Name: Solvay NOCOLOK PRECOATING
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Solvay NOCOLOK PRECOATING

Pre-applied, uniform flux coating eliminates on-site flux handling and reduces operator exposure.
Optimized for vacuum brazing of aluminum heat exchangers with minimal residue and excellent joint integrity.
Consistent coating thickness ensures repeatable thermal performance and reliable capillary flow during brazing.
Compatible with standard aluminum alloys (e.g., 3003, 4045, 6061) and widely accepted in OEM automotive and HVAC manufacturing.
Non-hygroscopic formulation prevents moisture absorption during storage, enhancing shelf-life stability.

Typical Applications Of Solvay NOCOLOK PRECOATING

Automotive air conditioning condensers and evaporators.
Commercial refrigeration heat exchangers (e.g., chillers, dry coolers).
Power electronics liquid cold plates for EV inverters and battery thermal management systems.
Aerospace heat sinks and compact thermal control units requiring high-reliability aluminum brazing.
Industrial HVAC coil assemblies subjected to cyclic thermal stress and stringent leak-tightness requirements.

Chemical Type	Alkali metal fluoroaluminate-based brazing flux (NOCOLOK® chemistry)
Product Form	Pre-applied, cured thin-film coating on aluminum substrates
Appearance	Uniform matte grey to light tan film; non-tacky, dust-free surface
Primary Applications	Vacuum and controlled-atmosphere brazing of aluminum heat exchangers
Key Features	No post-coating drying required; compatible with roll-to-roll processing
Benefits	Reduces flux consumption by >90% vs. paste/spray methods; improves workplace safety and process repeatability
Storage Conditions	Room temperature (15–25°C), low humidity (<60% RH); stable for ≥12 months in sealed packaging
Compliance	RoHS 2015/863/EU compliant; REACH SVHC-free; no added PFAS or heavy metals

Get in Touch with ERICW

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E-mail: wangxingqiang@ericwchem.com
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15921782326
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China