PAINT & POWDER
Private research institute Rescoll in France offers tests with Dürr ' s EcoPaintJet
Overspray-free painting in the test laboratory
Big things start small : since late summer 2021 , end customers have been able to test paints , substrates and the corresponding application for a low cost at the French research company Rescoll for compatibility with Dürr ' s EcoPaintJet in order to prepare optimally for series production . Dürr ' s overspray-free painting process has been on the market since 2019 and is already being used in the automotive industry . The tests offered should make it possible to use the EcoPaintJet in other industries as well .
Rescoll is a private company offering technological services at three sites in France – Pessac , Bayonne and Rochefort . With more than 7000 m ² of laboratory space , the research company is able to conduct testing and industrial research on polymer materials applications in numerous industries . These include medical device , energy , transportation and construction . Rescoll works for its customers from the early stages of product definition and polymer formulation , but also in the context of regulatory qualification and material analysis through physicochemical analysis , mechanical testing , aging or fire tests , and for the validation of resistance under harsh environmental conditions .
Multi-stage test setup
Originally founded for the aerospace industry , the private research institute Rescoll , has increasingly opened up to other industries . In addition to the EcoBell2 equippped ready2spray robot , which has already been in use , Dürr ' s EcoPaintJet is now being added to the test portfolio at then Pessac laboratories . The test process takes place in several stages : First , the customer sends the relevant paint or substrate to Rescoll , where it is checked whether the material is suitable for carrying out the test at all , which is then performed . Once the test has been successfully completed , the results are sent to the manufacturer , who is then able to adjust the paints and substrates to ultimately adapt Dürr ' s technology . Dürr already refers to the possibility of testing inks as well as the substrates first at Rescoll in use with the EcoPaintJet in consultation meetings with its customers . If the results are satisfactory to the customer , a suitable integrator is then found in the integrator network who will bring the Dürr equipment to the customer ' s premises ready for operation .
Best practice from the automotive industry
As early as 2019 , Dürr ' s overspray-free technology called EcoPaintJet was introduced in the automotive industry , where it is already being used in series production . The process is characterized by its high efficiency , as masking is completely eliminated . This is ensured by a completely new type of applicator that applies the paint with absolutely sharp separation . This means that the coating lands exactly on the intended surfaces , but not off them - even in very small quantities . What has already proven itself in the automotive industry is now to be used in other industries as well . All applications in which paint is applied in lanes are possible .
No more overspray
The EcoPaintJet achieves its high precision because the applicator works completely without overspray . This describes the paint mist consisting of tiny droplets that is produced by other atomizers and ends up outside the target area . In the case of the EcoPaintJet , a filigree nozzle plate measuring just a few square centimeters prevents overspray from occurring . The nozzle plate forms the underside of the rectangular applicator and is provided with around 50 barely visible holes , which have a diameter of around 1 tenth of a millimeter . The paint is applied in parallel jets from a distance of 30 millimeters through them .
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Figure 1 : Dürr ’ s EcoPaintJet complements the test equipment at the private research institute Rescoll in France .
Figure 2 : The EcoPaintJet is an innovative system for automated , overspray-free paint application .
50 APRIL 2022 twitter : @ surfaceworldmag