Plastering over cables in trunking - what type?

koonl

Standard Member
Hi,

My room has had its chimeny breast removed exposing the bare brick behind it. I've had the whole room replastered with Lafarge Easy Finish (Equivalent to Thistle Multi-finish I think), but with Thistle Hardwall then Easy Finish where the breast was. I now need to chase out the wall where the breast was for the AV cabling. The cabling will be in a "skirtingboard conduit" bought from B&Q so it will run from floor to plasma (conduit will be on it's end so to speak). I plan to the have the cap no more than 4-5mm from the surface and I like to know whether I should Hardwall over the chase and then finish off, or should finishing alone be sufficient enough? If I need to Hardwall, is it best to chase a little deeper and hardwall the recess then place the conduit in place and a little more hardwall to ensure it stays in place?

Thanks
 

Event Horizon

Well-known Member
hi!!
i would cut the chase in a little deeper then fix with bonding, as i think the plaster should be used at no more than 3 mil thicknes you might find that 4 to 5 mil might be ok but if it was me i would bring the bonding over the top of the conduit to about 2 or 3 mil from the desired finish then plaster..while im not a plasterer i think you may find that information correct.
best regards
nick.
 

koonl

Standard Member
Yeah I think you are right. a few mm is all that is required. Regardless of the thickness of the finish coat, how different is Bonding to Hardwall?
 

Event Horizon

Well-known Member
hi!!
bonding is the stuff a plasterer uses to dot and dab the boards with, when it goes of its like concrete.
ive just taken a look at the thistle website and i would say the hardwall you have should be fine to use instead of the bonding.
best regards
nick.
 

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