The short version
Some optional product links are advertising links. Each one is labelled Ad before you click it. If you make a qualifying purchase through one, we receive a commission at no extra cost to you.
Editorial separation
A commercial relationship does not decide which stain method is published. We first document what the product is for, material suitability, label cautions and the treatment context. A product is not presented as necessary when a simpler compatible step is enough.
Amazon Associates
As an Amazon Associate we earn from qualifying purchases. We may also use clearly labelled affiliate links from other retailers, including eBay. Retailers—not this site—control price, stock, delivery and transaction terms.
Clear labels
A general footer disclosure is not used as a substitute for identifying the paid link itself. Product sections say “Advertisement · affiliate links”, and outbound paid links begin with “Ad”.