I have a toaster oven in my shop area. I tried these steps in the evening:
- Spray and let dry to the touch (20 minutes)
- 10 minutes in the toaster oven at 50C.
- In the warm house overnight
- 10 more minutes in the toaster oven
- Cool to house temperature
- Engrave the tile
The results were splotchy, indicating it cured in some areas and not others. So overnight with heat is not enough. I’m sure heat helps, and there is probably some minimal recipe. Each tile takes 80 minutes to engrave, and I have limited time to hang in the shop, so it can be a slow process figuring some of this stuff out.