Scaling powder
FD-309 Series
Rosin-free flux  

The products have passed the inspection and certification of authoritative organizations such as SGS, Saibao, CTI, etc., and conform to EU RoHS Directive and REACH Regulation


Halogen-free products conform to EN14582 test standards,and their corrosiveness and electrical safety can meet IPC J-STD standards.

FD-309 Series
J-STD-004 Sort
TV Products, etc.
TV Products, etc.

Environmental friendly lead-free halogen-free flux

Environmental friendly lead-free flux


FD-309 series flux is composed of organic acid activator, film-forming agent, surfactant and alcohol solvent.

It has low solid content, good solderability, full  and uniform solder joints, very low ion residue after welding and no need to be cleaned.

The above product specifications, parameters and testing standards are subject to change without  prior notice. Please refer to the product specifications  issued by our company.

Production and Sales Centers in Mainland China
Hong Kong Regional Sales Centre
Suzhou Costar Electronic Materials Co., Ltd.
Hong Kong Costar Industrial Co., Ltd.
Zhuhai Costar Electronic Materials Co., Ltd.