Denso tape benefits?

vyv_cox said:
It has active anti corrosion ingredients. On North Sea offshore production platforms, tubulars wrapped in Denso survived months at hundreds of feet below the surface, emerging bright and shiny. Nothing else did as well.
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I can vouch for that. At one time, everything and anything was covered in it. It was hell for the maintenance team, getting it off was a messy job resulting in the grease getting all over tools and hands. Probably even worse than when you use duralac. But it worked. It used to be used on Ex boxes and kept the flame paths in perfect condition. Then it was instructed to not not be used due to it impeding the flame path. Within a couple of years the flame path surfaces all stared deteriorating due to corrosion from water ingress. Probably the only place I'd use it on my boat would be something tucked away that I never intended opening again, good as it is.
 
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I have a roll of deso tape, extremely useful , darn sticky, had a toilet to drainpipe join that absolutely refused to seal using all the proper fittings, ended up using the deso tape to seal it. Worked for many years till the lot was replaced.
It was bought for a steel pipe I needed to bury as far as I know that's still ok to.
 
It’s allowed to be used on flame paths, but just one wrap, not multiple wraps. Lots of documentation on Exd requirements now state this. Also, laid on, not pulled so tight that it traps the expanding gas which causes it to compress and exceed the ignition temperature of the gas outside the box.

This argument still gets raised today but has been put to bed and is supported in CompEx training and C.A.s
 
The ACF grease, and others like it, are superior on a typical yacht. DAB it over Teleflex cable links, steel adjustment screws et cetera and it just sits there doing its thing, and not getting in the way. Denso tape is good , but it can be a bit overkill and excessive on a yacht.
 
RunAgroundHard said:
The ACF grease, and others like it, are superior on a typical yacht. DAB it over Teleflex cable links, steel adjustment screws et cetera and it just sits there doing its thing, and not getting in the way. Denso tape is good , but it can be a bit overkill and excessive on a yacht.
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I agree, mostly not appropriate. However, as I wrote on another thread, it has done a great job on the steel case of my windlass drive motor that is regularly splashed with seawater. Wrapped in polythene to cover the stickiness.
 
RunAgroundHard said:
It’s allowed to be used on flame paths, but just one wrap, not multiple wraps. Lots of documentation on Exd requirements now state this. Also, laid on, not pulled so tight that it traps the expanding gas which causes it to compress and exceed the ignition temperature of the gas outside the box.

This argument still gets raised today but has been put to bed and is supported in CompEx training and C.A.s
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I'm talking close on 30 years ago when it was "banned". You are correct, since then, new rules are in place with respect to its use. Possibly due to the flame path failures when its use was stopped.
 
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