Per the WD-40 website:
"What surfaces or materials are OK to use WD-40 on?
WD-40 can be used on just about everything. It is safe for metal, rubber, wood and plastic. WD-40 can be applied to painted metal surfaces without harming the paint. Polycarbonate and clear polystyrene plastic are among the few surfaces on which to avoid using a petroleum-based product like WD-40."
As an inveterate WD-40 abuser I can tell you that if you use it on unfinished wood, it will leave a greasy stain.
|