IIRC black magic's tire shine products are still silicone based. Other products may not clearly say what they are on the bottle, which can make things tricky. I've always liked TW Tire Wax for tires and 2001 for interior, otherwise I dislike TW products generally. I love Megiuar's interior quik detailer and their foam detailer, too. But I haven't yet found a non-spray tire product that I like as much as TW Tire Wax, for shine (flexible shine, if you buff) and staying power (plus lack of slinging). While I'm at it, anyone know what was changed between TW 2001 and F21 sprays?