Thanks to Speedster356 in Greece for the picture.

According to the MSDS sheet, its 100% Krytox

Dupont has just put out an interesting pdf that deals with Krytox as a long term solution for squeaks and rattles in automotive applications.
http://www2.dupont.com/Lubrica...1.pdf

There has been an update newsletter from DuPont dealing with the 100 series Krytox oils, specifically comparing the performance and durability of the auto industry standard GPL105 to thinner viscosity GPL104 and GPL103 versions.
http://www2.dupont.com/Lubrica...2.pdf

Volkswagen offers 3 versions of Krytox. The second part number is a 100ML aerosol spray version under part number G 052 172.A2 and after examining the MSDS sheets, it was possible to determine that there is no silicone present in the product, but of the 100ML volume, it is mostly propellants. You only get 5-7% Krytox by weight, but Krytox is very dense so you would end up with less than 5-7 ML if you calculated the content by volume. This part number appears to be a poor value.

Volkswagen also lists part number G 060 172.A3 which is a paste (grease) version in a tube. The DuPont Equivalent to this is GPL 205 and it is a 2 ounce/56.7 gram quantity. This version of Krytox is also well known by owners of Corvettes, as well as the Cadillac Allante with a removable hardtop. Krytox is the only product which can silence the squeaking problems in the weatherstrip as the chassis flexes against the removable hardtop in the Allante.

I purchased Krytox GPL 205 for $29 plus shipping from Darrel Kinkaid at THT Group Inc. His E-mail is dkinkaid@thtgroup.com or 650-595-1112, extension 1. Unfortunately the price has now gone up over 30% to $38 for the 2 ounce tube. Its frustrating to see such rapid price increases, and a good incentive to look to other vendors.

Here's another affordable alternative. You can get GM part number 3634770 for $32.49 at GM parts Direct. Its worth reading their product description. After reviewing the MSDS sheet from GM, I was able to determine that this is the liquid Krytox GPL 105 which is an exact match to the VW part number G 052 172 A1 in the Eos owners manual at 1/3 of the price. The quantity listed on the label is 29ML. It has been mentioned that the liquid may be more difficult to apply precisely, and may be prone to unintentional spreading over time. So you may prefer the thicker GPL-205 grease instead of this.
http://www.gmpartsdirect.com/

You can clearly see that the label lists the contents as "Oxirane" and the CAS registry number of 60164-51-4 (see top paragraph of this post for information on determining a chemical match). The liquid in the bottle is about the consistency of maple syrup. You can see it cost a little more at my GM dealer, and they had to order it anyway, so I just recommend ordering from the gmpartsdirect.com website.

There is a permeable applicator pad fixed to the top of the bottle to control flow which would remind you of a bingo marker. This pad and its white plastic mounting ring are easily removed from the translucent bottle for direct access to the liquid inside.

My contact at the GM dealer also got me the MSDS sheet which confirmed the GM 3634770 weatherstrip dressing is 100.0000% Krytox. Notice the CAS registry number I explained in the first paragraph.

To precisely apply the liquid Krytox GPL 105 oil, you might want to repackage into a squeeze bottle oil dispenser with a needle to reach into tight spots. There's many different styles available. When you are selecting a Luer needle, get the biggest possible. I recommend 14 gauge 1.5 inch length, 16 gauge is O.K., but don't go smaller (higher number i.e. 18, 20 gauge) than that.
http://jensenglobal.com/

Again here's the Krytox FAQ directly from DuPont to quickly make you aware of the chemical properties. Krytox is really an aerospace lubricant, use as a dressing/protectant is a secondary application.
http://www.dupont.com/lubricants/en/faqs.html

Here's an old interesting discussion from the Plymouth Prowler board in 2002 when some individual was selling GPL 205 for $20.70/2oz tube. The e-mail/group buy is no good anymore, but there is a highly in-depth technical discussion that's worth reading. Its a little alarming to me how quickly the price of Krytox has been increasing over such a short period of time.
http://www.prowleronline.com/u....html

If you read step 21 (scroll down) of this link, you can see a good idea of how to apply krytox paste to weatherstrip with a thin protective glove.
http://www.corvettemagazine.co...p.asp

Here's my tube of Krytox GPL205. Its working well on my non-Eos vehicles. Remember Krytox is primarily a lubricant so it can be used anywhere you would apply regular oils or greases. It is far superior to petroleum based lubricants in that it is very resistant to washoff from nautrally occuring solvents, and has a much slower evaporation rate, guards against corrosion better, is a better lubricant and is much cleaner. Your door and trunk hinges would be better protected with Krytox compared with, for example, white lithium grease.

Most auto manufacturers offer Krytox in some form or another to deal with squeaks and rattles. Here's an example from Saab, at least they don't try relabel it.

Modified by WolfsburgerMitFries at 5:57 PM 7-11-2007

I need to purchased something soon for the seals.

Maybe we are all a little paranoid?? My husband has driven a 2001 Corvette, with the removable top, for five years. He takes it to the local car wash and has never used any sealant on the weatherstripping. No Leaks, looks great !!

Are the EOS seals made of a different type of material?

To answer your question, the rubber seals have a coating applied to them in order to address a wind noise problem that delayed the release of the Eos by several months. So I would never try to aggressively scrub the seals or wash the car with any type of high pressure spray hose. Also, things like silicone tend to soften rubber and break down rubber (make it spongy) over a long time, and might cause this coating to de-laminate from the weatherstrip/seals. I believe the Eos owners manual specifically recommends against products containing silicone.

If anybody has an Eos owners manual and a good digital camera, It might not be a bad idea to post pictures of care/maintenance procedures and warnings about the top seals in this thread.

Modified by WolfsburgerMitFries at 10:43 AM 9-17-2006

I have just send the pictures to my dealer. When I got an answer I wil post it.

Modified by bjorngra at 11:21 AM 9-18-2006

Modified by bjorngra at 12:56 PM 9-18-2006

The strange thing is that it's not the whole seal thats get white.

I wil post the reaction of my dealer. The other Dutch member EVGUNST said:
The grainy texture can be solved by putting on a special VW-gel produced specially for the eos.

But I don't know if he tried it? And of it's working.

I fully appreciate a desire to maintain the Eos exactly per the manufacturers instructions (and recommend that approach)...there's nothing funnier than some of the posts you read where somebody thinks they know more than the auto manufacturer, but I'll explain the motivation behind my research which eventually became the top post in this thread.

My objective was to find out exactly what Volkswagen was selling for $95 as weatherstrip dressing, and find a less expensive source for the exact same substance, and that's what I've done. You can pay $95 for Krytox in a Volkswagen labeled container at the Volkswagen dealer, or you can pay $29 for Krytox in a DuPont labeled container from a 3rd party vendor...either way its the same stuff.

If you read the Krytox FAQ on the DuPont website (see top post), DuPont goes on at great lengths to explain how Krytox is chemically inert, non-reactive, and does not oxidize or break down. That would indicate there is no solvent characteristic to Krytox, so it would not attack the weatherstrip or the coating. Remember the principal application of Krytox is a lubricant. If you read the section about compatibility with seals it reads exactly....

"Is Krytox® compatible with various seal materials?
Krytox® is compatible with all seal materials. It is chemically inert."

Here's a translated discussion from a German board dealing with the new Beetle Cabriolet over a year ago. Apparently Krytox is also recommended by Volkswagen in that application as well. The discussion was about obtaining Krytox outside of Volkswagen. Apparently the Germans weren't interested in Volkswagens grotesquely overinflated price either. This was my source for the 3 different Volkswagen part numbers.

http://translate.google.com/tr...lr%3D

Modified by WolfsburgerMitFries at 5:36 PM 9-23-2006

Did somebody already used Krytox, and did it work to remove the white spots on the Eos?

The liquid is silghtly easier to spread compared to the paste GPL-205 but they both will work just fine. It has been mentioned that the liquid may be more prone to unintentional spreading/leaching out compared to the paste GPL-205.

I knew the counterman at the GM dealer and paid a discounted price of $34.36 plus tax, but it is still cheaper at gmpartsdirect.com

Modified by WolfsburgerMitFries at 11:37 AM 10-12-2006

Bottom line, use whatever its best for you. For me I continue to use GPL 205 with a little paint brush

I brought it on today. It's very simple. Just spray all the rubber seals. I half opend the roof
to spray the sides of the seals that are not visible from the outside.

De white spots are gone. I'l hope for a long time. The lubricant spray is almost empty. 100ml
I ask or I can get another one 'for free?".

The idea it may be caused by wax, or other protectant, sounds plausible. The white spots do look a bit like wax residue in the photo.

Have the cars with the spotting problem been through an automatic car wash that has a wax or clearcoat protectant cycle??

If wax is the culprit, the krytox grease may prevent the wax from adhering, and solve the problem. hmmm??

It is a good idea to to still keep an eye out for alternative sources for Krytox, we may stumble on a cheaper source yet. I'm sure both BMW and Volvo have Krytox in some form, because they both offer convertibles, and now they both have RHT convertibles. I'll see what I can learn next time I'm at the BMW dealer...who also happens to be the VW dealer.

(minor edit - Michael)

Modified by PanEuropean at 4:19 PM 11-14-2006

Krytox is an inert liquid lubricant composed of flourine, carbon and oxygen.

According to Dupont, "Krytox lubricants for seals and gasket material do not cause cracking or swelling and are compatible with all plastic and synthetic rubber."

To create Krytox grease Dupont adds PTFE (a form of Teflon) to thicken the product. As far as I can tell the specific product used is Zylon PTFE.

PTFE is composed of flourine and carbon. Making it a very similar product to Krytox.

I could not find anywhere on Dupont's site where it confirms PTFE compatibility with plastic and synthetic rubber.

With being such a similar product, one would assume it would be compatible.

Only bringing this up because the VW OEM product is the liquid Krytox, which would be 100% Krytox, without the added PTFE.

The thicker the grease, the higher the PTFE content.

Not suggesting anyone change from the grease product if they are happy with it, but wanted to put the info out there to assist in the decision making process.

It's possible VW markets the liquid form due to the absence of PTFE??

GPL 205 prices are as follows:

2 ounce tube: $29.00 each
8 ounce tube: $88.40 each
0.8Kg Cartridge: $244.25 Each
Various containers per Kilogram: $290.00 each

I purchased the 8 oz tube and white spots are gone.

I have applied the krytox on as many seals as I have found, so I am curious about 2 things.

1) How often are people putting krytox on their seals?
2) I'm thinking of just taking this into the dealer when I take it in to replace the MFD and tell them about it. Perhaps they will use the rattle kit that has been spoken about on a different thread, or??

Any suggestions or comments would be helpful

Tim:

That's an understatement if there ever was one. That 'first snowstorm' you referred to was such a doozer that it even made CNN news here in Europe - see this link: Storm causes death, trouble across mid-U.S..

The clanking noise you heard was probably the roof collapsing from the weight of all the snow on it. Be sure to melt all the snow and perhaps wait a few days before you take it in to the dealership to get a new roof installed, to ensure that VW doesn't put 2 and 2 together...

Michael

I need some help with the seals and krytox. I am curious how often people are putting krytox on their seals? Also, how much do you put on your seals? Just a little tiny bit, or????

I have also gotten some on my paint My own fault and am curious what people recommend to get it off your painted surfaces?

My problem seems to be that if I don't put the krytox after almost EVERY carwash, then I end up hearing all kinds of rattles etc.. coming from the roof and trunk area. Very annoying

So any and all help would be appreciated. Perhaps I should just let the dealer wash the car and let them apply the krytox after washing?

Krytox does not evaporate quickly like petroleum based oils and greases can, nor does it wash off easily. I would think 2 applications a year would be more than enough, even for daily drivers in harsh environments.

On my cars, the GPL-205 paste I've applied stays on the weatherstrip so long, that the only problem I've had is occasionally forgetting about it and ending up with a handful of Krytox when I rest my hand on the weatherstrip inadvertantly. I have not used the GPL105 oil as a weatherstrip dressing, but I have used it for door hinge and throttle cable lubricant, and I also used it in my brake caliper slide pins to replace sil-glyde that I had been using before, its only been 1 week since I repaired my brakes, so I won't be able to check durability for a while, but the brakes do seem to grab a little faster now...but that might be new parts too, we'll see.

As far as getting it off paint, my real world experience is that its a non-issue. It just wipes off with an old cotton cloth. Krytox is inert and has no solvent sharacteristic, so it won't damage paint either.

Modified by WolfsburgerMitFries at 12:35 AM 12-4-2006