PR-1782 B類低密度密封膠。

特征

PR-1782類別B是低密度，飛機(jī)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(jī)機(jī)身密封應(yīng)用。它提供盡可能多的重量節(jié)省百分之三十，每單位體積，過(guò)用于這些目的的傳統(tǒng)密封劑。固化后的密封膠保持優(yōu)良的彈性性能，長(zhǎng)期暴露在飛機(jī)燃料都噴氣燃料和航空燃?xì)夂螅⒌种朴邢薜慕佑|到diphos- phate酯類液壓油。

PR-1782類別B是一個(gè)兩部分組成的，二氧化錳固化聚硫密封。未固化物質(zhì)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(yōu)良的粘附到公共飛機(jī)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.