I have a custom hose that was formed by wrapping silicon rubber tape around a mold and likely vulcanized.
This small section of hose, which is a complex shape with multiple ports has started to delamanite.
are there any DIY repairs on the market to essentially re-wrap this or dip in some sort of rubber?
why not wrap it in kevlar???
That being said… you could probably rewrap it in VHB tape… they make single sided now… or you could go with double and put a layer of silicone tape on the other side…
I would garuntee that the best place to go for something like this would be ferry hydraulics… tehy would probably know of somebody who could do it… or sombody who could seal it…
I have access to oil resistant 2 part urethane. Operating temp is only 220F, though.
i dont think this is a part subject to oil… pretty sure its the supercharger intake tube… im just guessing anyways…
Conveniently, I was actually planning on stopping there today for something different and was trying to gather a bit more info before talking with them.
interested. 220°F is enough. PM me or call me when you’re available to discuss…? Would love to take care of it ASAP while things are torn apart.
Anything I do would probably have to be done in house, though, because it comes out pre-mixed… I can see if i get a little bit of each part unmixed, but the ratio is pretty important.
I don’t know a TON about it, but can probably get you a sample of what it looks/feels like when cured.
Also, it’s GREEN
Be aware that a lot of VHB Tape is designed for LOW static loads…the safety factor on most 3M stuff is 1/4 to 1/2 psi. Also, heat just makes this worse. Typically above 115 F.
I have worked with this stuff for years…
Really? i thought VHB was the end all be all of tapes? used in aircraft etc… or are their all differant types?
Ferry Hydraulic had minimal input. Their only solution was to bring it in and they know somebody who can custom make another one. I’m sure that’s not the cheapest option.
Josh is this boosted or atmospheric?
atmoshpheric for the most part… partial vacuum. It’s for the supercharger intake, but it’s letting in unmetered air.
I bet the uerthane would be great for this.
How visible is it?
minimal.
Gorilla Super Glue works great on rubber… it was the only thing i could find that would bind rubber reliably when i was doing a project years ago…
you just need to put a substrate on top of it… i would recommend getting some bicycle tubes and cutting it into strips
can this hose be made out of something other than rubber? WHat is the diameter of the hose?
is it silicone rubber? what about cleaning it and using a little rtv?
Brian
If you cant duct it…fuck it 
i was wondering if it could be bent using hard line.
VHB is a great “shock” tape that can hold up to 20x its load factor for a short duration. However, constant pressure over time, especially with heat, will affect most commercial VHBs. Now, there are ranges for the styles of tape for the core thickness, adhesives that are used, application pressure, the use of an adhesion promoter which help a vast selection of applications. However, these are ALL dependant on the surrounding environment conditions and substrate interaction.
There are different “categories” of VHB, not types, but they all follow the same basic principal. You first need to answer the following when determining if VHB is practical, to start:
The construction of the VHB, generally speaking, is a double sided adhesive tape with a “Foam” core. This gives the tape the visco-elastic properties that make it very desireable for many different applications. Since it never actually becomes rigid it will protect either substrate during temperature changes. Works great for bonding two different CTEs (Coefficient of Thermal Expansion).
Of course there are always other factors that affect it. The best thing to do is test it and see. Odds are any of the commercial stuff available works great for holding a picture on a wall or keeping a compass stuck to a dashboard (I have done these) but I don’t think it will help Josh in this particular instance.
All in all VHB is a science in itself from what I gather. The factory where they make VHB is actually highly restricted. More so than the General Dynamics Tank Facility I have been to in Sterling Heights, MI. That being said the Nasa grade stuff is most likely highly specialized for their own individual applications. I actually saw a sample of a VHB that is not on 3M commercial list of products. The salesman said it was an Aerospace application but did not say what it was for. It was black and had no markings on it. Usually the transfer paper says 3M or something on it. There was no Part Number visible and he took it with him when he left.
Sorry for the discussion…I love this technical shit when I understand it.
Viper, hope this answered your question. If you ever want to play with it I have a shit ton laying around of the 3M 4905. Let me know.