent excursions up to 275° (135°C). This material acts as an effective barrier against the common causes of corrosion on aluminum alloys or between dissimilar metals. The cured sealant maintains elastomeric properties after limited exposure to both jet fuel and aviation gas.
P/S 870 Class A is a two-part, manganese dioxide cure polysulfide compound. The uncured material is suitable for application by brush in thickness up to 25 mils. It cures at room temperatures to form a resilient sealant having excellent adhesion to common aircraft substrates.
I ordered in a weekend and needed my purchase by a certain date. I was told when I ordered it would arrive on a specific day. And it sure did. Thanks so much for the great service.
Excellent product - be sure to shake-mix prior to use, the solids fall out of solution pretty quickly. So far we haven't had to use any reducer. This product is exactly what a well known structures rebuilder located in Indiana uses.
Great price. Prefer a hard copy...but printing from FAA website is not practical or what I was looking for. This periodical is perfect to replace my 15+ year old version. Love that Pilot Head Quarters had it on sale.
