How would you prepare textured paint for new colour?

Question

Hello

A first-time homeowner with a horrible beige, textured 'feature' wall. The wall and ceiling are painted in two different boring beige colours:  one flat, one textured - the eighth wonder of the world is why this would be done in the first place. BUT...how do I prepare the textured wall for clean paint?? I am going to just go white given the air con and random power point (the ninth wonder of the world).

Thank you,

Sarah

MitchellMc · Answer

That's an interesting situation @sarah1982.

Now that you've mentioned this, I can clearly see the panel joins across the wall.

Can you tell what these panels are? Are they some plastic or acrylic? I have my concerns with you painting over this, even with the Dulux Precision primer. Sanding with some coarse-ish sandpaper might be needed to key the surface before priming. Potentially some 120-grit sandpaper might do the job. I'd encourage you to do a small test section, wait for the primer and paint to fully cure and try a scratch test to see how well it binds. I'd be hesitant to commit to the entire wall as, at the moment, you're painting onto an unknown surface.

Mitchell

redracer01 · Answer

Hello @sarah1982

Welcome to Bunnings Workshop. After looking at the photos you posted, I just want to be clear on the information that another panel was placed over the standard gibrock wall? It's this panel you are now trying to paint over? Or was it they used a special paint to give you that rendered patch look? If it is a panel it must have a hardened polish finish on top. I can only suggest a very thorough wash with sugar soap to scratch the finish and as @MitchellMc recommended to use the Dulux Precision primer. It should be strong enough to grip on to the surface and provide you with a good surface to paint on. Please keep us updated with your project and if you have any other queries please post it here on workshop.

Cheers,

Red

sarah1982 · Answer

Thanks, Mitchell!

After removing some TV cord covering, it actually looks like they've added a layer of something over the top of the original wall. See pics below. I think I have a bigger job on my hands than I first thought.  I will now need to remove the power point in the middle of the wall, gyprock/fill it, then fill and smooth other gaps where the plasterboards (that appear stuck on, not nailed in) join. I've seen a few videos now on the paint preparation so am comfortable there (clean, sander, the Duluz you mentioned), now it is a matter of really filing in all the gaps and smoothing it all out I think!