I stirred it up with a drill and beater and it thinned out slightly but quickly turned back to gel. priced 10l today , $210, ouchIt doesn't expire, it just separates. You need to stir the shit out of it and I mean, get a bit of dow or something and stir it for ages until it gets back to the right consistency. You may be stirring for a good 10 - 15 minutes by the sound of it but eventually it'll come back to good.
na sikkens(stain)it for first 6 years . wish I had gone with oil first up but thanks different rabbit . the thinners worked. 2 hungy still in pocketOne word for product reliability that will last a long time, but is expensive......Sikkens.