For those who have had problems with the slide gate at the bottom of the spreader sticking and getting gunked up I used talc powder that my local John Deere puts out for for use in its ag planters and it works great! I have tried spraying with silicone in past with not much luck...PG suggested using car wax on the slides which was a pain. With the talc powder I fill my hopper about half way then add 1 tbs of talc then fill hopper and spinkle some more on top. It started raining today when I was spreading and it didn't foul up...before anytime it got humid it seemed my gate would gunk up. I don't know if regular talc you by at the drug store is the same as this but looks the same.