Gluing cables (☉_☉)

I don't see any problem with the idea. I don't imagine that the glue would provide thermal insulation.

Alternatively, glue some oval conduit into the chase and thread the cables through once it has set.

Rather than have an intuitive reply (suck and see), the chemical effect on the insulation material should be sought from a cable maker but they would also require the chemical composition of the sticky stuff.

Jaymack  

Important to check that the adhesive chosen does not 'etch' i.e. behaves like a solvent weld and attack the cable.  Assuming that is OK, it ought to be no more of an issue than any other means of temporary attachment.

How do you hold it in place while it sets, and how long before you can let go ? I might worry about it moving and getting stuck in the wrong attitude or dripping sticky glue onto something expensive.

Having said OK, I must admit I share your eyes roll feeling however -it does seem like a dog rough idea - but there may be cases where hammering clips is not really the right thing to do - walls treated with various damp proof measures come to mind, or very hard  or very weak blockwork - after all chases can be cut with a twin disc cutter and vaccum extract with almost no disturbance compared to hammering the plaster off the other side of the wall...

Maybe it is like the trick with bits of bread  to solder fittings on a pipe that insists on dripping a bit, ugly but one to keep in the back pocket for get of jail use

Mike

Neither Hot Melt or Grab Adhesive rely on solvent welding so 'should' be alright.

Hot melt solidifies quite quickly and grab adhesive would hold straight away if the cable is already wanting to be in the chase.

Manufacturers never want to stick their neck out so would probably be difficult to get them to say yay or nay

I wouldn't like to be the poor beggar who has to follow on from a job done like that. A simple small job request to relocate an accessory a few inches to the left or right or to raise slightly until then you find that some beggar has 'glued' all the cables in place.

Agreed if it was along the whole length, but if blobs at 300mm c/c doesn't feel any more harsh than clips at the same spacing

Update: I phoned a well known manufacturer of grab adhesives and they said they haven't tested them for this application (no surprise) and also gave a cause for concern, Plasticiser Migration. Over time the plasticiser could migrate out of the cable and leave it brittle. That would apply to both PVC and Polyethylene insulated cables. That falls into the doesn't play nicely category.

They did say that they have tested, and it's OK, PU expanding foam but that sounds a nightmare.

They thought hot melt may be less likely to have Plasticiser Migration issues, but again they haven't tested it and I don't think they are big in that market.

I hate expanding foam too - it is the stuff of the devil when chucked about with gay abandon by builders to cover up a dodgy job, and plumbers seem to be the worst culprits. The stuff can cause all kinds of derating issues when it's use is not thought through.

Yes, but don't you bless the electrician who came before who has used capping or oval conduit?

That's why I suggested it. It would also protect the cable from any solvents.