Scotch-Weld SCOTCH-WELD EC-3550 FST (400-ml-Kit)
STRUCTURAL VOID FILLING COMPOUND (400-ml-Kit)
AERO P/N: 115596
Hazardous Material
Total Available Stock: 48
UK
USA
48 In Stock (UK)
Available On Request
Expiry Date: 26/Jan/2028
Minimum Order Quantity: 6
Estimated Lead Time: 25 days
£104.74 excl VAT
3M Scotch-Weld 3550 B/A FST, a two-part, flame-retardant epoxy void filler ideal for aerospace use. It cures at room temperature and excels in void filling, edge sealing, and gap filling in metal and non-metal honeycomb structures, meeting FAR 25.853 (a) and (d) standards.
Product Features
OEM
-
Brand
Scotch-Weld
OEM Part No.
-
Colour
-
Shelf Life in Months
12
Shelf Life in Days
360
UN No
UN3077 + UN3077
Class
CL9 + CL9
PG
PGIII+III
ECCN
EAR99
Country of Origin
France
Commodity Code
3214101000
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Information
Additional Product Information
Overview
3M Scotch-Weld 3550 B/A FST is a high-performance, two-part epoxy void filler designed for demanding aerospace applications. Its low-density, flame-retardant formula cures at room temperature and meets FAR 25.853 (a) and (d) fire safety standards, making it ideal for aircraft interiors. This versatile compound delivers exceptional performance in void filling, edge sealing, and complex gap-filling tasks across both metal and non-metal honeycomb sandwich structures.
Key Technical Specs for 3M Scotch-Weld 3550 B/A FST
- Type: Two-part epoxy void filler
- Cure: Room temperature
- Density: Low-density foam
- Viscosity: Paste
- Tensile Strength: High
- Typical Uses: Void filling, edge sealing, gap filling in aircraft interiors
- Shelf Life: 12 months (unopened)
Approvals & Specifications
- Meets FAR 25.853 (a) & (d) for fire safety
- Aerospace OEM approved
Typical Aircraft MRO / AOG Applications
- Aircraft interior void filling
- Honeycomb sandwich structure repair
- Edge sealing in composite panels
Compatibility & Safety Notes
- Compatible with metal and non-metal honeycomb structures
- PPE: Gloves and eye protection recommended
- Handle uncured epoxy with care
Packaging & Procurement
- Available in cartridge or dual-syringe packs
- Ready-to-use kits for small or large repairs
- Storage: Room temperature, away from direct sunlight
Why 3M Scotch-Weld 3550 B/A FST is Chosen for AOG / MRO
- Room-temperature cure simplifies on-site repairs
- Excellent flame-retardant performance
- Durable and versatile in void-filling applications
Practical Suggestions for Your Team (AOG Mindset)
- Keep cartridges for rapid interior repair tasks
- Train teams on mixing and dispensing techniques
- Plan for proper curing time before finishing
Manufacture / Aviation Spec Codes
- Manufacturer: 3M
- Product ID: 3550 B/A FST
- FAR 25.853(a) & (d)
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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