Material Similar to Silicone

Do you mean to "fill" the tubing ID completely with this material or do you instead mean to "line the inside wall" of the tubing with it?

I can maybe help if it's the latter. Can you tell us more about the application?

The application of this tubing is that it is going to house fiberoptics as well as other wires to power a source attached to it. The tubing is made of a material that will not deteriorate inside of a liquid scintillator.

The problem with filling the void area around the wires inside the tube with silicone is that silicone with deteriorate if it were to be exposed to the scintillator. This is why im trying to find a material that will be as flexible and quick setting like silicon, as well as dielectric so that it can act as a secondary wall so to say inside the tube. I hope that helps a bit.

http://imagine.gsfc.nasa.gov/docs/science/how_l2/xray_scintillators.html

If its any use, i did some work some years ago using a high power X-ray tube and the silicone we used for temporary positioning suffered no ill effects.

Thx alot this seems like this fluoroelastomer caulking might do the trick.

Liquid tape...... Home Depot.....Electrical asile..... It is electrical tape in a can.... pretty cool...

what or where is home depot and what country ?

Hello MossyOaks, This may not be what your looking for But 3M has a line of sealing heat shrink tubing.

I've used several different types of this product. The tubing and sealant/glue is chemical resistant to a lot of products. In rebuilding damage cables with probes attached trying to soften the glue to remove it to redo the connections with new cables. For my methods was to use lacquer thinner on a rag after using heat and knife to remove the outer layer to rub the glue off the connectors took some effort/time. Over all very few failures of water intrusions or other liquids from oils to some fuels. Most failures were either excess stress or improper assembly.

You can order the tubing in different sizes and shrink ratios from pre-cut packs to 1 meter links. Some are stiffer than others. One thing you can do is form the tubing w/bends while it's still warm from shrinking using hot air gun or flame source. Just be careful the glue sticks to skim "not fun".

I would recommend TEFLON as a potential option for your specific need. Non stick coated vessels using TEFLON are very popular. Check with those connections.

Air?

i.e. just don't fill the tube with anything. Is there a problem with this?

Forgot to add a problem.

The material you are looking for is air drying, And from past experience of filling a tube with silicone sealer the stuff cured at the ends but remained uncured in the middle as once ends become cured it then becomes airtight in the middle.

Do i take it you need to fill tube to stop the wires etc moving about, Or as some one else has said use air.

the only other way round it would be to use a resin type ie two mix so its not dependent on being open to the air to set/cure.

quick setting as well as dielectric.

PS Silicone uncured conducts just for info, I tried sealing some electronic parts once using silicone and it never worked again

You have to use neutral cure siliicne [ non conductive]not the acid cure. however he said silicone is not suitable.

Try this link

http://www.smooth-on.com/Urethane-Rubber-an/c6_1117/index.html

This is the same base as your tubing.

Ah missed that bit

Thanks