Hi Gerald,
Thank you for your enquiry.
If the previous coating was applied 10 years ago, then you will be absolutely fine to now apply some of our Roxil Patio Cream.
I hope this helps, if you have any further queries please do not hesitate to get in touch.
Kind regards,
Mollie
Safeguard Europe Ltd
Hi, I put a new pathway down and applied Roxil Patio Cream, great job. I have a patio out back which about 10 years ago I applied Thompson water seal, I would like to put a coat of Roxil Patio Cream on. Would it be okay? Thanks.