Troubleshooting | Concrete Lab Support

“I have demoulded my worktop and there are a few bubble holes in a couple of locations. How do I fix this?” [customer question]

We have a product specifically for this purpose and in fact filling in bubble holes or pinholes etc should be considered part of the process. Here is a link to the product in our store – Smoothing Paste

I’ve read that concrete can suffer from water stains. Is this true?

Water will cause marks if the sealer has not been applied properly or has not been maintained. We recommend that the concrete is waxed every so often to add an extra layer of protection. Just like a timber worktop if … Continued

Will Concrete Stain?

If not sealed properly then yes. We have a range of sealers we recommend. We also recommend that the concrete is waxed from time to time and that any spillages such as vinegar, lemon juice, wine, coke etc are wiped … Continued

My concrete has stained. How do I fix it?

Concrete will stain if it is not maintained and spillages are not cleaned off and left. That said all is not lost and stains can be removed and repaired. Assuming that the concrete has not been waxed and the underlying … Continued