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

特点

Features

工作温度范围从-54°C（-65°F）到121°C（250°F），间歇性偏移高达135°C（275°F）。

这种材料是专为刷密封油箱和其他飞机机身密封应用的紧固件。

长期接触航空喷气燃料和天然气后，固化的密封剂仍保持弹性。

PR-1422 A类是由两部分组成，重铬酸钾固化多硫化物。未固化的材料是适合配用刷的厚度可达25密耳。

对常用飞机基材有着良好的附着力，在室温下固化形成有弹性的密封胶。 

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.