Rudder bushes not nylon because it swells up, so...

[tangomoon]

What do I use. A chap who had a stall at Boat Jumbles was selling cylindrical shapes of something called (or pronounced 'seetle', which is the material you're supposed to use for rudder bushes because it doesn't swell in water. Anybody know what the material is called and where to get it please.

 

[Phoenix of Hamble]

Its Zytel.... but where it comes from I don't know...

 

[2Tizwoz]

Acetal? /forums/images/graemlins/smile.gif Also under the trade name Delrin.

A local plastics company should be able to supply what you need.

Or you could buy online from someone like this company.

Zytel is a nylon marketed by DuPont having improved properties described here on Wikipedia

 

[tangomoon]

That's the stuff - thanks - now hopefully someone will know where to get it.

Ps not reading your blog - I don't need depressing any further /forums/images/graemlins/grin.gif

 

[kds]

There is also a lubricant-impregnated plastic with very low absorbtion properties which is ideal for the lower bearing. Expensive !.
If the Alzheimers clears - I'll let you know what it is called.
Ken

 

[tangomoon]

Acetal - great! Remember that now much appreciated

 

[mtb]

tufnol

http://www.directplasticsonline.co.uk/home.php?cat=86

take a look
tufnol is a very hard wearing material ideal for marine applications easy to machine into any shape also good re water lubrication

cheers

 

[2Tizwoz]

This is available online

from Cockup.com men's health centre

Not available on the NHS yet as far as I know. But what do I know?

 

[ERICH]

possibly the best plastic material for this application is called Vesconite HiLube produced by a company called Vesco Plastic Sales in South Africa . UK freephone # 0800 731 9745 or email ian@vescinite.co.za ; website www.vesconite.com

 

[tangomoon]

/forums/images/graemlins/laugh.gif

That will have them rolling in the aisles

 

[tangomoon]

That stuff is the biz! Certainly going to get some and give it a go. Thanks

 

[rogerthebodger]

PM me with youe e-mail address and I can send you a list of vesconite specials price list.

I use then all the time

Have no connection just happy customer

 

[pyrojames]

Re: tufnol

But a note of caution, it swells significantly in water, and tolerances should be made accordingly.

 

[savageseadog]

Re: tufnol

Delrin (Acetal) is the way to go. It doesn't absorb moisture. I've bought it on ebay

 

[Sy-Revolution]

Re: tufnol

Try eBay for Delrin, I bought some recently from there for a few quid.

 

[mickshep]

How much do you need? I've got a couple of bits left over from machining up new cutlass bearing, pm me, regards, Mike

 

[tangomoon]

Thanks to all. These forums are a source of infinite knowledge and tremendous bun fights! /forums/images/graemlins/grin.gif