Hello,
Thank you for your enquiry.
The effectiveness of the product will be subjective to any previous treatment of your sleepers, the older the treatment the better the oil will be able to absorb into the decking, whereas if the treatment is newer (under a year) it is likely the oil won't absorb properly.
Thank you for using Q&A.
Answered by: Screwfix778
Date published: 2022-07-04