North Star 18" Porta Roller Slab Roller Mason Total shrinkage at Cone 10:

Total shrinkage at Cone 10: 15

FiringThe tile displayed is the final fired result at cone 5

borax has been shown to improve the fit of glaze on greenware and bisque

Because of the back pressure generated by a large amount of clay being forced through a small orifice

Super Lightweight

North Star 18" Porta Roller Slab Roller Mason Total shrinkage at Cone 10:The PortaRoller was designed for ceramic arts teachers who are moving from classroom to classroom and for studio potters who need a fully functional slab roller but have limited space. The PortaRoller has two rollers, much like the wringer of an old fashioned washing machine. Both rolls have a small diamond pattern ("knurling") machined directly into the metal to grip the canvas. The bottom roll is turned by the handle, but cannot move vertically. As