Letter 33854

Corrolube GFS2 for BMW bolts, zinc/nickel or zinc Iron or...?  

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Dears,

I have to coat bolts for BMW X5 wheels, on the drawing there are only these informations:

Surface: Corrolube GFS2
Resistance to Zinc corrosion 120h in DIN 50021 [link is to spec at TechStreet]-SS
Resistance to metal base 480h in DIN50021-SS

May you give me more information about this coating? Is it zinc-nickel with top coating or Zinc Iron? What's Corrolube GFS2???Who is the manufacturer for this product in Europe?

Thanks in advance for your cooperation.

Lievore Simone
- Padova, Italy

Hello Lievore

It is likely the spec calls for alloy plating to 120 Hrs white rust and 480 hours Red rust.

Several companies world wide are listed which make the kind of product specified in your drawing, and many of the listed products are direct equivalents.

You should go on line and check which equivalents are available to you.

I might suggest another product called Pavcoat TTF 810 M which is available from Pavco, USA which lasts 500 Hrs to Red rust. and reduces Torque Tension effects due to coefficient of friction in nuts and bolts.

Hope this helps.

Regards

Asif Nurie Atlanta Global Limited New Delhi, India

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