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.

As with all Threebond products thoroughly clean the surfaces, don't leave any oil on them at all, degrease with thinners, apply evenly to one surface only and proceed with your assembly. After use expel any air in the tube and close the cap . Store in a cool dark place.

In my workshop I use this product for modern engines and old alike, cars and bikes. This is a great all-round sealer for any uses including jet ski`s, outboards and marine engines.

 These tubes are 200 ml.

This product is recomended by: 

Aprilia, Honda, Suzuki, Ducati, Yamaha, Kawasaki, Triumph, Harley Davidson

(Buy their sealer and it will probably have 1215 on the box somewhere.)