Shame I couldn't get to my local rally, working shifts can be a pain.
I've not heard of SF40, 24 and 55 are what I've got + some EF#2. I bought 50
sticks of the stuff the guy sells on homeworkshop.org. Not used any yet,
claimed to be JM SF55. 3x1mm sticks 600mm long, 50 sticks for £82 posted.
Sounded too good to miss as I have a 7 1/4" Dart boiler to do. I picked up
all the copper (mostly 4mm) for £185, weighs in at 35kg.
I have lots of good quality firebricks, the soft yellow ones (from work!)
and I can get lots (and lots) of ceramic blanket also from work. These
together with oxy propane should make a big (ish) boiler easy.
Simon
ps, the website and your workmanship are a great advert for the gauge, it
ought to be advertised more, but that would possibly put your bandwidth
through the roof!


----- Original Message -----
From: "John Baguley" <baggo@...>
To: <halfinchlivesteamforum@...>
Sent: Wednesday, November 29, 2006 11:42 AM
Subject: Re: [Half inch live steam forum] Helen Longish - progress so far


> Hi Simon,
>
> Yes, the only reason for soldering the tubeplate in first was I
> thought it would be one less joint to do later! I used Silverflo 40.
> The final soldering will be done with Easyflo.
>
> The soldering was all done with propane using 2943 and 2944 burners. I
> used Silverflo 24 for the barrel joint and throatplate joint and I
> must admit it was a struggle. I did do the boiler in the open air
> though with no packing which didn't help. I'm beginning to think that
> using very high melting point solders such as 24 is not necessary.
> Silverflo 40 is much easier to use and still leaves a margin for using
> Easyflo for the final joints.I'd love to get some Oxy-propane as I've
> got a Simplex boiler to build soon!
>
> I've also got the boiler for the Flying Scotsman to the same stage. I
> took them both to Chesterfield in October for Steve to check over
> before I finish them both.
>
> The cylinders are described in detail on my website - have a look at:
>
> http://www.baggo.copperstream.co.uk/me/locos/25inch/helen%20longish/helen.htm
>
> John