I used the Sikkens Cetol 1 & 23+ exterior wood finish on tight knot cedar, ship lap siding in Eugene OR. I experienced cracking and peeling on the southern and western exposures after 2 years. Manufacturer was not at all helpful. Has anyone else experienced this type of problem? So far, the only way out of this that I have come up with is to sand and refinish. Any ideas or suggestions? Your input will be greatly appreciated. I would also like to hear from those who have dealt with Sikkens in the past; good and bad experience.