zaino<>DuraGloss

The bolded being the key. I have always assumed only the largest detailing product sellers (Meguiar's, Duragloss, Chemical Guys, UPP, etc.) own the plant and equipment to blend their own products. For the most part the smallers guys contract out their products' blending to companies who have such equipment to do so. Does that mean those who contract out their blending don't have their own products, only seller's products with their name on them? Not necessarily. That may be the case in some instances but I doubt all of them. Companies like Chemical Guys used to advertise on their website (may still do) that they will make your product to your specifications. UPP makes the Ultima Brand.

So are Zaino and Duragloss the same product, I doubt it. Are they very similar? I guess it is possible.