I was surprised to read mark's comment about the shelf life of vinylester resin. Which is helpful to me because I happen to be in the middle of a project using that type of resin and I have some which I was planning to use that is now several months old.
Never thought of that issue so I looked for more info. Turns out he is correct and here is a sheet on it that describes indications that it has "turned" and should be discarded and what will happen if you do use it. http://www.international-pc.com/products/linings/ceilcote/Documents/cc40-vinyl-ester-shelf-life.pdf Ceilcote Technical Bulletin - international-pc.com<http://www.international-pc.com/products/linings/ceilcote/Documents/cc40-vinyl-ester-shelf-life.pdf> www.international-pc.com Protective Coatings All products supplied and technical advice or recommendations given are subject to our standard Conditions of Sale. Ceilcote Technical Bulletin ________________________________