Casting Filler?

[Bill PudneyParticipant @billpudney37759]

Although it's not quite the same, I heard a story that it took 7 tonnes, that's seven thousand kilograms, of epoxy based filler to fair in the under waterline surfaces of a 3,000 tonne frigate.

I'll bet that not even Myford used quite THAT much!!

cheers

Bill

[Andrew TinsleyParticipant @andrewtinsley63637]

Hello Bill,

Weight for weight, I reckon Myford used as much filler!

Andrew.

[KWILParticipant @kwil]

AND every other machine tool manufacturer!

[KWILParticipant @kwil]

Per Lathes.co.uk

Boxford catalogue (optimistically, one would have imagined) until at least 1977. With the introduction of the Under-drive models came a superior cosmetic finish with the castings carefully fettled, filled with cellulose knifing putty, rubbed down by hand and spray painted. While not to the standard of the very much more expensive Raglan lathe, with its use of special Trimite paints, this new finish (generally in a grey cellulose to BS692 sprayed over a filler) was a considerable improvement over the earlier lathes, the first of which had, to be blunt, a decidedly utilitarian appearance.

[John Stevenson 1Participant @johnstevenson1]

At one point I worked for a while for Raglan Machine Tools who also used Trimite, in fact the trucks used to deliver to us and then to Myford's

I wrote a few observations up of my time there including the prep and painting and sent to to Tony at lathes.co.uk and he was good enough to include it on the Raglan page.

I was never involved in the painting or prep work but solely did aprons and screw cutting gearboxes.

Here is the link,

Painting prep, bottom of the page.

[KWILParticipant @kwil]

A friend refinishes machine tools as part of a rebuilding process. He uses MIPA products, which are spray based (sprayable hi build fillers) but they do have "spreadable" ones

**LINK**

[John Stevenson 1Participant @johnstevenson1]

Ken, that link is just to a two pack car body filler

[KWILParticipant @kwil]

John,

I was not suggesting it was an equivalent of the original TRIMITE product, but that it appears to work as a paste type filler on iron. The chalky original had a very high build capacity, cellulose putty works well for small area repairs but starting from scratch on a large rough casting would be tedious.

[MonomanParticipant @monoman]

Much as I would like to respond fairly comprehensively to the posts that have appeared following my previous post commercial sensitivity and IP considerations prevent me.

However it seems that most comments are on track. John's memories of Raglan usage are about right for the late 60's but that was a tiime of considerable progress in formulations and a different type of 'stopper' gained favour led, of course, by the rapid production needs of the automotive industry.

On a slightly different point raied earlier I can state with some knowledge that it ia highly unlikely that Trimite ever refused to supply anybody with small quanities. Company policy was definitely against any such restriction. Of course my experience goes back before the takeover by Weilburger.

Monoman

[John Stevenson 1Participant @johnstevenson1]

Ken, I was just going on the 3 to 4 minutes working life.

Half the people on this forum would have a heart attack if they had to work that fast

[stan pearson 1Participant @stanpearson1]

After I had turned the wheels for my first loco I ended up with a pile of fine cast iron so I put it in a tin and kept it, I have used it on several castings even blow holes in wheels. I just mixed it with fibre glass resin when dry it blends in well.

Stan

[Ian S CParticipant @iansc]

You just need some iron filings and epoxy for a good filler for parts that need a good fillet, or a hole filled.

Ian S C

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