Spar Urethane / Turps and low temps ?

[Ryan560]

I use almost the same mix, I keep it in a tall wide mouth canning jar in my basement which is around 60 degrees. The canning jar has one of those 2 piece lids, I put a piece of ziplock bag between the 2 to help give a better seal.Give it a good shaking a few times a week. I haven't had a problem with it skimming over yet and I've had this batch for around a year

[Rockfish9]

cold will only slow down the process.. my shop stays around 60 year 'round... air is the culprit ( as others have stated) another reason i went to the dip tubes... there is very little surface area in comparison to the volume of fluid.. mine have been in the tubes since october and have never skinned ( a mixture of Urethain/tung oil and oderless mineral spirits).. after each session the tubes are capped off...and that mixture is from last season..when Im done building for the season... I strain out the mixture through a paint filter to take out any forgien matter and fill gallon paint cans full... cover with plastic wrap and install the lid...and put them on a shelf until next fall...

[Muskyslayer96]

Any issues with adding a layer of plastic wrap before I screw the lid on (will the turps cause any problems with it)? I use a one gallon glass pickle jar!

MS