Touch-Up bottle kits from CTW are a great way to touch up your coatings quickly with minimal product waste. Apply easily with the attached bristle brush and fill with the included funnel. Sold in quantities of 1.
20 ml are made for solvent-based paint. It includes a bristle and metal ball for shaking your product.
50 ml are made for both solvent and water-based coatings. They include a bristle brush as well.
You can also provide your customer with a bit of coating from the project, potentially avoiding the need for additional touch ups.