Quick View

Naftoseal MC-238 B is a two-component, manganese-dioxide cured polysulfide polymer system providing excellent fuel tank and fuselage seals. The B-2 denotes that this product has a 2 hour application time.

 See Options
Basket
Skip to main content
  • basket icon Order & Quote Functionality
  • door icon No Minimum Order Value
  • paper icon Technical Document Library

Naftoseal MC-238 Class B-2 Fuel Tank & Fuselage Sealant

Silmid P/N: VAR0000996
From $49.98 (excl VAT) $49.98 (Inc VAT)

Naftoseal MC-238 B is a two-component, manganese-dioxide cured polysulfide polymer system providing excellent fuel tank and fuselage seals. The B-2 denotes that this product has a 2 hour application time.

Data Sheets

Download the Naftoseal MC-238 Class B-2 Fuel Tank & Fuselage Sealant technical data sheet (TDS) and the Naftoseal MC-238 Class B-2 Fuel Tank & Fuselage Sealant 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.

Product Information

It has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to the chemicals and petroleum products used in the aircraft industry.

Naftoseal MC-238 Class B 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. The mixed compound is a thixotropic paste easily applied by extrusion, injection gun or spatula and it has excellent tooling properties.

The curing time may be reduced considerably by increasing the temperature (up to 60 °C / 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. Usually, in the case of most epoxy resin primers, surfaces need not be additionally prepared with an adhesion promoter to improve adhesion. PUR and EP topcoats as well as composite components should be pre-treated by the Naftoseal MC-110 Adhesion Promoter.

Shipping information

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.