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LiquiGuard SF ® is an unprecedented chemical coating developed to protect electronic devices and printed circuit assemblies from damage when exposed to moisture, water, beverages, non-corrosive liquids and even mild solvents. More than a moisture repellant, Liquiguard SF © is the only coating that will continue to protect the electronic device in case the device accidentally becomes fully immersed in water or other non-corrosive liquid. The device will remain protected while staying immersed for up to several hours. If the exposure is to unclean water, beverage, etc., the device can be rinsed with clean water without fear of harm. Long term stability of the fully cured film is excellent with a temperature tolerance range between 14°F to 275°F. Liquiguard SF's strong adhesion to the substrates enhances shock resistance, stabilizes loose components and encapsulates loose debris from post production processes that can damage the circuit.
Formulated from a blend of complex and innovative new resins, Liquiguard SF is a water based, odorless, and non-polluting coating unlike any other available in the market today. The unique protection of Liquiguard SF is made possible by the use of new and cutting edge polymers and innovative formulations. A coating thickness of 1.5 to 2.0 mil will provide optimal protection. This attribute also facilitates service and repairs eliminating the need to strip the coating prior to soldering. Liquiguard SF can be applied by spraying, brushing or dipping using conventional equipment. The coating becomes tack free in less than 15 minutes at ambient temperature of about 77°F. Full curing for optimal protection requires 48 to 72 hours. Cured LiquiGuard SF ® forms a glass like, tenacious and scratch resistant film over the circuit board and components. LiquiGuard SF ® flows easily and permeates thoroughly to cover components and leads.
Fully cured Liquiguard SF film is highly durable and will stay in place and continue to provide optimal protection until physically removed. Liquiguard SF contains a special "tracer dye" that glows when exposed to ultraviolet light. Missing or inadequate amount of coating can be easily detected by the absence of the telltale glow when the circuit board is exposed to a UV source. If too little Liquiguard SF has been applied, simply apply additional coating(s) to correct the problem. The coating is also designed to resist the occurrence and growth of mold, mildew and other fungi. |