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retarder

   Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.01 sec.
retarder [ri ′tärd·ər]
(materials)
A material that inhibits the action of another substance, such as flameproofing agents or substances added to cement to retard setting time. Also known as retardant.
(mechanical engineering)
A braking device used to control the speed of railroad cars moving along the classification tracks in a hump yard.
A strip inserted in a tube of a fire-tube boiler to increase agitation of the hot gases flowing therein.
retarder
1. In paint, varnish, or lacquer, a high-boiling solvent used to lower evaporation rate of the volatile ingredients.
2. An admixture which delays the setting of cement paste or the setting of mixtures such as mortar or concrete containing cement.
3. An additive, mixed with plaster to control the rate of hardening.
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Saret SR517R trimethacrylate and SR519R triacrylate coagent monomers incorporate a proprietary retarder technology for improved scorch safety in high temperature mixing and curing processes.
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The inspector will look at insulation and vapor retarders in unfinished spaces, and ventilation of attics and foundation areas.
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Without the need to modify their paints with an extensive array of retarders, mediums and additives, or to race to finish their work before the paint dries, artists are brought closer to their work, the company said.
Golen Artist Colors' new Open Acrylics by Coatings World
 
 
 
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