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Ted Mooney, P.E. RET
Pine Beach, NJ
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for Metal Finishing since 1989
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Corrolube GFS2 for BMW bolts, zinc/nickel or zinc Iron or...?
Q. 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 120 hr in DIN 50021-SS
Resistance to metal base 480 hr 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.
- Padova, Italy
2005
A. 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 [deceased] [deceased]
- New Delhi, India
With deep sadness we acknowledge the passing of Asif on Jan 24, 2016
Q. I need to coat BMW lug bolts but only have the following information:
Surface: Corrolube GFS2
Resistance to Zinc corrosion 120 hr in DIN 50021-SS
Resistance to metal base 480 hr in DIN50021-SS
Does anyone have more information about this coating? I am assuming it is Zinc Iron with a top coat? What is Corrolube GFS2?
Is this product available in the U.S.?
Thanks in advance!
Nathan Bukoski
- Madison, Wisconsin United States
October 9, 2017
A. Hi Nathan. Every reference I can find on this resolves to a coating used on Swag Wheel Fasteners (Germany); I find nothing else. Consequently, until disabused of the notion, I have to guess that it's a Swag proprietary name for some finish they apply or have applied to their wheel fasteners.
If my guess is correct then, either you are doing this ultimately for Swag and they should be able to tell you what they want done, or you are doing it for a competitor of theirs who I must guess doesn't yet understand that Corrolube GFS2 is a Swag tradename?
Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. Hello Ted,
This is not a proprietary item of SWAG. I noticed the same thing when I did my research online. SWAG is only listing the different finishes their products offer, which they purchase from different manufacturers.
I have seen the corrolube name multiple times from different manufacturers for a black lug bolt. I am trying to duplicate this black finish.
My assumption is a Zinc Iron plate with a possible black topcoat. The corrolube looks to be only a sealer.
Here is a link to one that I see on amazon: amzn.to/2gINRPo
If there is a finish shop in the U.S. that has this ability, please contact me.
Nathan Bukoski [returning]
- Madison, Wisconsin USA
October 10, 2017
Ed. note: Sorry, this RFQ is old & outdated, so contact info is no longer available. However, if you feel that something technical should be said in reply, please post it; no public commercial suggestions please ( huh? why?)
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