特征

拥有高达135°C（275°F），使用温度范围为-54°C（-65°F）至121°C（250°F），间歇使用温度也可达 135°C (275°F).

该材料被设计为在燃料箱和其他飞机机身密封应用的紧固件的刷密封。

固化后的密封胶保持长时间暴露在两个喷气燃料和航空燃气后具有优异的弹性性能。PR-1422 A类是由两部分组成，重铬酸盐治愈多硫化物。未固化的材料是适合于在厚度达25密耳用刷子应用。

它在室温下固化，以形成具有优良粘合性通用飞机基板的弹性密封胶。

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.