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Naftoseal polysulphide aircraft sealants for OEMs and maintenance are specifically designed to meet the requirements of the aerospace industry. Benefit from a full range of approved, easy-to-use, eco-friendly sealants and sealant removers. Naftoseal sealants offer you eco-friendly properties: all components are chromate-free, solvent-free or very low in solvent content. The application characteristics boast good thixotropic properties (no slump), fast tack-free and cure rates to enable higher production rates.

These advantages of Naftoseal sealants are even further enhanced by low-temperature flexibility, good adhesion to various substrates and an excellent resistance to numerous aerospace chemicals. 

Click here to see our full range of Naftoseal products.

Product Spotlight

Naftoseal MC-650 Class B-1 Fuel Tank Sealant

Naftoseal  MC-650 Class B is a two-component, manganese-dioxide cured, liquid polysulphide polymer system providing excellent fuselage seals. 


  • Flexibility and good bond strength
  • For use on most metal substrates
  • Great under extreme conditions of temperature
  • Pourable, slighly thixotropic liquid

Naftoseal MC-780 Class C2

Naftoseal MC-780 Class C is a two-component, manganese-dioxide cured, liquid polysulphide polymer system with reduced density, providing excellent fuel tank and fuselage seals.


  • Provides excellent fuel tank and fuselage seals
  • Designed for interfay surface sealing
  • Outstanding resistance to aviation gas and jet fuel
  • Resistant to chemicals

Naftoseal MC-115 Adhesion Promoter

NAFTOSEAL MC-115 is a one-component adhesion promoter for polysulfide sealants.It contains a mixture of solvents and surface-activating substances.


  • Used to prepare metal an solvent resistant surfaces
  • Contains solvents
  • Contains surface activating substances
  • One component