PPG PR1770C-2 (150-ml-Semkit)

Additional Product Information

Overview

PR-1770C is a two-part, manganese dioxide cured polysulphide faying surface sealant designed for high-performance aerospace structural sealing. Manufactured for use in aircraft maintenance, repair, and overhaul (MRO) environments, this advanced sealant provides outstanding resistance to aviation fuels, lubricating oils, and phosphate ester hydraulic fluids. Aviation engineering teams rely on PR-1770C for long-term corrosion protection and durable metal-to-metal joint sealing under extreme operating conditions.

Key Technical Specs for PR-1770C faying surface sealant

• Type: Two-part polysulphide aerospace sealant, manganese dioxide cured
• Size/Volume: Not specified (available in standard aerospace procurement packaging)
• Color: Part A – Black; Part B – Light grey; Mixed – Dark grey
• Viscosity/Consistency: Approximately 280 Pa·s (2800 poise) Brookfield #7 @ 2 rpm
• Cure/Working Time: Application life ranges from 12–36 hours depending on grade (C-12, C-24, C-36) at 25°C (77°F)
• Tack Free Cure Time: Approximately 8 hours – 96 hours depending on system configuration
• Tensile Strength: 2.29–3.38 MPa (334–522 psi) after standard cure
• Peel Strength: Approximately 215–240 N/25 mm (49–55 pli) with cohesive failure on stainless steel, titanium, and epoxy primer substrates
• Shore Hardness: ~55 Shore A
• Service Temperature Range: -55°C to +180°C (-67°F to +356°F)
• Typical Uses: Faying surface sealing, corrosion inhibition between structural joints, fuel-exposed interfaces

Approvals & Specifications

• Conforms to AIMS 04.05.001 testing standards
• Designed for aerospace structural sealing performance requirements
• Manufactured under quality systems aligned with aviation industry material standards

Typical Aircraft MRO / AOG Applications

• Wing and fuselage faying surface sealing
• Metal-to-metal structural joint protection
• Corrosion prevention in fuel tank adjacent structures
• Sealing chemically treated or painted aluminum, titanium, and steel substrates
• Maintenance repair sealing during aircraft turnaround operations

Compatibility & Safety Notes

• Compatible with metallic, chemically treated, and painted aerospace substrates after proper surface preparation
• Surface must be solvent cleaned using progressive lint-free wiping methods prior to application
• Substrate adhesion characteristics should be verified for production implementation
• Use recommended personal protective equipment and consult the Material Safety Data Sheet before handling

Packaging & Procurement

• Supplied in two-part aerospace grade container systems
• Designed for ease of brush or roller application in maintenance environments
• Suitable for controlled storage inventory management in MRO and airline AOG kits
• Store unopened containers in cool, dry conditions within specified temperature limits

Why PR-1770C faying surface sealant is Chosen for AOG / MRO

• Rapid deployment capability for critical aircraft downtime reduction
• Excellent resistance to aviation fuels and hydraulic fluids
• High elasticity retention after prolonged service exposure
• Strong cohesive bonding performance across multiple aerospace materials
• Reliable long-term corrosion protection for structural assemblies

Practical Suggestions for Your Team (AOG Mindset)

• Maintain sealed inventory units for emergency aircraft repair readiness
• Train maintenance personnel on proper solvent cleaning and application timing
• Monitor storage temperature conditions to preserve material stability
• Prepare application tools such as brushes or rollers in advance for rapid deployment 

Alternative Names & Descriptions

• PR1770C aerospace sealant
• PPG PR-1770C faying surface sealant
• Permapol P-5 polysulphide aircraft sealant
• Aerospace structural polysulphide sealant PR-1770C
• High temperature resistant faying surface sealant