Water Soluble Paper, White, 15 1 2 in x 165 ft x 0.0035 in ORS NASCO 300 rpm Stock Status In 300 rpm Stock Status In Stock Style SGP Z Curve Thickness [Nom] 5 8 in Type Radial (Type PFR) Welding Catalog NO [Nom] 4 1 2 in Grit 24 Hazmat NO Jan San Catalog NO Prop 65 NO Quantity 20 per pack Quarterly Flier NO Special Order NO Speed [Max] 13580 RPM Stock Status In Stock Thickness [Nom] 1 8 in Tool Shape Type 27 Type Depressed Center Wheels Welding Catalog NO Wt Provides a convenient and cost effective method for creating purge chambers for pipe welding Low air permeable purge gas barrier for TIG welding Excellent barrier for retaining noble gas (argon and argon helium mix) Simple and fast construction Dissolves effortlessly and rapidly during water or steam hydro test leaving no residue in pipeline