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LJF PR1440Mb1/2 654D Fuel Tank Sealant Semkit 120ml Dassault Cr

LJF PR1440Mb1/2 654D Fuel Tank Sealant Semkit 120ml Dassault Cr
LJF PR 1440 M Class B is a filleting compound and fast cure designed for sealing integral fuel tanks and pressurised cabins.
£44.62 excl VAT
£53.54 inc VAT
No stock - lead time 94 days
Bulk discounts
£44.62 + VAT
£42.39 + VAT
£41.27 + VAT
£40.16 + VAT


  • PR 1440 M class B was developed for use over a temperature range of - 55°C to + 135°C with intermittent use to 180°C, and with outstanding resistance to aircraft fuels (aviation gasoline or jet fuel), petroleum base lubrificating oils, and to deterioration by hydraulic fluids type phosphoric ester.
  • PR 1440 M class B is a two-part sealant, based on polysulfide liquid polymers and manganese accelerator.
    After mixing, it cures at room temperature, giving a strong and flexible sealant., without shrinkage, and with excellent adhesion to aluminium, titanium, stainless steel, and other metals.
  • The mixed compound has a high thixotropy ; readily applied by extrusion or injection gun, it does not flow from vertical or overhead surfaces.


  • Dassault
  • CR

Need nozzles? Take a look at the Semco 420 Standard Nozzle NOZZ220544 and buy more when needed. And why not look into Semco Model 285-A Semkit Mixing Machine to make the process even easier.

Need a gun for application? Semco Model 250-A Pneumatic Air Gun 6oz Kit GUN2500000 is a great tool for the Semkit or the Hand Held (Manual) Skeleton 160ml / 6oz Dispenser Gun TEAE05280.
More guns kits and retainers available in different sizes. Please take a look at our range.

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.

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.