Originally Posted by
ksn3n3
Thanks Jim. I'm starting to figure out that humidity is probably my problem. Brodak dope is made by Randolph so it should be compatible. Does Wicks sell hobbiest quantities? I don't want to buy a gallon. Would prefer smaller than a quart if possible.
Any dope, in any humidity above 50% +/-, will give one Heck if one does NOT use a "retarder" in the mix. Retarder slows the drying. Here in SE TX even in summer, (especially with the normal high humidity) retarder is definitely required. In winter, same!
Brodak and Sig are Randolph. I have used several aircraft varities and all require some retarder. My shelves now harbor Brodak, as it seems to do better. Brodak spent a lot of time and money getting Randolph to use his formula, some years ago.