I've never tried a water-based poly until today, and I have run into a problem. Admittedly, I am experimenting a bit. The problem is a crackled finish. Here are the details of what I did.
I volumteered to refinish my parent's kitchen table as payback for my Dad helping me deliver finished projects to customers. I started out by sanding the entire table top down to bare wood. I finish sanded it up to 220. I applied a coat of shellac as a seal coat. That dried over night. Next day I applied a water-based glaze tinted with Transtint dyes. That dried over night. I was only doing the top, so I was trying to get to the color of the rest of the table and chairs. I felt that I needed to warm up the tone a bit, so I tinted the water-based poly with Transtint dyes, and sprayed a coat. It sprayed great despite being a brushing product. As it dried I began to notice some issues. Slowly it began to crackle. It looks kind of cool, but this is not what I was going for. Any clue why this happened?
Other contributing factors may have been: Temperature in the shop (it was very cool in the early day, but I had the heat on for hours before I started). Heating with kerosene. Could that have contaminated the surface? Anyone experienced this?