rigid

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rigid

See rigidity.

rigid

(rĭ′jĭd) [L. rigidus]
Stiff, hard, unyielding.
References in periodicals archive ?
Epolene waxes, low-molecular-weight polyolefins and glycerol monostearates, are offered as extrusion lubricants for rigid PVC.
Applications are in PVC, rigid molded pipe fittings, extruded PVC siding, window and door frames, and high-speed wire and cable extrusion.
New products are Hostalub 4401, a multicomponent, ester-based lubricant system for bottle, profile and siding applications, and Hostalub XL 950, a synthetic-based lubricant system for wire and cable, and other flexible and rigid PVC applications.
RIGID SYSTEMS LLC is a leading provider of business-to-business systems integration solutions for customer care services, and IT operations management.
RIGID Systems' IT Operations involve the management of the basic IT structure in most companies, particularly in areas such as network/LAN management, database management, helpdesk management, and email management.
For more information on RIGID Systems visit the company's Website at http://www.
New rigid composite integral-skin foam produced without CFCs or HFCs is the topic of a paper from EniChem.
Problems associated with earlier water-blown rigid foams have included higher thermal conductivity, higher foaming pressure, lower dimensional stability, and poor adhesion because of surface friability.
Formulating rigid foam with HCFCs 123 and 141b as the sole blowing agent usually results in products with larger cell sizes and lower insulation values than achieved with CFCs.
Late last year, Air Products commercialized four silicone surfactants for rigid urethane foams blown with HCFC and HCFC/water systems.
Offers a complete line of release agents for polyurethane molding, including conventional solvent-based and water-based agents for flexible, semi-rigid, rigid integral skin, pour-in-place, microcellular, and RIM foams.
For Rigid PVC - Calcium Stearate FP, Calcium Stearate F, Calcium Stearate-Extra Dense, Magnesium Stearate D, and Sodium Stearate T-1 are internal lubricants; Sunolite 160 is a refind petroleum wax used as an external lubricant.