PR-1440 A級是飛機整體油箱的密封膠。

特征

?PR-1422 A類是由兩部分組成，重鉻酸鹽治愈多硫化物。

?未固化的材料是適合于在厚度達25密耳用刷子應用。

?它在室溫下固化，以形成具有優良粘合性通用飛機基板的彈性密封膠。

?它擁有高達135°C（275°F），使用溫度范圍為-54°C（-65°F）至121°C（250°F），間歇游覽。

?這種材料是專為在油箱和其他飛機機身密封應用緊固件刷密封。

?固化密封膠保持長時間暴露在兩個噴氣燃料和航空燃氣后具有優異的彈性性能

PR-1440 Class A is an aircraft integral fuel tank sealant.

Features

?PR-1422 Class A is a two-part, dichromate cured polysulfide compound.

?The uncured material is suitable for application by brush in thickness up to 25 mils.

?It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.

?It has a service temperature range from -54°C (-65°F) to 121°C (250°F), with intermittent excursions up to 135°C (275°F).

?This material is designed for brush sealing of fasteners in fuel tanks and other aircraft fuselage sealing applications.

?The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas.