There is a gold coloured Loctite sealer, at the moment I'm using a Black coloured Loctite sealer, smells strong but it has sealed my problematic Rocker Box ( with the help of two thickness's of gasket), also just used it on the alloy sump plate that refused to seal, time will tell if that is sorted, I could see no reason why it leaked althoug gasket,mesh,gasket, alloy plate is a lot of surface.