Peters, a global leader in the field of electronics-related high-tech coatings for automotive electronics, aerospace engineering, and LED applications, will be attending productronica 2017 and displaying the solder resist Elpemer 2467 series and the Elpeguard SL 1307 FLZ/4 conformal coating.
Suitable for direct imaging and high temperature applications
By now, the direct imaging technology has become state-of-the art in the pcb sector, even in small and medium-sized companies. The inconvenience of long process times that are still needed by some machine technologies can be compensated by choosing a solder resist with a high photo-reactivity. Applied by screen printing, curtain coating or spray coating, the products of the series Elpemer 2467 stand for practice-proven alkaline-developable solder resists which combine excellent direct imaging properties with high temperature resistance.
In direct imaging, these products require no more than 60 mJ/cm2, or even less, of exposure energy; they are already used for series production on common DI units. Despite their reactivity, they offer a wide processing window. They also fulfill the requirement of a temperature cycling resistance of 1,000 cycles at –40 °C / +160 °C and a continuous temperature resistance of 1,000 hours at 160 °C. They are also able to withstand 175 °C, if needed. At productronica, there will be thermal transfer pastes shown that are specifically for thermal management of printed circuit boards, i.e. heat dissipation and thermo-mechanical decoupling.
Outstanding adhesion to the substrate
The conformal coatings of the series Elpeguard SL 1307 FLZ/4 display a good adhesion even on critical base materials. Achieved through a chemical reaction with the substrate, not only does this feature give excellent cross cut results and quickly dries at room temperature, but it also doesn’t affect the reparability and/or removal of the dedicated thinner.
The colorless and yellowing-resistant conformal coatings based on poly-acrylic resins fully comply with the requirements specified by IPC-CC-830B and MIL-I-46058C. They have been tested as class II coating “for a high reliability“ according to IEC 61086 and are listed as both UL Permanent Coating according to UL 94 and as Conformal Coating according to UL 746E.
productronica, Booth A2.317; B3.348