Liner-glazing is a very good way to assure that your ware has a durable and leach resistant surface. It also signals customers that you care about this.
A gas fired cup that I forgot to post. The glaze is Coleman copper
Buff Liner Glaze
Moss Green Cup With White Liner Glaze Cone 6 Electric Fired
Mayco - Glaze Brush - #2 Detail Liner – Krueger Pottery Supply
Morphe X Meredith Duxbury Lip Liner & Lip Glaze Duo - Lip Kit
Liner glazing
Stoked about how this glaze ran! : r/Pottery
Zero3 Porcelain
Liner glazes
Liner Glaze
BUY Cello Queen Liner Glaze Cup & Saucer Set, 6 Pcs – ZORROWMART
Pair of Rods Bod Wood Fired Cups with Emily Purple — Jill Spawn
Wood Fired Bottle #2, high fire stoneware, with natural ash and underglaze outside; liner glaze inside, 11x5” — minėmå gallery