Instruct: Classify Amazon reviews into positive or negative sentiment
Query: WARNING to Painters and Professionals

Trimaco changed their Red Rosin paper early spring last year, they sold it under the same SKU number. However, the paper is very different, the color for one, is Brighter Pink and the weight is much thinner. If you spill any water or thinner or lacquer the pink color stains your floor underneath PERMANENTLY it will not come off. Wood floors , tile and Vinyl!Being paint professionals for over 10 years, we contacted Trimaco and all we got was the run around.