PR-1782 B类低密度密封胶。

特征

PR-1782类别B是低密度，飞机燃料箱和通用的密封剂。它具有使用温度范围从-54℃至121℃（-65°F至250°F）。这种材料是专为圆角密封和其它飞机机身密封应用。它提供尽可能多的重量节省百分之三十，每单位体积，过用于这些目的的传统密封剂。固化后的密封胶保持优良的弹性性能，长期暴露在飞机燃料都喷气燃料和航空燃气后，并将抵制有限的接触到diphos- phate酯类液压油。

PR-1782类别B是一个两部分组成的，二氧化锰固化聚硫密封。未固化物质ISA低下垂，适合用于挤压枪或锅铲触变膏。其固化，在室温温度，以形成具有优良的粘附到公共飞机基板的弹性密封胶。

PR-1782 class B low density sealant.

Features

PR-1782 Class B is a low density, aircraft fuel tank and general purpose sealant. It has a service temperature range from -54°C to 121°C (-65°F to 250°F). This material is designed for fillet sealing and other aircraft fuselage sealing applications. It offers as much as a thirty percent weight saving, per unit volume, over traditional sealants used for these purposes. The cured sealant maintains excellent elastomeric properties after prolonged exposure to aircraft fuels both jet fuel and aviation gas, and will resist limited contact to diphos- phate ester based hydraulic fluids.

PR-1782 Class B is a two-part, manganese dioxide cured polysulfide sealant. The uncured material isa low sag, thixotropic paste suitable for application by extrusion gun or spatula. It cures at room tempera- ture to form a resilient sealant having excellent adhe- sion to common aircraft substrates.