DIY - what's best to fill a channel in a wall?

Over Clocker

Over Clocker

Over Clocker

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Hi guys,

I've made a few channels in our walls to put some new cables in. I've covered them with the pvc stuff which fits nice and tightly.

I've just wondering what to use to fill the channel now? It's about 1 and 1/2 inch deep, but with the cables and pvc channel thing in, prob about 1/2 an inch?

I imagine need some sort of bonding stuff so that it sticks nicely?

Also, the filler needs to be either white, off white or cream sort of colour so that the paint blends nicely.

Cheers :)

Mal
 
Have just done this myself to put cables into flatscreen on the wall. I cut a channel , put cable trunking in then plastered over the top but left about a 5mm gap to the surface.

I then used normal filler in the gap to finish off so you dont have to seal the plaster in with pvc and risk getting the shadow effect when you paint.
 
Drukk said:
Have just done this myself to put cables into flatscreen on the wall. I cut a channel , put cable trunking in then plastered over the top but left about a 5mm gap to the surface.

I then used normal filler in the gap to finish off so you dont have to seal the plaster in with pvc and risk getting the shadow effect when you paint.
Click to expand...

Ahh good idea!!

Will invest in some good filling knives too then??
 
In my first (very old) house I recabled the whole place and used bonding and top coat plaster along with PVA adhesive before the base coat.

There are some single coat plasters than can manage deeper fills, however its important to use something that can be sanded if needed in case you don't get a perfect finish, and also doesn't cause problems with paint finish if you're painting directly over (even after applicable sealant).
 
Get some quick set cement. Honestly this stuff is great. Mix a bit up with a tad of water and work it in. It will go off in a hour or so.

Then use a light skim of filler, sand and redo where needed. Wait a bit, paint.

If you use filler then you are open up to it cracking or taking days to set. Also with plaster, you have to wait ages for it to fully dy and chances are it will simply suck up your paint and crack.

I used this method in my bathroom to make good a channel for some power leads. I foolishly tried filler, then used the QD cement. Got a very strong smooth result in hours.
 
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