PR-1425 Class B is an aircraft windshield and canopy sealant.

特性

Characteristics

工作溫度范圍從-54°C（-65°F）到121°C（250°F），間歇性偏移高達(dá)135°C（275°F）。

玻璃，聚碳酸酯和丙烯酸基板的填角焊縫封口應(yīng)用。

本產(chǎn)品是專門制定不開裂基質(zhì)。

固化后的密封劑顯示出優(yōu)良的耐紫外線和耐候性。

PR-1425 B類是由兩部分組成，重鉻酸固化多硫化物。

未固化的材料是一種低弧垂，觸變性膏狀適合配用擠壓槍或抹刀。在室溫下固化，形成有彈性的密封膠，對常見的飛機基板具有優(yōu)異的粘附性。

Service temperature range from -54°C (-65°F) to 121°C (250°F),with intermittent excursions up to 135°C (275°F).

Designed for fillet sealing of properly prepared glass, polycarbonate, acrylic and other aircraft sealing applications.

Specifically formulated not to craze substrates.

The cured sealant exhibits excellent resistance to UV and weather exposure.

PR-1425 Class B is a two-part, dichromate cured polysulfide compound.

The uncured material is a low sag, thixotropic paste, suitable for application by extrusion gun or spatula.

This sealant has excellent adhesion to common aircraft substrates.