This is the highest spec and latest sillicone sealer that THREEBOND manufacture, grey in colour (as aluminium), this sealer is very tough and stable. It can be used instead of gaskets on metal to metal joints and also supplement solid gaskets providing a tough and resistant joint to pressure, shocks, vibrations, petrol, oil, gear oil, liquid coolents, LPG and water.  It can fill gaps up to 2.5mm making it a very universal sealer for sump pans, grommets, and water pumps as well.

It`s a one component silicone which remains flexible and has no shrinking effect whilst curing.  It remains stable between -60deg C and +250 deg C.

Most people think of silicone as RTV, which has that 'pear drop' smell, this is light years ahead of that - it has no acetic acid in its composition at all. This drys/cures at 2.5mm per 24 hours at 25 deg C giving you plenty of time to assemble your components. The product skins over quickly (curing from the outside in) providing a pressure resistant seal within minutes of assembly, allowing you to fill with oil and test. This is much thicker than 1104 and is less elastic but stronger. I choose this over 1104 when I need a stronger, more complete joint quicker, or a thicker deposit as this can be sculpted into corners like main bearing caps, cam covers, and outer covers where wires or grommets come through.