Oil Primed Portrait Linen is Mounted to Art Boards™ Drawing and Painting Artist Panels with an Archival Reversible Adhesives.

Art Boards Primed Linen Painting Panels are mounted to an un-tempered Natural Fiber Painting Panel.

Oil Painting Panels Canvas & Primers – Which are Best?

Centurion (OP DLX) Deluxe Professional Oil Primed Linen Stretched Canvas

Oil Primed Linen Panel 1/8 Hardboard

Trekell Acrylic Primed Linen Panels - Premium Quality – Trekell Art Supplies

An artist friend gave me a beautiful acrylic painting on thick paper instead of canvas. What are the best ways to mount such a work that can't be stretched? - Quora

Masters Archival Art Surfaces

Art Boards™ Natural Fiber Canvas Panel is mounted with Oil Primed Claessens Belgium Linen.

Linen Canvas, Medium, Oil-Primed

What artists, critics & collectors say about frames: Part 3