What you will read below is a conversation that took place between me and a reader of mine via e-mail. I am publishing it here after doing some minor editing to make it more presentable for a website format.
When circular saw blades are used to cut green lumber or particularly resinous woods, these gums and resins can accumulate on the blade surfaces. This can cause rough cutting and dull the blade more quickly because of unnecessary overheating.
A quick remedy for this condition, which can be performed easily by any woodworker, is as follows:
Dissolve common household lye in water according to the manufacturer’s instructions. Soak gummed-up blades for about 20-30 minutes. Then rinse thoroughly in clear running water, using a stiff-bristled brush to help remove the gums and resins.