PR-1826 B類是一種快速固化，飛機整體燃料密封膠。

PR-1826 Class B is a rapid cure, aircraft integral fuel tank sealant.

特點

Features

使用溫度范圍從-80°F（-62°C）到320°F（160℃），間歇性偏移到420°F（216°C）。

這種材料是專為圓角密封油箱和其他飛機機身密封應用。

長期接觸航空噴氣燃料和天然氣后，固化的密封劑仍保持彈性。

PR-1826 B類是由兩部分組成，環氧樹脂固化PERMAPOL?P-3硫醚化合物。

未固化的材料是一種低凹陷，觸變膏，適合通過擠壓槍或抹刀應用。

不像標準的聚硫燃料密封劑，它可以在低溫下固化，不受相對濕度變化的影響。

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).

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-1826 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.