Sikkens "Cetol SRD" stain became my favorite after buying it at a lumber store 45 minutes away from my house a few years ago. The local Home Depot started to sell it so I purchased a gallon last month for my outside deck. However, the brand name was slightly different ("Cetol SRD ProLuxe").
I"ll never buy "ProLuxe" again because it leaves a blotchy, non-uniform appearance after one coat. The stain was applied to relatively new pressure treated wood that was stained a year ago with Sikkens stain.
It appears to me that the "ProLuxe" stain is absorbed more easily into areas that are subject to foot traffic. Areas under tables do not absorb the stain as easily leaving a shiny, glossy appearance. Application of a second coat leaves a uniform, glossy appearance.
This stain may be okay for new wood with the proper moisture content.
I'll buy Sikkens "Cetol SRD" again but not the "ProLuxe" version.
If you HAD Sikkens and can no longer find it, it's because PPG bought out Sikkens. If you're trying to match the former color of your Sikkens to the same color by PPG, look at the Sikkens labels first, and you'll find a code. For example, the following code appears "SIK240-005" on a can of Sikkens Natural Oak. Now look at the label on Home Depot's PPG Proluxe. The following code appears: "Model# SIK250-005-01." Ignore the discrepancy between the "240" on the Sikkens can and the "250" on the Home Depot's PPG Proluxe can. It's the "005" on BOTH cans that verifies a match.
Easy to apply and soaked into the wood very well. Used it on new treated lumber (both sides) on a trailer deck. Hoping for good protection and a non-slick surface when wet. Gave it a 4 only because I don't know if the surface is slick when wet, otherwise it was a 5.