Turbo gasket failure.... bye bye BDC, and HC pardigm shift right here LOL
 

Well who is sick to fuck of V'Bands leaking? or failures of SS gaskets or even inconel ones! in flange turbo's ! I know I am!!!!

Well now thanks to aviation and military use there is a solution!

This stuff allows PROPER metal to metal CONTACT with no pre load lost over time via ANY GASKET!, there is NO GASKET to melt away once the pre load is lost either! this shit is liquid GOLD!

The problem!

http://i.imgur.com/rK2PAxx.jpg

The solution!

http://i.imgur.com/8uD2N5e.jpg

Needs a turbo blanket to keep those post turbine EGT's in check :smilielol5:

Got your email... I'm intrigued.... so is it a paste that hardens? can it be removed and reapplied? Does it allow the turbo to be removed easily?

I'm guess it's a compound that remains tacky throughout it's life. So smear a bit on both sides of the gasket, assemble, and when you need to take the turbo off, the gasket is garbage and the compound can be mechanically removed?

I may have to pick up a tube of this, as well as something else x2 :suspect:

Looks like you would use this on two flat machined surfaces without a gasket of any kind to seal

BDC = gaylord to HC paradigm wind chill shift calculations
 

NO GASKET! Gaskets are always the problem as they loose preload over time and then FAIL.

This is a paste that allows metal to metal contact in the high spots between V'Bands and Flat flanges and the paste fills in the voids, creating a leak free joint, for rigid flanges like turbos, v'bands etc.

The compound is slightly flexible at 800deg C but at room temperature after curing it is 'brittle' to remove tap part with plastic/nylon mallet and to remove cured compound soak in water for 1 hours then wire brush it off.

Its a great product! say good by to BDC and HC styled failures LOL :117:

Cool find. Is that first pic one of my manifolds :) ?

Yeah its one of yours, I ripped the pic off the net and added my own color chart to show the temperatures in various zones.

This product is 'un believable' I do recommend when you use it on flanged turbos that you have enough room to 'tap' the exhaust housing relative to the manifold flange, to crack the seal cause at room temperature on disassemble you will need to 'break' the joint, once its cured it sticks to the mating flanges and itself like shit to a blanket.............. best thing I have ever used.

Def will never leak again though :) Ass loads of OEM gas turbine, turbocharger, reciprocating engine manufacturers, and military use and specify only this product for rigid exhaust connections.

very interesting find. what kind of abuse did this hold up to on your setup, peter?

Initially: I got it on the recommendation of a Borg Warner engineer who has used it on 'everything' for a decade. Also others I know who work/ed in aviation and have used it only as stated with zero failures/leaks.

For me I tested it only recently to ~1100deg C EGT on a T4 flanged set up that was prone to EATING gaskets, problem solved so far. :302:

This came about due to me doing research on alternative sealing methods (spent 2 months on it with various people around the world) and wanting to go away from the use of gaskets on normal bolted flanged turbos, but also eliminating leaks on V'bands... I have other systems that I will/am testing such as Nickle based wire in a groove machined into the turbo flange, but so far that system is not needed with the use of this product

Done this and it works well, the only downside is the setup time for machining. Until we discovered even this wasn't necessary.

We stopped using gaskets on the drift cars a couple of years ago, and stopped having problems too. No paste either. Just flat mating faces, and most importantly, black cap screws in place of studs - less stretch.

Try the paste mate, your turbo supplier got me onto it ;) as NOTHING is ever perfectly flat, I know being a machinist by trade :)
p.s. he is my supplier now, real top bloke!
p.p.s G8 or higher BOLTS and nuts clamping the two flanges are the ONLY way to do it, you see this on OLD 1970's turbo cars too!

Marmon clamps. We used those and metal seals inside the high temp bleed air systems on supers.

You think this could work on a set of stock twins for a FD? I go thru gaskets about once a year and it's annoying. Just how hard is it going to be to get them apart if I wish to do so later?

I dont see why It wont work? tests so far have been 100%.
To get apart at room temp all it takes is a 'tap' with a soft mallet (brass).

Looking around I found this.
Deacon Industries - Deacon 8875 paste sealant (500 deg F to 1800 deg F) almost 1000 deg C
Renolit 762 (800 deg C)

Most high-powered turbo rotaries will exceed that max...


-Ted

The flanges never go above 500deg C, this is why some people get away with just using high temp silicone in these areas (its very common).

I posted the actual temp gradients above in post #1 as proof of this.

That other internet search product, good luck applying it.
This stuff I listed is approved and used by everyone, its a no brainer and it works :) feel free to use it.