PR-1828 B类是一种快速固化，最常见的基板无衬底漆，飞机整体油箱密封胶。使用温度范围从-80°F（-62°C）到320°F（160℃），间歇性偏移到420°F（216°C）。

PR-1828 Class B is a rapid curing, primerless to most common substrates, aircraft integral fuel tank sealant. It has a service temperature range from -80°F (-62°C) to 320°F (160°C), with intermittent excursions up to 420°F (216°C).

特点

Features

这种材料是专为圆角密封油箱和其他飞机机身密封应用。

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-1828 B类是由两组分组成，环氧树脂固化PERMAPOL®P-3硫醚化合物。

未固化的材料是一种低凹陷，触变膏，适合于应用程序通过挤压枪或抹刀。与标准多硫化物油箱密封剂，它可以在低温下固化，不受相对湿度的变化影响。

对常见航空基板有着优异的附着力。

This material is designed for fillet sealing of 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-1828 Class B is a two-part, epoxy cured Permapol® P-3 polythioether compound.

The uncured material is a low sag, thixotropic paste, suitable for application by extrusion gun or spatula. Unlike standard polysulfide fuel tank sealants, it can cure at low temperatures and is unaffected by changes in relative humidity.

This sealant has excellent adhesion to common aircraft substrates.