Hi There,
There are 2 major causes of a sticky situation, (1.) there was excess oil left on the pan, it was not wiped dry enough and or (2.) The oven temperature was too low and or not heated long enough.
You will get many different suggestions as to how to do it, because there is no 100% correct way to do it; everyone experiments a little and eventually finds out what works for them.
Here is what I have tried, what worked, what didn’t work and what I have learned:
1.) When I first attempted to restore cast iron I searched the net and found an article that praised the virtues of using flaxseed oil; it was well written and seemed to have a scientific explanation as to why it was the best way to do it. I attempted it, I followed the instructions exactly with high hopes………but it was a failure, it chipped and pealed and turned me off trying to restore CI, at least for a while.
2.) I started the hobby again, researched more, learned how to clean using lye and or electrolysis and that you should use an oil with a high smoke point and heat it past it’s smoke point for up to an hour or so. I learned that is was most important to wipe the pan clean after you oiled it and that blue paper towels were good as they were lint free and I did that. I was pre heating the pan up to 200*, applying the oil and wiping it what I thought was very dry looking and then heating it up to 475 – 500* for an hour or so. However after several coats of oiling and heating I noticed a couple of my pans were blotchy and some of the lettering was full of dried oil………what the!!!
3.) I did more research and found this Forum and have learned a bunch! Here is what I have learned that works for me: (a.) once you have heated it up to 200* then applied a liberal amount of oil, it is very, very important to get as much of it off as possible and old t-shirts works much better than blue paper towels, (b.) once you have wiped it down, heat it up again to 300* for a while then take it out of the oven and wipe it down again; you won’t believe there was that much oil left on after the first rub down. Then it is back in the oven at 475 - 500* for an hour to two hours or so, (c.) use something like a tooth brush to clean out the lettering so it does not pool in there and fill up.
4.) I am now using Criso and so far it is working great for me. I usually put on a minimum of 3 coats and sometimes more.
Hope this helps!!
Cheers!!!.......