Printer Friendly

UV-Cured sealer stops SMC paint pops. (Keeping up with Composites).

A new way to minimize "popping" defects on painted surfaces of large SMC auto body panels has been devised by Meridian Automotive Systems in Kansas City, Kan., with the help of two partners. Meridian uses a new uv-curable, two-component polyurethane sealant from BASF Coatings, Southfield, Mich., and high-intensity uv-curing equipment from Fusion UV Systems, Inc., Gaithersburg, Md. The first commercial use is fender panels for current Ford pickup trucks, although numerous other applications are on the horizon.

The new approach is said to be "an order of magnitude" more effective than in-mold coating in preventing paint pops, and it eliminates about 30 sec of molding cycle time needed for IMC. BASF's Dynaseal liquid coating is sprayed on parts after molding and then quickly cured with a 20-lamp configuration of Fusion UV's microwave-powered F600 equipment. A second, low-temperature heat-curing step is also required to cure a few "shadow areas" remaining after uv curing. Surface quality of parts is said to exceed that obtained with inmold coating.

Meridian began using the new approach in mid-2001 for pickup truck fenders, but it has since expanded its uv-curing line in Kansas City to include a wider range of part sizes and shapes. The line has experienced zero downtime in a year of operation. The partners are convinced that the new approach has broad applicability in other automotive panels and in large parts for agricultural and recreational vehicles and heavy trucks. BASF (248) 304-5702, www.basf.com/usa; Fusion UV (888) 276-8600, www.fusionuv.com
COPYRIGHT 2002 Gardner Publications, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2002, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

Article Details
Printer friendly Cite/link Email Feedback
Comment:UV-Cured sealer stops SMC paint pops. (Keeping up with Composites).(Brief Article)
Publication:Plastics Technology
Article Type:Brief Article
Geographic Code:1USA
Date:May 1, 2002
Words:250
Previous Article:Thermoformed bumper fascia looks like a cost-saver. (Keeping up with Thermoforming).
Next Article:Mobile Foam-Spray Rig comes in a trailer. (Keeping up with RIM/Urethanes).
Topics:


Related Articles
Thermosets in the '90s: plenty of them yet.
Recycling will be a new theme at SPI composites expo.
In-mold coatings advance on many fronts.
SMC resin is 'grown' from corn & soy. (Composites).
Material, machine & process innovations give birth to SRIM truck box. (SRIM).
Better paintability and weatherability for SMC. (Keeping up with Composites).
Pieces on plastics: here are some things that you should know regarding useful development in the plastics arena. (Materials).
Faster autoclave molding. (Composites).
Composite coverup: the latest product from Quadrant Plastic Composites currently smoothes out the airflow under BMW's 5 Series. Plans are underway,...
The natural choice: mixing natural fibers like hemp and kenaf with thermoplastics put FlexForm on the map--and in the door panels of Chrysler's...

Terms of use | Privacy policy | Copyright © 2021 Farlex, Inc. | Feedback | For webmasters