Microchannel HX Coating
BLYGOLD is the first choice in corrosion protection for HVAC equipment
The Micro Channel Heat Exchanger (MCHE) development originates from the automotive industry where it has been used since more than twenty years now. They have however only recently been introduced to the HVAC&R industry. Some of the big advantages are that they are lighter, more efficient and they lower the required refrigerant volume. Another advantage of an MCHE coil is that it’s made out of aluminium only. This makes it less vulnerable to galvanic corrosion (caused by combining dissimilar metals) than the traditional RTPF coils. The MCHE coils not only bring the above mentioned advantages , they also bring with them extra challenges. In corrosive environments, not only the fins will corrode but also the aluminum tubes are at risk.
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Blygold PoluAl MC: flexible coating & flexible application process
Blygold PoluAL MC is a flexible coating. Even after thermal cycle testing the coating is able to withstand fin bending without risk of cracking or delaminating. Another major advantage of this coating flexibility is that flat micro channel coils can be bent after the coating has been applied. Tests have shown that the coating is still in perfect condition on the bended areas.
PoluAl MC is applied through Blygold’s special spray techniques. This makes the application very flexible. It can be applied to any size of micro channel heat exchanger without any restriction. When coils are already bent they can also be treated with PoluAl MC.
HVAC corrosion protection
Blygold has developed pioneering new coatings specifically for HVAC corrosion protection. From the very beginning Blygold has always focused on corrosion protection for heat exchangers, which are vulnerable to severe corrosion because of their construction with dissimilar metals and pollution from air circulation.
The success of these protective corrosion products derives from the unique application method including a thin layer, high UV and chemical resistance properties. These reputable products are renowned in the air conditioning business worldwide. Blygold are proud of their extraordinary success stories and our honoured to have worked on ambitious projects like the cruise ship Queen Mary 2, Palm Island Jumeirah and London Heathrow Airport.
Preserves high efficiency of micro channel HX
Prevents early micro channel HX failure
Heat conductive protective layer
Improved water release properties
Highly flexible for coil bending
Reflective pigment prevents sun radiation absorption
11.000 hour salt spray test ASTM B117