hardwall

Floating wire hardwall, softwall, and corrugated hardwall constructions are available in a variety of cover materials, such as neoprene, natural rubber, butyl, which the manufacturer reports meet practically every application requirement in the bulk materials handling field.

1966, Pit & Quarry, page 74

Although television stations and non-broadcast production houses use hardwall scenery almost exclusively, softwall scenery is more practical for high-school and college television operations.

2003, Herbert Zettl, Television Production Handbook, 8th edition, Thomson/Wadsworth, →ISBN, page 370

Keen's cement finish bonds best to a base of strongly gauged Keen's cement mortar, but the addition of lime putty increases its bonding qualities when applied over a hardwall, lime mortar, or Portland cement base coat.

1923, Trade and Industrial Series - Issues 1-7, page 43

Hardwall-grade calcined gypsum ( +90 percent Casoy ) passes over a vibrating scrcen fitted with a 50-mesh screen;

1950, Information Circular - Issues 7555-7568, page 15

When EPA promulgated its final AHERA regulations on October 30, 1987, the regulations did not mention sheetrock, drywall, gypsum wallboard or hardwall plaster as ACM.

1992, United States Congress House Committee on Government Operations: Environment, Energy, and Natural Resources Subcommittee, EPA's Administration of the Asbestos in Schools Program, page 157