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Hi,
I’m repainting this porch. Old and couple layers of paint.
I have limited resources so diy’ing.
I’ve high pressure hosed it, up to the de-flaking loose paint and sanding it back with hand 120grit sander. I’ll give it a good go-2days.
then I’ll Berger Active Clean it and ain’t with white knight Ultra Pave quick dry 2x coats.
1- image shows close up spot where I’ve sanded de-flaked.
2- image 2 is the area I haven’t sanded yet.
3- is the tools etc.
Question- is this approach enough? I’ve read another post that said wouldn’t recommend belt sander /paint stripper too much labour. But I’m worried about it peeling /looking bad. I don’t really have means to belt sand.
thanks!
Welcome to the Bunnings Workshop community @jhb. It's brilliant to have you join us, and many thanks for your question about applying concrete paint.
When determining whether your current efforts will suffice, it's essential to remember these concrete paint products are specifically designed for application on bare concrete or a previously painted surface that is in good condition. To the best of my knowledge, the Rustoluem concrete paint is the only option suitable for a deteriorated painted surface, albeit with limited colour choices. Other brands do not provide a warranty for their products on this type of surface due to the risk of potential delamination and subsequent peeling.
Based on my personal experience and other members' successful endeavours, I believe the paint will adhere perfectly fine. However, the durability of these coatings can only be determined with the passage of time.
I recommend gently running your fingers over the sanded areas. If you cannot detect any noticeable transition between the residual paint and the underlying substrate, chances are you won't perceive any inconsistencies when applying the topcoat. However, I suggest further sanding if you can still feel the painted sections. Just remember to prioritize your safety by wearing a face mask and safety glasses during the process.
Please don't hesitate to reach out if you have any additional questions. We're here to assist you every step of the way.
Mitchell
Typically there is no primer used with the White Knight Ultra Pave @jhb, so there is not one that I could suggest. It sounds like you are doing a good job at sanding the surface and etching so that should suffice.
I'd recommend cleaning and then waiting until after the rain for the painting. You could get it all done before the rain, but it adds another level of stress to the project. Having the paint trying to cure in a wet environment is not ideal due to the amount of moisture in the air.
Mitchell
You won't need to active clean again, but if the area becomes dirty, it might be an idea to give it a quick wash down @jhb.
Mitchell
Afternoon @jhb
Ive been redoing my patio and ran into the same issue with what to paint/what type of paint and how to paint even.
I havnt posted that part of the project yet but my paint job has turned out nicely with a couple of minor issues.
I looked into the types of Bunnings paint for concrete and paint from outside Bunnings. I ended up going with an industrial paint by Nutech. (Both Bunnings and Nutech would be about the same price tho the difference was a multistage process (Bunnings) or just a recoat (Nutech). I ended up with 10L of paint of which I used maybe a Third with two coats. It really doesnt look like it needs a third coat.
My patio looks pretty much like yours, instead of sanding I used a wire brush attachment to my drill to get rid of any leftover bits of flaky paint.
The one issue that showed up was the new paint over the old paint seemed to lift the old paint in some areas. I had three patchs of new paint lift, easily fixed with a paint scraper and for some spots I wasnt sure if I had brushed it with the wire brush so cannot say 100%
The paint went on easily enough and really seemed to penetrate the non painted surface well. The painted sections came up nice. The recomendations was a totally dry surface, between 10-30deg C and no rain plus not earl in the day or late due to potential dew.
It rained about 3 days after the painting, I did the coats a day apart and prob pushed it closely to the 30deg upper limit. The rain beaded nicely and the surface is not slippery at all.
Dave
Hi @jhb,
Active clean is really for tough stains from oil and grease. Nothing would have changed on the patio in that time, but you'll need to give it a wash down to remove any contaminants that have built up over that period. If you are happy with the appearance and smoothness after the original sanding you can proceed with painting after cleaning.
The surface must be completely dry before painting, so best to wait for a few days of warm weather to dry it out before painting.
Mitchell
