Does any one here have any experience with this sealant?
It has been recommended to me for sealing problem gaskets, even head gaskets.
Its based on a similar product used in RR aircraft engines.
the specs look good.

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

Hylomar is popular with the Land Rover crowd. I've tried it and I hate it.

It goes on OK, but will not come off...even acetone won't cut it...and it leaks as well. Can't think of a worse sealer. I use Aviation Permatex, it always seals perfectly and cleans up with rubbing alcohol.

This may become like an oil thread. Lots of different opinions...

Harley Davidson used it when they introduced the Evolution engine. I used it for a long time, and never had any problems- didn't have the same experience that cuban8 had either. That being said, I used Curil T on my OM603 rebuild. Very popular with the Porsche crowd for sealing case halves.

__________________
Chief

1991 350SD

I have used Hylomar and generally really like it. It's somewhat similar to using RTV, except it doesn't really harden. It is actually very hard to find in the US now( due to a licensing issue, IIRC) - I have a bit left over from 20 years ago ( yep, doesn't harden and go bad in the tube like stupid RTV) that I am saving for an engine rebuild, but I recently saw a small tube of it at Pep Boys for $10 so perhaps it is making a comeback. The closest thing commonly available is Permatex 2B, which is a sticky miserable brown paste. I like Avaiation Permatex, too, but it's really not used the same way, IMO.

__________________
80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)

I have used it and it is a great sealant. Never could find a tube in the US, going to get some shipped from across the pond.

__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Use Toyota "black" sealant and be done with it for life. The best sealer ever made. Truth.

__________________
99 E300 turbo diesel, 205k
01 Audi S4
97 4runner - 220k
89 Toyota 4 x 4 P/U 227k

^^ I googled toyota black and got this Toyota forum, where many of those guys seem to like Hylomar as much as anything.

What seal packing (gasket material) do you prefer - YotaTech Forums

Toyota Black seems to be RTV, which I try to avoid like the plague. Has a nasty habit of magically appearing in your oil pump pickup screen.

__________________
80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)

Napa can get it. Something on a Mercedes injection pump called for it so I have a tube in my tool box.

__________________
68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i

Funny, admittedly part of the Land Rover crowd and I love the stuff. It's self repairing and you don't have to wait to cure then retorque like standard RTV, just torque and go.

Hit up any mess you make with mineral spirits quickly or, as mentioned above it can be tough to remove.

I also like Locktite 5900 and it may be easier to find. Also the Hylomar 607 is less messy then the universal blue but quite difficult to find. Permatex is the US outlet for Hylomar and the blue is available at pep boys.

__________________
'83 240D

Thanks for the comments so far.
It was recommended to me for use on some joints on my earth moving equipment.
The self healing property is very important because of the extream stresses that occur.

Its great to have those who have used it share their experiences.


Definitely not an "oil thread".

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

This could be a business opportunity for you if you can find it in larger tubes there (80ml) for cheap. We Yanks are getting screwed (35 ml for $10).

__________________
80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)

john deere uses hylomar selant to seal up there 4024 engines, it's white in color and is like a thin rtv and will run if u get to much on. they seal the timing gear cover, oil pan, rocker cover and misc other stuff with it. it. does leak from time to time, but it depends on waht your sealing and if u prep it correctley. i can get u a part number for it and is available thru any jd dealer.

__________________
2011 e320 cdi (132,000) current
2005 Jeep CRD diesel--2.8L (138,000 miles) wrecked, insurance took
1993 Mercedes benz 300D 2.5 Turbo Frybrid powered. (336,000 miles) wrecked and sold as parts car
1990 Mercedes benz 300D 2.5 Turbo (170,000 miles) wrecked and sold as parts car

Check out my Frybrid Vegtable Oil Conversion at http://1990300dfrybridconversion.shutterfly.com/