1. USING DIRECT SUNLIGHT This process is simple and straightforward. You apply the product and you place your shoes outside. Unfortunately, this method can cause sole separation, even midsole separation. As a result, it's important to monitor shoes in small 30 minute sessions to ensure you're not experiencing separation.
We recommend that you try covering other parts of the shoes with a cloth that aren't affected. Doing this will help modulate temperatures and prevent any yellowing or separation on other parts of the shoe.
2. USING INDIRECT SUNLIGHT INSIDE HOUSE You can place your shoes near a window exposing the affected areas to sunlight. This method is great because you're able to work in a cooler environment while exposing the affected areas in direct sunlight. The only downside is that it is difficult to get all areas exposed to sunlight, so you may have to rotate the shoes to restore both sides.
3. USE INDOOR LIGHTS This is for more advance restorers. Using indoor lights can be expensive to set up, but you have TOTAL control of the environment. This will let you work on the shoes longer and control results.
One downside to the indoor technique is that it will take longer to see results. This method is for those who are patient and want to avoid SOLE SEPARATION.
You can build your own setup by purchasing clamp light fixtures at a hardware store and buying UV- B bulbs.