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MOULDING RUBBER
Ian Pearson - 7/1/04 at 06:11 PM

Thinking of trying to mould some flexible covers to cover up those dreaded non standard sharp edges. I know that Frost do some liquid rubber type stuff, but it's not cheap. Anyone know of an alternative source?


Mark Allanson - 7/1/04 at 07:11 PM

I have used single pack screen bond to 'remake' unavailable moulds and bushes with great success.


Ian Pearson - 8/1/04 at 09:33 AM

Thanks Mark. What's the trade name of this stuff, and where can I get it?

Regards, Ian.


Peteff - 8/1/04 at 06:50 PM

I'd thought of using Sikaflex type stuff to mould some using something like a small aerosol lid for the mould. Petroleum jelly the inside of the lid and the outside of a nut then fill it up and stick the nut in. I'll try it next time I buy some sealer. It might work with ordinary mastic but I've only got some pink left over from the bathroom and it wouldn't match.

yours, Pete.


Simon - 8/1/04 at 10:00 PM

Ian,

There's a stuff from a company called Smooth-On who do various silicone rubbers, but as you said, it's very expensive (about £400/5gallons) but that'd be a lot of bits. It's more of a mould makers "flexible friend"

I'd thought about doing aerofoil shaped covers in rubber for wishbones etc, but think cost would be prohibitive.

To get the best results from it, you'll need a vacuum pump/chamber to get the best from them at they tend to be mixed with an electric drill, so get quite aerated.

My fathers foundry uses it, and numerous other makes, all of who's names have escaped me for the moment. IIR, I'll find out more over the weekend.

HTH

ATB

Simon


flyingkiwi - 9/1/04 at 11:01 PM

I've got some stuff in the garage called prc that we use at work for fuel tanks and sealing windscreens. Easy to mix, comes in a tube with the mixer built in, just pump it 70 odd times then smear on.

Used it to stick the missus's wind deflectors onto the car, and they stayed on at 125mph. They've been stuck on for well over a year now with no sign's of it breaking down.

You could mould it into bolt shapes using a mould of some sort's (lid would work fine) and a nut, both smeared in vaseline, but it takes a while to set. about 24 hours at 20^. It takes paint well so you could paint over them with any sort of colour you liked (gotta be better than the s**t brown colour it is).

Its out of date, so can't be used on aircraft but fine for using on the car. Have used it to form seal's on all my ali panels before riveting.

If you want a tube give me a shout, no charge for it! just the p+p (dunno how much that will be though)

Chris

Oh and it absolutely honks