Naftoseal MC-780 Class C-2 Fuel Tank & Fuselage Sealant
Naftoseal MC-780 Class C is a two-component, manganese-dioxide cured polysulfide polymer system with reduced density providing excellent fuel tank and fuselage seals. The C-2 denotes that this product has a 2 hour application time.
Data Sheets
Download the Naftoseal MC-780 technical data sheet (TDS) and the Naftoseal MC-780 safety data sheet (SDS) from Silmid today. Once you have logged in or signed up, select the product size you are interested in and the datasheet will be visible for download if one is available. Please login and select size/colour from the dropdown to access datasheetsProduct Properties
Specifications
Please Note: Specifications and approvals are subject to change at any time. Users should always consult their AMM or the OEM when selecting products to ensure items have the release needed. Only specifications listed on the order confirmation will be certified on the Silmid CofC.
Product Information
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 shortterm 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 means that it is easily squeezed from interfaying surfaces during the assembly process and it has a unique self-filleting characteristic.
The curing time may be reduced considerably by increasing the temperature (up to 60°C or 140°F max).
Surface Preparation:
To obtain good adhesion, clean surfaces with appropriate cleaners (e.g. Chemetall's Ardrox products like Ardrox 5529 or Ardrox 5575) to remove dirt, grease and processing oils just prior to sealant application. Use lint-free rags or paper towels that are free of oil. Always pour cleaner on the cloth to avoid contamination of the cleaner supply. Clean one small area at a time, quickly wiping it dry before the cleaner's solvent evaporates to prevent redeposition of oil, wax or other contaminants. PUR and EP topcoats as well as composite components should be pre-treated by the Naftoseal MC-115 Adhesion Promoter.
Additional Content
Shipping information
UK Delivery Options
Standard UK Delivery
£12:00 (excl. VAT) Free Delivery on online orders over £100.
Orders usually delivered 24-48 subject to stock availability.
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UK Priority Next Day Services
UK Next Day Delivery: £19.00 (excl. VAT)
Express Pre 10am Delivery: £30.00 (excl. VAT)
Orders placed before 3:00 pm qualify for next day delivery.
Service available to eligible postcodes. If unavailable, your postcode is not covered. FedEx does not guarantee timed deliveries.
Priority Same Day Service
£250 (excl. VAT)
Orders placed online between 8:00am - 11:00am by UK business customers are eligible for Priority Same Day Service. We cannot guarantee Same Day Delivery for orders placed after 11:00am.
Additional Costs: £150 (excl. VAT) for Dangerous Goods Declaration if required.
Click and Collect
£0.00 (excl. VAT)
Your order will not be immediately available, you will receive an email confirming when your order is ready for collection. You must bring your order confirmation with the Sales Order Number.
Trade Counter is open weekdays from 8:30 am to 4:30 pm, located at the front of our distribution centre.
Same-Day Collection available for orders placed before 3:00 pm.
Orders not collected within 7 working days will incur a 25% restocking fee. For international orders, this period is extended to 14 working days.
Additional Delivery Options
Additional delivery options are available subject to product selection at checkout.
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Export delivery options are available subject to items in basket and delivery destinations, prices are calculated at checkout.
Door to Door
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FCA
Additional packing costs may apply if goods are to be shipped by Air Freight. They will be handed to the chosen carrier with the required paperwork according to the free carrier terms as set out in INCOTERMS 2020. Please note that you agree to pay the applicable carrier charges by agreeing to this delivery option.
Please refer to our delivery page for more information.