| ECONOMY | COSTS TO INSTALL a UV-cured powder line to coat MDF could run $1 million or more. |
| OBSERVATION'S | Co. is also working on extending use of UV-cured powders. The company's lamps, developed in consultation with radiation-cured coatings formulators, emit both longer UV wavelengths to cure through the film and shorter UV wavelengths to cure the film at the surface |
| PROPERTIES |
UV-cured powders offer advantages to metal coaters, too. "As metal heats up, 'outgases' have to pass through the powder, producing pinholes in the paint," she says. UV-cured powders don't require as much heat, so outgassing is not a problem. |
| UPDATE | 11.01 |
| USES |
manufacture dry eraser boards, preprimed composition moldings, and mirror backings. Also under development are clear UV-cured powders to finish temperature-sensitive substrates such as plastics and hardwoods. it is now possible to melt some UV-cured powders at temperatures as low as 175 °F because of improved resins from suppliers like UCB and DSM. She says fine furniture makers are looking into the possibility of using one pass of UV-cured powder over hardwood before sanding to a smooth finish instead of the current practice of alternately coating with lacquer and sanding three times. |
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