Review on AGS DEK3 Door Ease Lubricant by Yousef Abood

17 years in this house with natural wood finishes etc and I'm finding this product right now? It works amazingly well on our casement windows that were "sticky" (3 years ago an "expert" told us we needed to buy new ones - NO!), patio/patio doors that are painted/unpainted, wood siding. All of our wood is stained, sealed, unstained and this product leaves no stain/stain marks. In fact, I'll have to refrain from using it for almost ANYTHING that requires a quick beep. I love it, highly recommend!