Primo Primer

Announcing a breakthrough in kiln shelf priming. Hotline Primo Primer™ fires to 1550°F and higher. Glass does not stick to molds, Primo Primer does not stick to the glass. It's perfect for coating intricate molds. It removes from shelf after firing by brushing or by wiping with a damp sponge.
Sold in 1.5- and 4.5-pound containers.

Hint from Carmen - I can use whatever I want for my shelves and my shelf preparation of choice is a combination of Primo Primer and Fuse Master Kiln Wash. Mix dry 4 parts Fuse Master with 1 part Primo. When you are ready to prep your shelves combine 1 part of the dry mix with 4 parts water. Apply 4 - 6 coats to your shelf. I think the result is better than anything out there including the expensive thin shelf papers.