Elpemer SD 2491 SM-TSW solder resist is for application by means of screen printing. Has high resolution of fine details of 75 µm. Is aqueous-alkaline developable. Has good resistance to galvanic and electroless nickel/gold (ENiG), palladium, silver baths and OSP processes. Enables mass soldering and selective soldering simultaneously. Dielectric strength is 70 kV/mm; has a surface resistance of 2 x 10¹⁴ Ohm and a volume resistivity of 10¹⁶ Ohm x cm.

Lackwerke Peters, www.peters.de