Replaced my old factory gasket with a Silicone Rope Gasket in my EKO 40 Super 1 less than 5 months old. What a difference the Silicone Gasket makes. The upper loading door opens without sticking. The old factory gasket would seal itself shut with creosote. I tried all the remedies but none worked. Actually, I think some of the remedies caused the factory gasket to break down and it started leaking. I ordered the Silicone Gasket from New Horizons for $50.00 including Priority shipping. Well worth the money. All I had to do was lift off the loading door, remove the old gasket, clean the channel and push the new Silicone Gasket into the channel. I no longer have to yank my guts out to pull the door open. The creosote does not stick to the Silicone.