My Grizzly G0555LX came with roller bearing guides. Doing some research here and elsewhere online I found lots of folks saying that solid guides are better for green wood than roller guides. Swapping mine out for solid guides made a big difference in reducing the amount of gunk buildup. It seems that the solid guides, if adjusted pretty near snug to the blade, scrape the blade as you go vs. roller guides that just compact it onto the blade. It did not eliminate it, in fact I need to go clean up today from cutting wet maple and birch, but it did help a lot.
Don't know what band saw you have but Grizzly has the guide holders and solid guides to replace the wheel guides for their saws. Carter is one maker that has guide holders for band saws. I didn't like the guides Grizzly supplied. They seem to be some sort of plastic that melts when the blade rubs against them much at all. I replaced them with Cool Blocks a few days ago. We'll see how they work over a bit of time.