Modern diesel engines require gaskets to seal a variety of components, including fuel systems and control units. RTV silicones have been used in and around the engine for many years, being chosen for their flexibility and ability to withstand high temperatures. For use within a diesel engine, the gasket material must be able to withstand the temperatures generated from the engine – but most importantly, must be able to withstand the continual contact with diesel fuel.
In general, silicone RTV sealants are prone to attack from mineral oils. To overcome this problem they can be formulated using fluorosilicone polymers; however, the dramatic increase in costs usually prohibits their commercial use.
The good news is that our sales partners ACC have taken one of their patented acetone cure RTV silicone sealants and carried out extensive testing to prove their suitability for applications involving contact with both conventional and bio-diesel fuels.
These tests proved ACC AS1810 suitable for use with conventional and bio-diesel when used as a gasket material in conjunction with mechanical fixings.