PPG PS700 (6-floz-S654)
FIREWALL SEALANT (6-US Fluid Ounce-Semkit 654)
AERO P/N: 110359
Hazardous Material
PPG PS700 Firewall Sealant, a high-temperature, primerless two-part compound engineered for aerospace sealing. It cures at room temperature to form a tough, flexible barrier against air, vapor, fluids and flame delivering reliable protection for firewalls, engine bays, and critical joints.
Product Features
OEM
-
OEM Part No.
-
Colour
-
Shelf Life in Months
12
Shelf Life in Days
360
UN No
UN1133+UN1133
Class
CL3+CL3
PG
PGII+II
ECCN
EAR99
Country of Origin
United States
Commodity Code
32149000
Product Type
Sealants
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Information
Additional Product Information
Overview
PPG PS700 is a high-temperature, primerless firewall sealant designed for sealing aircraft firewall structures against air and vapor passage. This two-part synthetic rubber compound cures at room temperature to form a resilient, flame-resistant barrier used across aviation maintenance, repair, and overhaul (MRO) operations. Maintenance teams rely on P/S 700 for its ability to withstand extreme temperatures, harsh fluids, and demanding aircraft environments while remaining easy to apply in both production and field repairs.Key Technical Specs for P/S 700 Firewall Sealant
- Type: Two-part synthetic rubber firewall sealant
- Mix Ratio: Part A : Part B = 2.5 : 100 by weight
- Color: Part A Brown, Part B Black, Mixed Black
- Consistency: Low-sag paste suitable for extrusion gun or spatula application
- Base Viscosity: 12,000 Poise (1200 Pa-s)
- Application Life: Approx. 2 hours at 77°F (25°C)
- Tack-Free Time: Less than 4 hours
- Full Cure Time: 48 hours (room temperature)
- Peel Strength: 12 pli (53 N/25 mm) dry; 15 pli (67 N/25 mm) after 72 hours at 400°F (204°C)
- Ultimate Hardness: Shore A 75
- Service Temperature Range: −65°F to 400°F (−54°C to 204°C)
- Flash Temperature Resistance: 2000°F (1093°C)
- Specific Gravity: 1.36
- Non-Volatile Content: 70%
Approvals & Specifications
- Tested to MIL-S-38249 Type I specification methods
- Compatible with QQ-A-250/4 Aluminum substrates
- Compatible with MIL-S-5059 Stainless Steel substrates
- Designed for aerospace firewall sealing requirements
Typical Aircraft MRO / AOG Applications
- Aircraft firewall and fuselage seam sealing
- Engine nacelle and engine bay sealing
- Sealing joints exposed to flame or high heat
- Air and vapor barrier sealing in critical structures
- Maintenance, repair, and overhaul (MRO) sealing tasks
Compatibility & Safety Notes
- Adheres to common aircraft substrates including aluminum and stainless steel
- Surface must be cleaned with approved solvents prior to application
- Use lint-free cloths and progressive cleaning methods
- Adhesion testing recommended for specific substrates before production use
Packaging & Procurement
- Supplied as a two-part kit for controlled mixing
- Designed for easy field and hangar application
- Store below 80°F (27°C) in unopened containers
- Suitable for both production and maintenance environments
Why P/S 700 Firewall Sealant is Chosen for AOG / MRO
- Handles extreme temperature exposure and flame conditions
- Primerless formulation speeds maintenance workflows
- Resistant to fuels, oils, water, and aviation fluids
- Reliable adhesion and flexibility across wide temperature ranges
- Ideal for urgent AOG repairs and routine MRO tasks
Practical Suggestions for Your Team (AOG Mindset)
- Stock kits for rapid response to firewall sealing needs
- Train technicians on correct mixing ratios and surface preparation
- Use for both scheduled maintenance and emergency repairs
- Verify substrate compatibility during onboarding and training
Manufacture / Aviation Spec Codes
- Manufacturer: Aerospace Sealant Manufacturer
- Product ID: P/S 700
- Specification: MIL-S-38249 Type I
Restrictions
Restrictions
Restricted
Hazardous
Yes
Dry Ice
No
Precursor Licence
Export Licence
FEDEX Restriction
Supplier Disruption
no
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Shipping Information
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