Ok so I using Upol quick sand car bodyfiller and I have used it in small amounts three or four times and each time it has been harder to work with. Should this be happening? Could it be it has been at too lowa temperature too often, would sticking it on top of my aga for a few minutes help it? I have never used this stuff before, and dont really know how it should behave... It is the same as Bondo/P38
Did you mix the hardener with the whole batch or something? Or it might be you kept the can open to long and it hardend. After a week or so the bondo w/out the hardener will harden.
>>Did you mix the hardener with the whole batch or something? I am not that stupid The longest it may have been open is 5-10 minutes at a time. I am just sure it has become harder to work with/mix now.
