Chemetall NAFTOSEAL MC 780C 4 (6 oz / 130ML / TK130 KIT)
SEALANT (TK130) (130ML-KIT)
AERO P/N: 116331
Hazardous Material
Naftoseal MC-780C-4 is a two-part manganese dioxide-cured polysulfide sealant supplied in a ~0.13 L kit with a ~4-hour application window, designed for durable, flexible, fuel-tight sealing of fuselage and fuel tank seams, structural joints, wet riveting, and assembly or repair tasks in MRO and OEM aerospace operations.
Product Features
OEM
-
OEM Part No.
-
Colour
-
Shelf Life in Months
6
Shelf Life in Days
180
UN No
UN1133
Class
CL3
PG
PGIII
ECCN
EAR99
Country of Origin
Germany
Commodity Code
32141010
Product Type
Sealants
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Information
Additional Product Information
Overview
NAFTOSEAL MC-780C-4 is a low-density polysulfide sealant offering an extended 4-hour working life. It is used in aircraft assembly and maintenance where longer application time, controlled extrusion, and neat filleting are required. Teams rely on it for complex sealing tasks across wide temperature ranges.
Key Technical Specs for Chemetall NAFTOSEAL MC-780C-4
- Type: Low-density two-part polysulfide sealant
- Size/Volume: 130 mL (4.4 fl oz)
- Color: Typically gray
- Viscosity/Consistency: Low-viscosity mix, high thixotropy
- Cure/Working Time: Approx. 4 hours (Class C-4)
- Tensile/Peel Strength: Structural sealing grade
- Shore Hardness: Flexible elastomer
- Typical Uses: Structural joints, complex interfaces
Approvals & Specifications
- Airbus AIMS 04-05-001
- AIMS 04-05-012
- AIMS 04-05-014
- AIMS 04-05-015
Typical Aircraft MRO / AOG Applications
- Extended sealing operations
- Complex joint geometries
- Precision fillet sealing
Compatibility & Safety Notes
- Compatible with aluminium, titanium, and composites
- Observe temperature effects on cure rate
Packaging & Procurement
- 130 mL kit for medium-scale tasks
- Supports extended working sessions
Why Chemetall NAFTOSEAL MC-780C-4 is Chosen for AOG / MRO
- Longer tooling time
- Low density with sag resistance
- High-quality finished fillets
Practical Suggestions for Your Team (AOG Mindset)
- Use for complex or multi-stage sealing tasks
- Control ambient temperature to manage cure
Manufacture / Aviation Spec Codes
- Manufacturer: Chemetall
- Product ID: NAFTOSEAL MC-780C-4
Alternative Names & Descriptions
- Naftoseal MC780 C-4
- Extended Working Time Sealant
- Low Density Structural Sealant
Restrictions
Restrictions
Restricted
Hazardous
Yes
Dry Ice
No
Precursor Licence
Export Licence
FEDEX Restriction
Supplier Disruption
no
Recommended Alternatives
Bought Together
Shipping Information
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