Elpeguard SL 1307 FLZ series conformal coatings are 1-pack fast-drying polyacrylic resins for yellowing resistance. Cured ink film can be soldered through at soldering iron temperature; can be removed by means of the product-specific thinner. The colorless fluorescent adjustments are approved as permanent coatings per UL 94; meet requirements of IPC-CC-830B.
 
The Twin-cure DSL 1600 E-FLZ series has low viscosity thick-film lacquers. Offers corrosion protection. Meets requirements of UL 94 and IPC-CC-830B. Has short processing times. Thin protective coats of around 80 µm can be realized.
 
The yellowing-stable white-opaque photoimageable solder resist Elpemer SD 2491 SM-TSW and corresponding marking ink Elpemer SD 2691 TSW are applied by screen printing and developed in aqueous-alkaline media. The latter corresponds to the flame class V-0 according to UL 94, meets requirements of IPC-SM-840D and is halogen-free per JPCA-ES01-2003/IEC 61249-2-21.
 
Wepuran casting compound VU 4490/31 K is based on polyurethane resin and is yellowing-resistant. The smooth white surface gives a high-grade finish. Is said to be easy to process in mixing and dispensing equipment; can be processed by hand despite short pot life. Is said to be fast curing. After slight heating to 40°C, the potting can be removed from its mould after 10 min.
 
Lackwerke Peters, www.peters.de

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