Good lubricant for assembly [Archive]

May 28th 18, 08:01 AM

On Saturday, May 26, 2018 at 6:34:36 AM UTC-7, Senna Van den Bosch wrote:
> I'm trying to find a good lubricant for assembly, available in Europe. Any ideas? Currently using regular vaseline.

If the manufacturer specifies a lubricant, use it. If the manual just says something like "Use a non-cold coagulating grease" Aeroshell 33 is good stuff. Hell to get off of your clothes though.

Papa3[_2_]

May 28th 18, 04:41 PM

This request comes up periodically; you could search old threads for the long and very passionate responses :-)

I like Superlube, which is a synthetic grease that is very temperature stable over the range that we tend to fly sailplanes. Great for main pins and other fittings. There's also a spray lube from the same manufacturer for those drives and other fittings that call for it.

Quick check on Amazon DE shows it's available there.

P3

MNLou

May 28th 18, 08:03 PM

> I like Superlube, which is a synthetic grease that is very temperature stable over the range that we tend to fly sailplanes. Great for main pins and other fittings.
>
> P3

What Papa3 said.

Lou

bumper[_4_]

May 28th 18, 10:12 PM

What Lou said. :c)

[email protected]

May 28th 18, 10:18 PM

What Bumper said.

Great stuff

[email protected]

May 29th 18, 02:28 AM

Use Vaseline on your girlfriend if you can't find better stuff in an emergency situation.

For important things like your glider, Super Lube is better, although I also like Exxon/Mobil synthetic grease.

https://www.amazon.com/Super-Lube-21030-Synthetic-Grease/dp/B07C7Y4GT8/ref=sr_1_1?ie=UTF8&qid=1527557147&sr=8-1&keywords=synthetic+grease+super+lube

https://www.amazon.com/Mobil-105527-1-Synthetic-Grease/dp/B000LDJ3XQ

[email protected]

May 29th 18, 02:51 AM

Postscript: I don't recommend petroleum based lubricants because of the potential problem if they permeate into the composite structure. There is a reason composite layups are done while wearing latex or nitrile gloves (as well as handling Fiberglass, Kevlar or Carbon Fiber cloth). Sure, they keep the goo off your hands, but they also prevent skin oils from contaminating the fibers and epoxy.

I am sure some folks will disagree, but the FRP engineers I know all wear gloves, never handle cloth with bare hands and don't use petroleum based lubricants on any composite structures.

[email protected]

May 29th 18, 03:24 AM

The reason they wear gloves is the issue is before the epoxy cures, there are no issues once curing has taken place.
I know several expert sailplane repairers who use normal greases, and have never heard of any problems from the repair guys.

Alex[_6_]

May 29th 18, 10:38 AM

I ordered SuperLube through Amazon in Germany. Shipping took a roughly 3 weeks but I think it was worth the wait.

krasw

May 29th 18, 08:03 PM

On Saturday, 26 May 2018 16:34:36 UTC+3, Senna Van den Bosch wrote:
> I'm trying to find a good lubricant for assembly, available in Europe. Any ideas? Currently using regular vaseline.

I have never heard anyone having problem with regular vaseline. You need basically something to keep water of the bare metal surfaces. There is no high-friction or high-temp environment in glider use.

Charlie M. (UH & 002 owner/pilot)

May 29th 18, 09:03 PM

Agreed.
Vaseline is better than dry or old lube.
Cheap and easy to get.
Easy to use.

If assembling for a season, maybe something better.
Keep in mind, very limited movement so lube quality is less of an issue.
Yes, some may say the "wings will fall off" if you use the wrong lube. In this case, not likely.

jfitch

May 29th 18, 10:39 PM

On Tuesday, May 29, 2018 at 1:03:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
> Agreed.
> Vaseline is better than dry or old lube.
> Cheap and easy to get.
> Easy to use.
>
> If assembling for a season, maybe something better.
> Keep in mind, very limited movement so lube quality is less of an issue.
> Yes, some may say the "wings will fall off" if you use the wrong lube. In this case, not likely.

I can't agree with the "anything" specification. The main pins do not move, but the lift and drag pins clearly do work in flight, with considerable pressure on them. Any glider a few years old will show signs of wear, galling, or Brinelling on those pins. From this is seems to me that something with some extreme pressure ingredients is desirable.

Charlie M. (UH & 002 owner/pilot)

May 30th 18, 12:56 AM

Oh, I don't disagree, trust me with my mechanical background.
Dry is among the worst case, crappy lube is better than nothing.

While we strive to be in the "perfect world", Vaseline is way better than nothing.

Not everyone wants to spend "x" dollars on lube, just like some peeps try to do a season with one set of wing tapes to the fuselage.

I am not here to judge, just saying Vaseline is way better than nothing.

I have been chastised when pulling wing tape and balling it up.
I just "wasted" a seasons worth of tape....shame on me......
Thus I use Scotch type 33 white electrical tape. Not a killer on price and easy to get.

Craig Funston[_3_]

May 30th 18, 01:07 AM

On Tuesday, May 29, 2018 at 2:39:59 PM UTC-7, jfitch wrote:
> On Tuesday, May 29, 2018 at 1:03:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
> > Agreed.
> > Vaseline is better than dry or old lube.
> > Cheap and easy to get.
> > Easy to use.
> >
> > If assembling for a season, maybe something better.
> > Keep in mind, very limited movement so lube quality is less of an issue..
> > Yes, some may say the "wings will fall off" if you use the wrong lube. In this case, not likely.
>
> I can't agree with the "anything" specification. The main pins do not move, but the lift and drag pins clearly do work in flight, with considerable pressure on them. Any glider a few years old will show signs of wear, galling, or Brinelling on those pins. From this is seems to me that something with some extreme pressure ingredients is desirable.

My observations as well regarding wear. After replacing a set of lift pins I switched away from "Superlube" to a lithium based grease designed for high bearing pressures.

Craig

[email protected]

May 30th 18, 03:43 AM

My main objection to Vaseline is that it essentially liquefies at a low temperature and just drips away.

I fly in the high desert southwest US, with temps hitting 100 degrees F in the summer. Vaseline has no "sticking power" at these temps. Many lithium lubricants (Lubriplate, etc.) also have the same characteristics.

The synthetic silicone lubes and synthetic lithium products have a wider temperature range, and stick around on really hot days.

Whatever works for you is best, but at least use SOMETHING.

Jonathan St. Cloud

May 30th 18, 06:03 AM

Hi Jon, might I ask what you use for pin lube?

On Tuesday, May 29, 2018 at 2:39:59 PM UTC-7, jfitch wrote:
> On Tuesday, May 29, 2018 at 1:03:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
> > Agreed.
> > Vaseline is better than dry or old lube.
> > Cheap and easy to get.
> > Easy to use.
> >
> > If assembling for a season, maybe something better.
> > Keep in mind, very limited movement so lube quality is less of an issue..
> > Yes, some may say the "wings will fall off" if you use the wrong lube. In this case, not likely.
>
> I can't agree with the "anything" specification. The main pins do not move, but the lift and drag pins clearly do work in flight, with considerable pressure on them. Any glider a few years old will show signs of wear, galling, or Brinelling on those pins. From this is seems to me that something with some extreme pressure ingredients is desirable.

krasw

May 30th 18, 07:58 AM

On Wednesday, 30 May 2018 00:39:59 UTC+3, jfitch wrote:
> On Tuesday, May 29, 2018 at 1:03:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
> > Agreed.
> > Vaseline is better than dry or old lube.
> > Cheap and easy to get.
> > Easy to use.
> >
> > If assembling for a season, maybe something better.
> > Keep in mind, very limited movement so lube quality is less of an issue..
> > Yes, some may say the "wings will fall off" if you use the wrong lube. In this case, not likely.
>
> I can't agree with the "anything" specification. The main pins do not move, but the lift and drag pins clearly do work in flight, with considerable pressure on them. Any glider a few years old will show signs of wear, galling, or Brinelling on those pins. From this is seems to me that something with some extreme pressure ingredients is desirable.

I bet the wear is mostly due 1) sand and dust getting into lubricant, 2) rigging with force instead of correct technique. Light-coloured lubricant is better in this respect, it turns into black when dirty, telling you that interval between lubrication is too long.

Senna Van den Bosch

May 30th 18, 08:13 AM

Op woensdag 30 mei 2018 01:56:52 UTC+2 schreef Charlie M. (UH & 002 owner/pilot):
> Oh, I don't disagree, trust me with my mechanical background.
> Dry is among the worst case, crappy lube is better than nothing.
>
> While we strive to be in the "perfect world", Vaseline is way better than nothing.
>
> Not everyone wants to spend "x" dollars on lube, just like some peeps try to do a season with one set of wing tapes to the fuselage.
>
> I am not here to judge, just saying Vaseline is way better than nothing.
>
> I have been chastised when pulling wing tape and balling it up.
> I just "wasted" a seasons worth of tape....shame on me......
> Thus I use Scotch type 33 white electrical tape. Not a killer on price and easy to get.

I just ordered a small pot of ball bearing grease which Dan Daly suggested to try out, as I used up all my vaseline. I just need them for the main pins to assemble the wings on my DG 101.

I might take a look at Amazon next, when I've tried this one.

[email protected]

May 30th 18, 01:02 PM

I would like to add that the synthetic lithium products also do not get HARD in cold weather like vasaline.

jfitch

May 30th 18, 04:45 PM

On Tuesday, May 29, 2018 at 10:03:52 PM UTC-7, Jonathan St. Cloud wrote:
> Hi Jon, might I ask what you use for pin lube?
>
> On Tuesday, May 29, 2018 at 2:39:59 PM UTC-7, jfitch wrote:
> > On Tuesday, May 29, 2018 at 1:03:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
> > > Agreed.
> > > Vaseline is better than dry or old lube.
> > > Cheap and easy to get.
> > > Easy to use.
> > >
> > > If assembling for a season, maybe something better.
> > > Keep in mind, very limited movement so lube quality is less of an issue.
> > > Yes, some may say the "wings will fall off" if you use the wrong lube.. In this case, not likely.
> >
> > I can't agree with the "anything" specification. The main pins do not move, but the lift and drag pins clearly do work in flight, with considerable pressure on them. Any glider a few years old will show signs of wear, galling, or Brinelling on those pins. From this is seems to me that something with some extreme pressure ingredients is desirable.

I use Lubriplate "Special Marine Grease":

https://www.lubriplate.com/Online-Store/14-oz-cans/Special-Marine-Grease-14oz-Can.html

https://www.lubriplate.com/PDFs/PDS/3_31-Special-Auto-Marine.aspx

It is lithium based EP grease that does not contain MolyD, which Schleicher specifically recommends against. (That is probably due to a fear of MolyD and brass corrosion, which is theoretically possible but grease vendors will tell you is not a problem with a properly formulated grease.) It it near white colored and comes in a small 16 oz tub.

Something with MolyD would be ideal, in that it has very good EP anti wear and galling properties, but in this case I stuck with the Schleicher recommendation. I'm not claiming this grease is better than some other choices. But it is temperature stable, light colored, has EP additives, and will not wash off.

jfitch

May 30th 18, 04:58 PM

On Tuesday, May 29, 2018 at 11:58:04 PM UTC-7, krasw wrote:
> On Wednesday, 30 May 2018 00:39:59 UTC+3, jfitch wrote:
> > On Tuesday, May 29, 2018 at 1:03:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
> > > Agreed.
> > > Vaseline is better than dry or old lube.
> > > Cheap and easy to get.
> > > Easy to use.
> > >
> > > If assembling for a season, maybe something better.
> > > Keep in mind, very limited movement so lube quality is less of an issue.
> > > Yes, some may say the "wings will fall off" if you use the wrong lube.. In this case, not likely.
> >
> > I can't agree with the "anything" specification. The main pins do not move, but the lift and drag pins clearly do work in flight, with considerable pressure on them. Any glider a few years old will show signs of wear, galling, or Brinelling on those pins. From this is seems to me that something with some extreme pressure ingredients is desirable.
>
> I bet the wear is mostly due 1) sand and dust getting into lubricant, 2) rigging with force instead of correct technique. Light-coloured lubricant is better in this respect, it turns into black when dirty, telling you that interval between lubrication is too long.

My glider pins are cleaned with degreaser and relubed with fresh grease on EVERY assembly, and it is never left assembled for more than a few days. When I rig it, the procedure I follow aligns everything such that little or no force is used to install wings or pins. I NEVER use the "force it together" rigging aids that seem popular, if it does not easily slide together I correct the misalignment before proceeding. The grease I use is near white in color, but is never used for a second assembly - it is cleaned off and replaced with fresh. Nevertheless, there is wear (that looks like galling) on the lift and drag pins.

I have yet to see a glider with more that 500 hours or so that does not exhibit some wear on these pins.

That may suggest that it doesn't matter what you do to them, but I do try anyway.

Papa3[_2_]

May 30th 18, 06:32 PM

Hey Craig,

For what it's worth... Superlube with PTFE (the one in the tube many of us use) is NLGI rated GC-LB. Per the NLGI folks: "Grease packaging may display the code GC-LB, meaning that it meets the most demanding test standards for both chassis and wheel bearings. Grease products displaying this highest rating meet OEM requirements." Among other comments, it says "Wide temperature grease for use in components such as bearings, chassis and universal joints in passenger cars, trucks, and other vehicles under mild and severe duty.This includes vehicles operated under frequent stop-and-go service (buses, taxis, urban police cars, etc.), or under severe braking service (trailer towing, heavy loading, mountain driving, etc.) (see ASTM D4950)."

Just curious what the specs of the other grease you are using meets. Not doubting you, just looking for data.

P3

Dan Marotta

May 30th 18, 07:50 PM

When I sold my LAK-17a, the buyer, an inspection authorized A&P
mechanic, noted that there was no 1,000 hour inspection noted in the
logbook.Â* So we got out my digital caliper and I measured each component
and read the results to him.Â* He recorded the numbers and compared them
to the Maintenance Manual.Â* Everything was within new factory
specifications.

I believe I had used lithium grease the whole time I owned the ship.

On 5/29/2018 3:39 PM, jfitch wrote:
> On Tuesday, May 29, 2018 at 1:03:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
>> Agreed.
>> Vaseline is better than dry or old lube.
>> Cheap and easy to get.
>> Easy to use.
>>
>> If assembling for a season, maybe something better.
>> Keep in mind, very limited movement so lube quality is less of an issue.
>> Yes, some may say the "wings will fall off" if you use the wrong lube. In this case, not likely.
> I can't agree with the "anything" specification. The main pins do not move, but the lift and drag pins clearly do work in flight, with considerable pressure on them. Any glider a few years old will show signs of wear, galling, or Brinelling on those pins. From this is seems to me that something with some extreme pressure ingredients is desirable.

--
Dan, 5J

jfitch

May 30th 18, 09:12 PM

On Wednesday, May 30, 2018 at 11:50:40 AM UTC-7, Dan Marotta wrote:
> When I sold my LAK-17a, the buyer, an inspection authorized A&P
> mechanic, noted that there was no 1,000 hour inspection noted in the
> logbook.Â* So we got out my digital caliper and I measured each component
> and read the results to him.Â* He recorded the numbers and compared them
> to the Maintenance Manual.Â* Everything was within new factory
> specifications.
>
> I believe I had used lithium grease the whole time I owned the ship.
>
> On 5/29/2018 3:39 PM, jfitch wrote:
> > On Tuesday, May 29, 2018 at 1:03:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
> >> Agreed.
> >> Vaseline is better than dry or old lube.
> >> Cheap and easy to get.
> >> Easy to use.
> >>
> >> If assembling for a season, maybe something better.
> >> Keep in mind, very limited movement so lube quality is less of an issue.
> >> Yes, some may say the "wings will fall off" if you use the wrong lube. In this case, not likely.
> > I can't agree with the "anything" specification. The main pins do not move, but the lift and drag pins clearly do work in flight, with considerable pressure on them. Any glider a few years old will show signs of wear, galling, or Brinelling on those pins. From this is seems to me that something with some extreme pressure ingredients is desirable.
>
> --
> Dan, 5J

Micrometer measurement on pins that have galled may actually show growth as the metal is upset. Visual inspection will still show wear/galling/Brinelling. It would take an extreme case of this to cause a structural issue, so perhaps it is something that can be routinely ignored. Still, it's one of those things that doesn't look or feel good.

I notice in looking up the specs that Superlube has a "High Temperature Extreme Pressure" version with significantly better wear index figures. That might be the one to buy if you like Superlube.

Craig Funston[_3_]

May 30th 18, 11:04 PM

On Wednesday, May 30, 2018 at 10:32:54 AM UTC-7, Papa3 wrote:
> Hey Craig,
>
> For what it's worth... Superlube with PTFE (the one in the tube many of us use) is NLGI rated GC-LB. Per the NLGI folks: "Grease packaging may display the code GC-LB, meaning that it meets the most demanding test standards for both chassis and wheel bearings. Grease products displaying this highest rating meet OEM requirements." Among other comments, it says "Wide temperature grease for use in components such as bearings, chassis and universal joints in passenger cars, trucks, and other vehicles under mild and severe duty.This includes vehicles operated under frequent stop-and-go service (buses, taxis, urban police cars, etc.), or under severe braking service (trailer towing, heavy loading, mountain driving, etc.) (see ASTM D4950)."
>
> Just curious what the specs of the other grease you are using meets. Not doubting you, just looking for data.
>
> P3

HI Eric,

I just switched to Lucas "Red 'n' Tacky". It has the same NLGI GC-LB rating.. I hadn't seen anything in the Superlube literature that talked about extreme pressure suitability. It's entirely possible I missed that.

https://lucasoil.com/products/grease/red-n-tacky-grease

Craig
7Q

Craig Funston[_3_]

May 30th 18, 11:33 PM

On Wednesday, May 30, 2018 at 3:04:53 PM UTC-7, Craig Funston wrote:
> On Wednesday, May 30, 2018 at 10:32:54 AM UTC-7, Papa3 wrote:
> > Hey Craig,
> >
> > For what it's worth... Superlube with PTFE (the one in the tube many of us use) is NLGI rated GC-LB. Per the NLGI folks: "Grease packaging may display the code GC-LB, meaning that it meets the most demanding test standards for both chassis and wheel bearings. Grease products displaying this highest rating meet OEM requirements." Among other comments, it says "Wide temperature grease for use in components such as bearings, chassis and universal joints in passenger cars, trucks, and other vehicles under mild and severe duty.This includes vehicles operated under frequent stop-and-go service (buses, taxis, urban police cars, etc.), or under severe braking service (trailer towing, heavy loading, mountain driving, etc.) (see ASTM D4950)."
> >
> > Just curious what the specs of the other grease you are using meets. Not doubting you, just looking for data.
> >
> > P3
>
> HI Eric,
>
> I just switched to Lucas "Red 'n' Tacky". It has the same NLGI GC-LB rating. I hadn't seen anything in the Superlube literature that talked about extreme pressure suitability. It's entirely possible I missed that.
>
> https://lucasoil.com/products/grease/red-n-tacky-grease
>
> Craig
> 7Q

Eric,

30 seconds of googling produced a spec sheet for an extreme pressure version of Superlube. http://www.super-lube.com/tech-data-sheet-extreme-pressure-ezp-92.html

Craig

Tom BravoMike

May 31st 18, 01:21 AM

On Wednesday, May 30, 2018 at 5:33:13 PM UTC-5, Craig Funston wrote:
> On Wednesday, May 30, 2018 at 3:04:53 PM UTC-7, Craig Funston wrote:
> > On Wednesday, May 30, 2018 at 10:32:54 AM UTC-7, Papa3 wrote:
> > > Hey Craig,
> > >
> > > For what it's worth... Superlube with PTFE (the one in the tube many of us use) is NLGI rated GC-LB. Per the NLGI folks: "Grease packaging may display the code GC-LB, meaning that it meets the most demanding test standards for both chassis and wheel bearings. Grease products displaying this highest rating meet OEM requirements." Among other comments, it says "Wide temperature grease for use in components such as bearings, chassis and universal joints in passenger cars, trucks, and other vehicles under mild and severe duty.This includes vehicles operated under frequent stop-and-go service (buses, taxis, urban police cars, etc.), or under severe braking service (trailer towing, heavy loading, mountain driving, etc.) (see ASTM D4950)."
> > >
> > > Just curious what the specs of the other grease you are using meets. Not doubting you, just looking for data.
> > >
> > > P3
> >
> > HI Eric,
> >
> > I just switched to Lucas "Red 'n' Tacky". It has the same NLGI GC-LB rating. I hadn't seen anything in the Superlube literature that talked about extreme pressure suitability. It's entirely possible I missed that.
> >
> > https://lucasoil.com/products/grease/red-n-tacky-grease
> >
> > Craig
> > 7Q
>
> Eric,
>
> 30 seconds of googling produced a spec sheet for an extreme pressure version of Superlube. http://www.super-lube.com/tech-data-sheet-extreme-pressure-ezp-92.html
>
> Craig

It's even "Kosher Certified" - WOW! That has finally convinced me.

danlj

May 31st 18, 04:34 AM

On Saturday, May 26, 2018 at 8:34:36 AM UTC-5, Senna Van den Bosch wrote:
> I'm trying to find a good lubricant for assembly, available in Europe. Any ideas? Currently using regular vaseline.

No additional facts for metals: fretting corrosion is important..
But.. for the carbon-fiber/epoxy pieces...
I was given very bad advice when I bought my glider in 2000 - "lubricate everything"! and used a light petroleum-based spray on the carbon parts. They grew! After carefully re-sizing them with 1000-grit paper, I switched first to high-pressure spray-on graphite lube for a few years. Works nicely to let the carbon parts slide without binding, but marks up everything. Then I switched to a wax lubricant, which does the same job without black or grease. The wing extension pins are the key point here.

Casey[_2_]

May 31st 18, 11:16 PM

https://lucasoil.com/products/grease/white-lithium-grease

Craig Funston[_3_]

June 1st 18, 01:13 AM

On Wednesday, May 30, 2018 at 3:33:13 PM UTC-7, Craig Funston wrote:
> On Wednesday, May 30, 2018 at 3:04:53 PM UTC-7, Craig Funston wrote:
> > On Wednesday, May 30, 2018 at 10:32:54 AM UTC-7, Papa3 wrote:
> > > Hey Craig,
> > >
> > > For what it's worth... Superlube with PTFE (the one in the tube many of us use) is NLGI rated GC-LB. Per the NLGI folks: "Grease packaging may display the code GC-LB, meaning that it meets the most demanding test standards for both chassis and wheel bearings. Grease products displaying this highest rating meet OEM requirements." Among other comments, it says "Wide temperature grease for use in components such as bearings, chassis and universal joints in passenger cars, trucks, and other vehicles under mild and severe duty.This includes vehicles operated under frequent stop-and-go service (buses, taxis, urban police cars, etc.), or under severe braking service (trailer towing, heavy loading, mountain driving, etc.) (see ASTM D4950)."
> > >
> > > Just curious what the specs of the other grease you are using meets. Not doubting you, just looking for data.
> > >
> > > P3
> >
> > HI Eric,
> >
> > I just switched to Lucas "Red 'n' Tacky". It has the same NLGI GC-LB rating. I hadn't seen anything in the Superlube literature that talked about extreme pressure suitability. It's entirely possible I missed that.
> >
> > https://lucasoil.com/products/grease/red-n-tacky-grease
> >
> > Craig
> > 7Q
>
> Eric,
>
> 30 seconds of googling produced a spec sheet for an extreme pressure version of Superlube. http://www.super-lube.com/tech-data-sheet-extreme-pressure-ezp-92.html
>
> Craig

Of note: The Lucas "Red 'n' Tacky" has a Timken OK load rating of 60 lb whereas the Superlube has a lower rating of 40 lb.

My observations are that this type of high pressure sliding capacity along with corrosion resistance is what matters for pin longevity.

https://lucasoil.com/pdf/TDS_Red-Tacky-Grease.pdf

http://www.super-lube.com/tech-data-sheet-extreme-pressure-ezp-92.html

https://en.wikipedia.org/wiki/Timken_OK_Load

YMMV

Craig,
7Q

Roy B.

June 4th 18, 02:28 AM

E-Coll grease is what Schleicher ships with their new gliders. If it's good enough for them it works for me.
https://shop.eriks.be/en/high-performance-grease-lz-pr1444656970017/
ROY

Jonathan St. Cloud

June 4th 18, 03:47 PM

On Sunday, June 3, 2018 at 6:28:26 PM UTC-7, Roy B. wrote:
> E-Coll grease is what Schleicher ships with their new gliders. If it's good enough for them it works for me.
> https://shop.eriks.be/en/high-performance-grease-lz-pr1444656970017/
> ROY

I have found that glue to have the friction coefficient of sandpaper, worse under pressure. Not so easy with the Schleicher non-tampered pins.