My house exterior walls are cement – how do I prep it before painting? Here's some photos. I'm thinking maybe a pressure washer but would prefer an easier, less messy alternative if available. I read up on some websites but the info conflicted. But I did read about using KRUD KUTTER KK32 instead of trisodium phosphate??? My goal is to do it right, do it once so it will last as long as possible. I'm thinking of using KRUD KUTTER KK32 to be neighbor friendly (due to over-spray???)
- Do I power wash the paint off, then use the KRUD KUTTER KK32 and then paint or can I skip the KRUD KUTTER KK32?
- any technique for catching the paint to make cleanup easier?
- What paint type is best to use (for a flat finish – white or brown; not sure yet). I've read about using enamel, oil and latex
Please advise
Best Answer
If by cement you mean stucco (which is essentially cement) you need to strip off the layer of paint that is peeling. That's typically done with sandblasting--but not using sand as an aggregate. They typically use a softer material like the husks of nuts.
You then need to paint with a proper stucco paint that will breathe.
It's not a simple job, unfortunately.
The DIY method would be using a lot of elbow grease and manually scraping as much of the flaking paint off that you can with wire brushes.