PPG PS890B 1/2 (6 oz / 100 ml / SK654 Semkit)
FUEL TANK SEALANT (100-ml-Semkit)
AERO P/N: 100359
Hazardous Material
Price matchedPrice matched based on current market rates, competitor pricing, or promotional adjustments.
Limited availabilityLimited global stock availability due to production delays, high demand, or supply chain disruptions.
Introducing PPG PS890B-1/2 (100-ml Semkit), a two-part polysulfide fuel tank sealant for integral aircraft structures.
Designed for sealing fuel tanks, fuselage joints and fuel-exposed interfaces, it provides elastomeric flexibility and resistance to aviation fuels and moisture.
Engineered for controlled Semkit application and reliable in-service performance.
Product Features
OEM
PPG
OEM Part No.
PS890B1/2-1001
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
Product Type
Sealants
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Information
Additional Product Information
Overview
PPG PS890B-1/2 is a high-performance aerospace fuel tank sealant trusted by MRO teams and aircraft engineers worldwide. It provides reliable, fuel-resistant sealing essential to the safety and airworthiness of both military aircraft and commercial fleets. Proven in sealing integral fuel tanks and critical fuselage joints, it supports reduced downtime during scheduled maintenance and urgent AOG situations. Supplied in a ready-to-use Semkit, PS890B-1/2 ensures consistent mixing, easy application, and reduced material waste, making it a practical industry benchmark for polysulfide sealants.
Key Technical Specs
- Type / Chemistry: Two-part, manganese-dioxide cured polysulfide fuel tank sealant
- Packaging: 100 ml (3.38 fl oz) Semkit cartridge for precision repairs and AOG response
- Service Temperature Range: -54°C to +121°C (-65°F to +250°F)
- Temperature Excursions: Up to approximately 135°C (275°F)
- Physical Properties: Elastomeric after cure, maintains flexibility and adhesion after prolonged fuel exposure
- Mix Ratio: Pre-measured Part A and Part B in Semkit; follow manufacturer instructions exactly
- Load-Bearing: Not structural; intended for sealing and fuel containment only
- Shelf Life: Approximately 9 months (270 days) when stored per manufacturer guidelines
- Hazard / Shipping: Commonly shipped under UN3082, Hazard Class 9, Packing Group III
Approvals & Specifications
- Manufacturer: PPG Aerospace
- Product Family: P/S 890 Class B (PS890B)
- Associated Industry Specification: AMS-S-8802 (refer to TDS for Type/Class applicability)
- OEM Acceptance: Widely used across OEM maintenance programs; Certificates of Conformance recommended for platform-specific compliance
- Documentation: PPG Technical Data Sheet (TDS) and Safety Data Sheets (SDS) available from manufacturer
Typical Aircraft MRO / AOG Applications
- Sealing integral fuel tanks, access doors, and fuselage joints exposed to fuel or condensate
- Immediate AOG repairs where small, fast-application kits are required
- Preventing aircraft groundings due to fuel seal leaks
- Supporting interim repairs prior to scheduled depot maintenance
Compatibility & Safety Notes
- Compatible with aircraft metals and common composite substrates when surface preparation follows TDS guidance
- Generally compatible with elastomeric seals; confirm for specific compounds
- Semkit packaging ensures accurate mixing when used with proper applicator tools
- Ambient cure rate varies with temperature and humidity; cold conditions may extend cure time
- Use appropriate PPE and adequate ventilation; follow SDS for handling, storage, and disposal
- Intended for fuel system applications; verify suitability before use in non-fuel interior areas
Packaging & Procurement
- Supplied as individual 100 ml (3.38 fl oz) Semkit cartridges with lot identification
- Recommended order details include part number, batch/lot, manufacture date, remaining shelf life, TDS, SDS, and Certificate of Conformance
- FIFO stock rotation and temperature-controlled storage recommended
Why Chosen for AOG / MRO
- Rapid field deployment using Semkit packaging
- Proven resistance to jet fuel and aviation gasoline
- Cost-effective for small repairs compared to bulk sealant kits
- Long-standing industry familiarity among maintenance technicians
Practical Suggestions for Your Team (AOG Mindset)
- Stock multiple 100 ml Semkits in AOG response kits
- Ensure technicians are trained in Semkit application and surface preparation
- Carry solvent wipes, applicator guns, and tooling equipment
- Plan for extended cure times in cold environments
- Record batch and application data for traceability and compliance
Manufacture / Aviation Spec Codes
- PPG / PRC Family Designation: P/S 890 Class B
- Associated Specification Reference: AMS-S-8802
- OEM Acceptance: Platform-specific approval via maintenance documentation or supplier certification
Alternative Names & Descriptions
- PPG PS890B-1/2 Semkit
- PS 890 B-1/2 Fuel Tank Sealant
- Pro-Seal 890 B Semkit
- PS890 Semkit 100 ml
- Rapid Cure Polysulfide Fuel Tank Sealant
- PROSEAL 890
- PS890B-1/2 SK654
- PS-890/B
Restrictions
Restrictions
Restricted
Hazardous
Yes
Dry Ice
No
Precursor Licence
Export Licence
FEDEX Restriction
Supplier Disruption
no
Recommended Alternatives
Hazardous Material
Price matched
100928
$85.12
excl VAT
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Shipping Information
- Orders over £100 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.