Skip to main content

Naftoseal MC-780 Class C2 130ml Techkit-130 IPS04-05-001-21

Naftoseal MC-780 Class C2 130ml Techkit-130 IPS04-05-001-21
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
£42.24 excl VAT
£50.69 inc VAT
44 In stock
Bulk discounts
£42.24 + VAT
£40.13 + VAT
£39.07 + VAT
£38.02 + VAT
Please note: The shelf life remaining on receipt may be less

It is designed for interfay surface sealing and wet riveting of fuselage components. and has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to the chemicals and petroleum products used in the aircraft industry. Additionally it was developed for a service temperature between -55 °C (-67 °F) to +130 °C (+266 °F) and withstand a short-term temperature of +182 °C (+360 °F). NAFTOSEAL® MC-780 Class C maintains its flexibility and bond strength on most metal substrates like aluminium, stainless steel, steel, titanium, composite and many coatings under extremes of temperature, weathering and stress. NAFTOSEAL MC-780 Class C combines low viscosity, for ease of mixing, with a high thixotropy giving good application characteristics. It can be effectively applied by extrusion, by injection gun, or by using a roller coating technique. The low viscosity of MC-780 C means that it is easily squeezed from interfaying surfaces during the assembly process. MC-780 C has a unique „self-filleting“ characteristic. NAFTOSEAL® MC-780 Class C can be mixed by MCI-Mixer (Techkits as well as Semkits) or by appropriate 2-component mixing and dosing systems. The curing time may be reduced considerably by increasing the temperature (up to 60 °C or 140 °F max).


  • Sealing fuselages
  • Sealing fusel tanks


  • AIMS 04-05-001, 04-05-012

Orders over £50 placed online will now qualify for FREE UK Mainland delivery*

Orders under £50 placed online for UK Mainland delivery is £6.95*

Orders requiring Pre 10.00am Next Day delivery has also been lowered from £35.00 to £19.50** 

International delivery (door to door delivery) is available for selected countries worldwide. Shipping will be automatically calculated based on the weight, location and hazardous nature of the goods. Customers can also choose ex works to arrange their own collection.
Please refer to our delivery page for more information.

Document Downloads
Sil-Mid Limited DO NOT GUARANTEE that the information on this page is the most up to date information available from the manufacturer, there are times when updated information is released and we are not made aware immediately.