How often should I maintain the Cetol SRD system?
Cetol SRD should be weathered before recoating. Visually inspect the coating and when it appears faded spray the surface with water. If the water penetrates and the wood turns dark due to the moisture, this is an indication that it s time for a new coat of Cetol SRD. If it still repels water, do not apply a maintenance coat. When reapplying Cetol SRD, the surface should be back to bare wood; otherwise the wood may look dark, blotchy, or shiny.
