Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sikkens Cetol SRD Natural Failure

We stained a very large deck at our lake home in West Central Minnesota with this product. We followed the directions to the letter and had waited a full year to allow the treated lumber to weather. We have just completed our third winter and the product has failed. The 10 year warranty is not supported by the paint store because "this is Minnesota". Do not use this product. I am looking for a product to cover the Cetol SRD. Can't in good conscience give it any rating. This was the most expense of the brands we looked evaluated. Back to Olympic Stain!!!!!!!!!