I ordered some SolarEZ from Amazon. I saw the one pictured above at $15 + $3 shipping for 1/2 oz. - so I bought the one listed below. I am hoping it is the same or similar.
It was $18 with free shipping for 4 oz. . I will report back on how it works (or not).

Solarez-Low-VOC-Clear-Polyester-Resin