Hi,

We need to make good some wall chases made by our electrician.

I started ,after advice from my partners' parent, to use wickes one coat. Ok so it was fairly easy to work with as a noob diy'r filling the deep holes about 20mm and leaving maybe 5-10mm to the surface. After a few days and looking at the filled finish (and stopping all work) I'm wondering whether this stuff can give an acceptable finish on top ?

I had a look in the guidance online, and apparently a sponge is needed to bring the finisher aggregate to the surface. I'm not sure about the sponge method as at the moment all I have is a metal, and polystyrene float!

Is it a mixing issue?

Stripping back the wall paper layers in the house has revealed that the previous owners attempted to plaster and failed (this seems to be in white but also occasional grey areas). The porch walls look very flat and pinkish in colour guess that was done professionally.

We'll get a pro in for ceilings, and the wonkey walls!

In my dad's toolkit (he used to be a carpenter by trade) is a small bag of tetrion interior and exterior filler. I've not asked him what he used that for.

Fill the last few mm of the chases with the tetrion and sand.