PR-1422 A级是飞机整体油箱的密封胶。

特征

拥有高达135°C（275°F）的瞬时高温，正常使用温度范围为-54°C（-65°F）至121°C（250°F）

该材料被设计应用在燃料箱和其他飞机机身密封上。

两种喷气燃料和航空燃气长时间暴露后，固化后的密封胶仍具有优异的弹性性能。

PR-1422 A类是由两部分组成，重铬酸盐固化的多硫化物。未固化的材料是适合于在厚度达25密耳应用。

它在室温下固化，以形成通用飞机基板的具有优良粘合性的弹性密封胶。

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.

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