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Gasketing sealant in pen form

10 March 2019

LOCTITE 518 gasket sealant is an anaerobic adhesive that can cure through light surface contamination. It works well on stainless steel and aluminium without an activator, and has now been made available in pen form.

The pen delivers LOCTITE 518 via a roller, making application easier, with no waste and less mess.

Henkel explains that major causes of failure and leakage of a compression gasket are poor surface contact, the tendency to relax under dynamic load and bolt hole distortion that cause it to crack and tear. LOCTITE 518 fills all voids, resists high pressure and when fully cured maintains clamp load and prevents corrosion. 

The new, oil-tolerant formula ensures a consistent cure in standard workshop and maintenance conditions. Any size or shape can be achieved – no need for stockholding multiple gaskets.  It forms a flexible, high-strength seal that will not tear or decay. It also allows parts to be easily disassembled, even after extended service, by simply applying cleavage load between the flanges.

One company that is already benefiting from LOCTITE 518 is TEREX, a manufacturer of lifting and materials handling equipment. It is now using Henkel's gasketing adhesive to seal cast steel housings on power take off gearbox units.  

LOCTITE 518 is applied along the gasket face with a Trax Roller, which is a large version of the LOCTITE 518 pen. The mating faces are then brought together and secured using M10 nuts on studs that have been secured with LOCTITE 648 threadlocking adhesive. The move to adhesives has provided a much stronger assembly which prevents micromovement between the flanges and any subsequent leaks; it has also speeded up production.

 
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