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retarder |
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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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This new product matches the lower viscosity and improved mold flow of the fatty acids and zinc soaps, without negative retarder effects, as shown in the rheology charts. Quarter and half wave retarders are available in three standard wavelength ranges from 400nm to 1600nm. The data in table 1 shows that the triazine cure system without a retarder does not have enough shelf life to be usable in a normal production environment. |
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