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Meter Mix Dispensing Reduces Production Time and Cost
P
recisely applying today’s epoxy, silicone and urethane-based adhesives and sealants require
By David Upton, Director of Marketing, FRC-Fluid Research Corporation, Tustin, CA Key to the process — for con-
the proper meter mix and dispensing process. Material manufacturers are constantly selling their formulations based on the benefits that they pro- vide, and rely on their customers to properly identify and apply formula- tions, whether for potting/encapsula- tion or adhesion.
tract manufacturers and OEMs alike — is reducing labor and material costs, as well as waste. This is accom- plished by using a dispensing system that meets these criteria. It is impor- tant to replace the time-consuming manual-mixing procedures with equipment designed to precisely meter, mix and dispense materials. This provides manufacturers with an
accurate, time-saving, and ultimate- ly cost-saving dispensing method. The reasons for potting and
encapsulating are endless. Potting and encapsulation is frequently used to protect a proprietary technology by completely covering an assembly in black epoxy resin — making it impos- sible to reverse engineer without dam- aging the proprietary component. The potting operation is per-
formed by pouring a polymeric mate- rial into an electronic device, totally submersing and protecting the inter- nal parts. The outer shell of the device holds the potting compound in place until it hardens.
Two-Part Formulation A two-part formulation is used
to protect circuit boards and compo- nents from harsh conditions, such as moisture, high/low temperatures, and physical or electrical stress. Encapsulation requires a mold to hold the device that is to be pro-
We’ve forged the path …
for your product’s success.
N-2000 meters, mixes and applies potting mix.
tected. Then the polymeric material is injected to completely fill the mold. The device then takes on the shape of the mold after the compound hard- ens. Potting or encapsulating with a filler can modify dielectric strength, dissipate heat, allow the product to float in conjunction with waterproof- ing, and depending on the type of compound used, adds flexibility or rigidity to the product. Potting and encapsulating are two of the most
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Potting involves pouring a polymeric material into an electronic device, totally submersing and protecting its internal parts.
popular applications for FRC’s multi- component dispensing equipment. It is a common belief that everything in this world either contains a potted/ encapsulated part or was made from a machine that contains a potted/ encapsulated part. FRC Fluid Re - search Corporation has been at the forefront of this process for over 15 years, developing meter mix dispens- ing solutions to meet these often challenging requirements, specially designing systems to meet the needs of both customers and materials manufacturers.
Shot-Size Accuracy Critical aspects of a two-part
dispensing system are its shot-size accuracy and range, with a pre- dictable adjustable flow rate and con- sistent ratios, to create a very repeat- able process. When utilizing a preci-
Continued on next page
July, 2012
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