Any dry product such as pearls or flakes may be mixed with other brands of paint. Mixing wet products with HOK is a bad idea. House of Kolor products are formulated to work within the House of Kolor system where as other products are formulated differently to work in their own systems. When you mix products from other systems you risk conflicts in formulation which could spell disaster for your custom job. If you’re going to spend all the time and money it takes to do a custom paint job, you shouldn’t risk the quality of the job by mixing products. You shouldn’t even use another clear over a House of Kolor paint job. HOK clears are formulated to protect your custom finish with two to three times more UV protection than other automotive clears. HOK products are designed for long lasting custom paint jobs where other brands are designed for OEM repairs. Don’t risk mixing products!