特征

擁有高達(dá)135°C（275°F），使用溫度范圍為-54°C（-65°F）至121°C（250°F），間歇使用溫度也可達(dá) 135°C (275°F).

該材料被設(shè)計(jì)為在燃料箱和其他飛機(jī)機(jī)身密封應(yīng)用的緊固件的刷密封。

固化后的密封膠保持長(zhǎng)時(shí)間暴露在兩個(gè)噴氣燃料和航空燃?xì)夂缶哂袃?yōu)異的彈性性能。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(dá)25密耳用刷子應(yīng)用。

它在室溫下固化，以形成具有優(yōu)良粘合性通用飛機(jī)基板的彈性密封膠。

PR-1422 Class A is an aircraft integral fuel tank sealant.

Features

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.

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.