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PPG PR1776MB-2 (100-ml-Semkit)

LOW WEIGHT FUEL TANK SEALANT (100-ml-Semkit)
AERO P/N: 104017
Hazardous Material
Price matched Price matchedPrice matched based on current market rates, competitor pricing, or promotional adjustments.
Limited availability Limited availabilityLimited global stock availability due to production delays, high demand, or supply chain disruptions.

Total Available Stock: 509

UK
USA
497 In Stock (UK)
12 In Stock (USA)
Expiry Date: 31/Aug/2026
Expiry Date: 31/May/2026
Additional Stock Expected: 16/Feb/2026
Additional Quantity Available to Order: 640
$124.30 excl VAT
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PPG PR1776MB-2 (Also known as: PR1776MB-2, PPG PR1776MB sealant, 100-ml Semkit)

Summary: PPG PR1776MB-2 is an approved, rapid-curing, two-part polythioether sealant specifically formulated for fuel tank and fuselage joint applications in the aviation industry. It provides fuel-tight, moisture-resistant sealing and is engineered for both scheduled maintenance and urgent AOG repairs.

MRO Category: Aerospace Sealants

Sub-Category: Fuel Tank & Structural Sealants; Two-Part Polythioether Sealants

Function: Seals integral fuel tanks; Seals fuselage and access panel joints exposed to fuel or moisture

Use Cases: Sealing integral fuel tanks in commercial and military aircraft. Rapid AOG repairs requiring fast-curing sealant.

Description:
The PPG PR1776MB-2 is a low-weight, two-part sealant specifically engineered for integral fuel tank and fuselage joint applications in the aviation industry. Supplied in a convenient 100 ml (3.38 fl oz) Semkit cartridge. PPG PR1776MB-2 provides precise mixing and application, making it ideal for both scheduled maintenance and urgent AOG situations. This sealant delivers excellent fuel resistance, maintaining elastomeric flexibility under extreme conditions from –62°C to +160°C (–80°F to +320°F) and intermittent excursions up to 216°C (420°F). Aircraft engineers and MRO ground crew rely on the PPG PR1776MB-2 to ensure fuel-tight integrity on critical fuselage and fuel tank joints, helping prevent costly downtime and maintain aircraft airworthiness.
Trusted across both commercial and military aviation fleets. PPG PR1776MB-2 is designed for rapid, reliable application in AOG or routine maintenance scenarios. Its lightweight formulation reduces added weight to sensitive aircraft structures while maintaining long-term adhesion and sealing performance. With each 100 ml (3.38 fl oz) Semkit providing sufficient material for multiple joints or access panels, engineers and ground crew can confidently address fuel-seal issues efficiently. To learn more about purchasing the PPG PR1776MB-2, aviation engineers are invited to email sales@aerospheres.com, call UK +44 (0)3333 247 777 or US +1 888 421 7703, or simply click the “Add to Cart” option.

 

Spec Sheets For PPG PR1776MB-2:
PPG PR1776MB-2 Technical Data Sheet
Safety Data Sheet for PPG PR1776MB-2 Part A
Safety Data Sheet for PPG PR1776MB-2 Part B

Product Features
OEM
PPG
Brand
PPG
OEM Part No.
PR1776MB2-1001
Colour
-
Shelf Life in Months
9
Shelf Life in Days
270
UN No
UN3082
Class
CL9
PG
PGIII
ECCN
EAR99
Country of Origin
United Kingdom
Commodity Code
32149000

    Information

    Additional Product Information

    The PPG PR1776MB-2 is trusted by aircraft engineers and MRO teams across the aviation industry, from frontline military jets to commercial airliners carrying millions of passengers each year, because it delivers reliable, fuel-tight sealing on critical fuselage and integral fuel tank joints. Its rapid-curing, two-part formulation reduces downtime during both scheduled maintenance and urgent AOG situations, allowing ground crew to restore fuel integrity quickly and safely. Lightweight yet durable, the sealant maintains excellent elastomeric properties under extreme temperature conditions and prolonged exposure to aviation fuels. With precise Semkit packaging and proven performance, the PPG PR1776MB-2 ensures aircraft remain safe, airworthy and ready for operation.

    Key Technical Specs for PPG PR1776MB-2

    • Product Type: Two-part, polythioether-based, rapid-curing sealant.
    • Volume / Packaging: 100 ml (3.38 fl oz) Semkit cartridge.
    • Service Temperature: –62°C to +160°C (–80°F to +320°F) continuous; intermittent excursions up to 216°C (420°F).
    • Primary Use: Sealing integral fuel tanks, fuselage joints, and access doors exposed to fuel or moisture.
    • Performance: Maintains elastomeric flexibility after prolonged exposure to aviation fuels; chemical and fuel resistance suitable for high-performance aircraft applications.
    • Load-Bearing: Not load-bearing; designed strictly for sealing and maintaining fuel-tight integrity.

    Approvals & Specifications for PPG PR1776MB-2

    • OEM / MRO Approvals: PPG’s PR1776 series is widely referenced in military and commercial maintenance programs.
    • Aircraft Spec Codes: Often listed under Boeing, Lockheed Martin, and military OEM programs; specific Airbus references may require Certificates of Conformance (C of C) from supplier.
    • Certification Notes: Meets internal PPG PR1776MB-2 performance criteria; rapid cure suitable for AOG applications.

    Typical Aircraft MRO / AOG Applications for PPG PR1776MB-2

    • Sealing integral fuel tanks, fuselage joints, and structural interfaces exposed to fuel or condensate.
    • Rapid AOG repairs requiring fast-curing sealant to prevent aircraft groundings.
    • Scheduled maintenance where fuel-tight, flexible sealing is required.
    • Stocking Benefits: Immediate availability in AOG kits allows engineers to restore fuel-tight integrity quickly, preventing operational delays or aircraft groundings.

    Compatibility & Safety Notes for PPG PR1776MB-2

    • Compatible with aluminum, titanium, and common aircraft composite substrates when surfaces are properly prepared.
    • Two-part mixing ensures consistent curing; minimal waste in 100 ml Semkit format.
    • Non-load-bearing; not intended as a structural adhesive.
    • Standard aviation safety precautions apply: wear gloves, eye protection, and work in ventilated areas.

    Packaging & Procurement for PPG PR1776MB-2 (matched to the Aerospheres page and common market packs)

    • Supplied as a 100 ml (3.38 fl oz) Semkit with pre-measured Part A and Part B for accurate mixing.
    • Individually boxed with lot number and shelf life information.
    • Suitable for immediate use in AOG kits or smaller scheduled maintenance tasks.

    Why PPG PR1776MB-2 is Chosen for AOG / MRO

    • Rapid curing minimizes aircraft downtime.
    • Compact Semkit design prevents waste in small maintenance jobs.
    • Trusted by MRO teams for critical fuel sealing on both military and commercial aircraft.
    • Lightweight and easy to handle for ground crew in remote or confined areas.

    Practical Suggestions for Your Team (AOG mindset) for PPG PR1776MB-2

    • Keep 1–2 Semkits per AOG kit for quick fuel-seal repairs.
    • Train ground crew on proper mixing, surface prep, and curing time to ensure fuel-tight applications.
    • Store in dry, climate-controlled conditions; check expiration date before dispatch.
    • Include printed SDS and TDS in the kit for immediate reference during AOG operations.

    Manufacture / Aviation Spec Codes for PPG PR1776MB-2

    • PPG Manufacturer P/N: PR1776MB-2
    • OEM References: Boeing, Lockheed Martin, and other military OEMs (specific codes via supplier C of C).
    • Certification: PR1776 series meets internal PPG performance specifications; consult PPG for project-specific approvals.

    Alternative Names & Descriptions for PPG PR1776MB-2

    • PPG PR1776MB-2 Semkit
    • PR1776MB-2 100 ml fuel tank sealant
    • PPG 100 ml Semkit integral fuel tank sealant
    • PR1776MB-2 Two-part aviation sealant
    • PPG PR1776MB series sealant (Class B)

    Restrictions

    Restrictions
    Restricted
    Hazardous
    Yes
    Dry Ice
    No
    Precursor Licence
    Export Licence
    FEDEX Restriction
    Supplier Disruption
    no

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    Shipping Information

    • Orders over £50 online are eligible for FREE UK Mainland delivery.
    • Collection for orders is available for all customers. At Checkout, please select 'Ex-Works/Collection'.
    • European Delivery is available for selected countries. Shipping costs will be calculated according to the weight of the products.
    • Refrigerated shipping required for shipments going by sea or exceeding 7 days transit time.
    • For additional information, please see our shipping page.

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