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Pro-Seal 870 Corrosion Inhibitive Sealant

Pro-Seal 870 Class A
Brush grade - MnO2 cured polysulfide - 3-7% soluble chromates - Brush sealing fasteners

P/S 870 Class A is a corrosion inhibitive sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). This material acts as an effective barrier against the common causes of corrosion on aluminum alloys or between dissimilar metals. The cured sealant maintains elastomeric properties after limited exposure to both jet fuel and aviation gas.

P/S 870 Class A is a two-part, manganese dioxide 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.

Product MIL-PRF-81733D Classification
P/S 870 A-2 Type I-2, Class 1, Grade A
P/S 870 A-1/2 Type I-1/2, Class 1, Grade A

Technical Data Sheet for P/S 870 A adobe.gif (112 bytes) 

Pro-Seal 870 Class B
 Extrusion grade - Low sag - MnO2 cured polysulfide - 3-7% chromates - Fillet and butt joint sealing

P/S 870 Class B is a corrosion inhibitive sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). This material acts as an effective barrier against the common causes of corrosion on aluminum alloys or between dissimilar metals. The cured sealant maintains elastomeric properties after limited exposure to both jet fuel and aviation gas.

P/S 870 Class B is a two-part, manganese dioxide cured polysulfide compound. The uncured material is a low sag, thixotropic paste suitable for application by extrusion gun or spatula. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.

Product MIL-PRF-81733D Classification
P/S 870 B-1/2 Type II-1/2, Class 1, Grade A
P/S 870 B-2 Type II-2, Class 1, Grade A
P/S 870 B-4 Type II-4, Class 1, Grade A

Technical Data Sheet for P/S 870 B adobe.gif (112 bytes)

Pro-Seal 870 Class C
Roller grade - MnO2 cured polysulfide - Fay surface & wet installed fastener sealing  - Long work life

P/S 870 Class C is a corrosion inhibitive sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). This material acts as an effective barrier against the common causes of corrosion on aluminum alloys or between dissimilar metals. The cured sealant maintains elastomeric properties after limited exposure to both jet fuel and aviation gas.

P/S 870 Class C is a two-part, manganese dioxide cured polysulfide compound. The uncured material is designed for roller and faying surface sealing applications.  It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.

Product MIL-PRF-81733D Classification
P/S 870 C-12 Type IV-12, Class 1, Grade A
P/S 870 C-24 Type IV-24, Class 1, Grade A
P/S 870 C-48 Type IV-48, Class 1, Grade A

Technical Data Sheet for P/S 870 C adobe.gif (112 bytes)]

Pro-Seal 870 G-1
P/S 870 Class G is a sprayable, corrosion inhibitive sealant for use over a temperature range of  -65°F (-54°C) to 225°F (107°C) with outstanding resistance to aircraft fuels (aviation gas or jet fuel), petroleum base, and deterioration by the exposure to diphosphate ester type hydraulic fluid to be used for protection of aluminum exterior surfaces against erosion and corrosive environments. 

For more information about P/S-870 contact Bergdahl Associates, Inc.

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Issue date 01/2008