PR-1782 B類低密度密封膠。

特征

PR-1782類別B是低密度，飛機燃料箱和通用的密封劑。它具有使用溫度范圍從-54℃至121℃（-65°F至250°F）。這種材料是專為圓角密封和其它飛機機身密封應用。它提供盡可能多的重量節省百分之三十，每單位體積，過用于這些目的的傳統密封劑。固化后的密封膠保持優良的彈性性能，長期暴露在飛機燃料都噴氣燃料和航空燃氣后，并將抵制有限的接觸到diphos- phate酯類液壓油。

PR-1782類別B是一個兩部分組成的，二氧化錳固化聚硫密封。未固化物質ISA低下垂，適合用于擠壓槍或鍋鏟觸變膏。其固化，在室溫溫度，以形成具有優良的粘附到公共飛機基板的彈性密封膠。

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.

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