Source: Henkel
Loctite Stycast UV 7998 is the latest formulation in the company’s line of conformal coatings. Uniting sustainability, UL 94 V-0 certification and cost efficiency, the new material is designed for electronics protection at a competitive price-performance ratio. The material is well-suited for many applications, including home appliances, lighting, consumer electronics and automotive. Conformal coatings are thin polymeric materials applied to printed circuitboards (PCBs) and components and are ubiquitous for electronics applications that require a shield against moisture, dust, chemicals, and other environmental conditions that may limit performance and reduce product lifespan. Loctite Stycast 7998 provides this vital protection while lowering costs and enhancing safety, health, and the environment with its solvent-free composition. The material is easily applied, offering self-leveling across the PCB assembly, excellent wetting, and uniform coverage with no voiding. Once coated, curing takes place in seconds with energy-efficient UV light followed by a secondary moisture cure, after which the PCB is shielded from harsh environmental conditions and contaminants. Importantly, Loctite Stycast UV 7998’s strong attention to sustainability can enable electronics manufacturers to reduce CO2 emissions by up to 40% (versus solvent-containing formulas), prioritize operator health and realize significant cost improvements. Compared to solvent-based conformal coatings, the VOC-free, solvent-free Loctite Stycast UV 7998 requires as much as four times less sprayed volume to achieve a similar thickness. In addition to eliminating environmental volatiles, the material is tin-free, halogen-free, BPA-free, and RoHS- and REACH-compliant. — Henkel AG & Co. KGaA, Düsseldorf, Germany