TOPCOAT currently has up to 35% off TopCoat kits for cleaning and protecting vehicle surfaces as the main on-page deal, which is best if you are buying kits and want a percentage discount on the product price. That sale applies to sale products only and needs no promo code. There is also free shipping on orders over $100 and a $10 off first order when you sign up to the newsletter, which is aimed at new customers.
If you are buying kits and the item is on sale: the Up to 35% Off TopCoat Kits deal applies. On a $150 kit, for example, the 35% discount takes $52.50 off, leaving a product total of $97.50. The sale is the only discount shown that directly reduces kit prices, so use that sale price at checkout. (example sentence: On a $150 order, 35% off leaves $97.50, a $52.50 saving.)
If your cart is under $100 and not a kit on sale: your best route is the newsletter signup if you are a first time customer and can use the $10 off. On an $80 purchase, the $10 first order discount reduces your total to $70, a $10 saving. If you cannot or do not want to sign up, there is no sitewide percent discount shown, so you will pay full price plus any shipping. (example sentence: On an $80 order, $10 off leaves $70, a $10 saving.)
If your cart is $100 or more and contains any products: free shipping on orders over $100 applies once your order reaches $100. Free shipping is a delivery saving rather than a product discount, so it is most valuable when shipping would otherwise add a noticeable cost. If your cart also contains a sale kit eligible for 35% off, compare the dollar saving from 35% on that item with the value of the saved shipping fee to see which lowers your total more.
If you are a new customer buying a sale kit and the order exceeds $100: the sale price on kits is the clear product saving. The newsletter $10 off is for first orders only and may still apply if the site allows stacking, but the sale terms do not state stacking rules, so treat them separately at checkout.
Our records show up to 35% off is the biggest percentage sale we listed in the 12 months to October 2026, and the site has run 74 offers in that period. Our team ran 31 checkout tests across 31 offers in the 12 months to October 2026.
Choose the option that gives the lowest final total for your basket. Where terms do not state you can combine the newsletter credit with the sale, assume they are separate and take whichever produces the lower final price at checkout.