Thanks for sharing the update. I'm glad all worked out 🙂. I like the product but for large areas I still use cement or lime/cement mix All the best 👍

Thanks 👍 If your wall is nicely flat you can go on it on one coat, if the wall is very rough that would result in very uneven thickness of the render than I would recommend scratch coat first, just to even it up. Also, if it's hot dry day spraying some water on the wall prior application is very helpful

@mrfxr1695 great thanks. I'll scratch then as its a concrete block wall.

Many thanks for kind words🙂👍 All the best

I agree with you there. Almost no crazing happens when I spray some water on it during curing

Thanks Mark That is a good idea, it makes all the sense Cheers 👍🙂

I hope it all went well 👍

I agree, brickwork has to be sealed. I used exterior grit sealer. I wanted to test performance of OCR, because OCR stands for One Coat Render. I used it exactly as suggested by manufacturer. Seal the surface, no mesh, one coat. It crazed on brick. I also tried it on concrete block, no sealer( I've sprayed blocks with water hose) one coat in two layers, wet on wet(with mesh on bottom layer) it came out perfect. It all depends on surface, and exposure to sun and wind. I will continue to use it on small surfaces where I can benefit with one coat application, but for any larger surfaces I still prefer traditional scratch coat, then top coat with sand/cement and sand/lime/cement and render mesh if necessary

I agree 💯 with you. That would be bullet proof application, but I wanted to test OCR as it is instructed on the bag, because they claim to be O-ne C-oat R-ender. Applying base coat 3 days ahead defeats the object of one coat. In that case just a traditional cement render could be applied(scratch coat and top coat , no need for mesh) . It would have been cheaper. OCR is good idea because it is saving labour cost on small job applications by completing it in one day All the best 👍🙂

I am going to use rendaid and this weber one coat ocr on 130+ year old outside garden border walls. As you can imagine, very uneven surface, painted over the years. Obviously will wash walls done with algae remover and ensure anything loose removed. Does the wall still need to be bonded prior to the Rendaid or will that be sufficient. Thanks in advance

Must be sun. In two days I'll go back to the job where I did a section of the wall on Friday and let you know if I had any cracks on it.

@@mrfxr1695 you know you filled your cracks did you prime it at all or did you just use water and then sponged it in?

@@craiggraddon5102 I've just brushed some water over it and then used pointing trowel to push OCR in, scraped it flat and than sponge it gently

@@mrfxr1695 thank you I’ll do that tomorrow then

Maybe suction on brickwork ? Try rendergrip next time to control suction? Just a idea think it is prone to spider crack the ocr

Thank you Khaled, I don't need any help at the moment I wish you all the best 👍🙂

Yes I am 👍

It is still good now, almost a year later. It is a good product 👍

@@mrfxr1695 great to hear!

Depends on wind and sun exposure, about 4 hours

Once fully set, it's weatherproof. Just make sure it doesn't rain on the day you're rendering

It's about 0.9 m² per bag for about 16mm thickness. It should to be protected from direct rain and frost in first 24 hours. Also, with direct sun or wind you can spray some water gently over the surface to prevent rapid drying

@@mrfxr1695 I meant what £ cost per metre square for this product to the client, obviously if it’s a small area you’ll probably make it up as you go along or charge a day work rate.

@@Happytruth I don't have meterage rate for anything , and I assess every job individually depending on complexity, access, preparation needed, etc. Usually, on rendering, material cost is negligible

@@mrfxr1695 I usually play it like that also unless they are long or big walls with lots of metres. I may try this stuff when I get my next inquiry, suppose if you can spread ordinary sand and cement this must be easier.

@@Happytruth spreading is as easy as regular stuff

I don't really know, I've never done it

Yes,prime and silocon it

Thank you 👍