Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Using a circa 1968 Ariens.  The inner part of the chute, especially at the angle, is a rusty and heavily dimpled area. 

What's good to coat the inner part of the chute with so snow, especially slushy EOD snow, won't stick to and clog it.   Am I better off using a really slippery high gloss paint first, just coating the rust with silicone... what's a good prep and finish?

I've read of after market impeller kits that'll throw snow a great distance and imagine that'd help, but that's a lot to add to this old guy.

Thanks.