23-14, Minami-cho, Itabashi-ku Tokyo, Japan 173-0027
TEL: +81-3-3974-1731
FAX: +81-3-3974-1777

Contact information for purchase and inquiries
Osaka Shoji Co. Ltd.

Deoxidation chemical compound
Copper tube brazing

It's TOYO's New Magic


Spraying this CLEAN COPPER
into copper tubes prevents them
from oxidation and keeps clean surface.

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US Patent
Japanese Patent
Top shows oxidized scales formed inside the copper tube by brazing without using TOYO CLEAN COPPER. The scales give serious damage to the system.
Bottom shows the inside of the copper tube after brazing with the use of TOYO CLEAN COPPER. The copper surface keeps clean enough for longer life of the system.

Superior quality deoxidation spray for copper tube brazing

To prevent oxidation of the inside surface of copper tubes at the brazing time, CLEAN COPPER has following advantages over usually used N2 sealing method that fills whole tubing system with nitrogen-gas.
1, A can of TOYO CLEAN COPPER is very light (200 g) and easily handled. On the other hand, the nitrogen gas source is a very heavy cylinder to handle and takes time to replace air in piping with nitrogen gas.

2, Long life of system due to long lasting its effect

3, Shortening of the work time and lower cost than nitrogen sealing method.
Example of application
1, Refrigerant piping system for large size business buildings such as office buildings, shopping centers, supermarkets, etc. (both at the time of new construction and renovation of the system)

2, Air-conditioning/Refrigerating system in ocean vessels
Recommended method of application

Recommended method of application
1, Clean well inside of the joint to be brazed
2, Shake well TOYO CLEAN COPPER can before use
3, Seal one end of the copper tube, and then, spray TOYO CLEAN COPPER into the copper tube from another end.
4, Seal both ends of the tube before brazing
5, After brazing, leave the brazed tube as it stands for cooling down