Silver Solder

I am David Ward from Alveston and I manage the Society’s silver solder bank. The Society hold stocks of most solders and fluxes used for copper boiler making as well as citric acid for pickling and a small brazing hearth. There are also some meshes for making spark arrestors. We aim to provide these materials at competitive prices, even for small quantities.

You can contact me by phone (preferably) or e-mail (see membership list for details) and I will deliver to Begbrook or Ashton or you may arrange to collect from me at Alveston. NB this is a members only facility so I will need your membership number.

The EU have now banned the retail sale of silver solder containing cadmium from December 2011. We still own stocks of cadmium bearing alloys and members are advised to only use such grades in well ventilated situations, do not overheat the work and avoid breathing fumes.

Stock Items Are :-


Melting Range 620-630oC

50% Silver Contains Cadmium

1mm dia. wire £6.00 per metre

Easyflow No 2

Melting Range 608-617oC

42% Silver Contains Cadmium

1.00mm wire £5 per metre

0.90mm wire £4.50 per metre

0.70mm wire £3.50 per metre

0.50mm wire £2.50 per metre


38% Silver. Contains Cadmium. Joint Gap 2-8 thou.

Melting range 608-655oC

1.5mm rod 600mm long each £4.25

40% Silver contains Cadmium

Melting Range 595-630oC

1.5mm rod, 600mm long each £4.50

Silver Solder 455

Melting range 630-660oC

55% Silver, Cadmium free

0.50mm wire 1m long each £6.00

0.70mm rod 500mm long each £2.45

1.0mm rod 500mm long each £3.50

0.1mm foil 20mm X 150mm each £12.50

1.5mm rod 500mm long each £6.25

1.5mm rod 600mm long each £7.25 (1 rod only)

1.5mm flux coated 500mm long each £7.45

2.00mm rod 500mm long each £12.18

2.00mm flux coated 500mm long each £15.12

2.5mm rod 500mm long each £16.80 

Silver Solder 438

Melting range 650-710oC

40% Silver, Cadmium free

1,5mm rod 500mm long £5.00 each

Silverflo 424 Also listed as C4, Lx13 or 24

Melting range 740-780oC High Temperature

24% Silver, Cadmium free

1.5mm rod  600mm each £4.30 

Or Workshop clearance :-

5 of 1.5mm rod  short lengths total 1135mm

33 rings internal diam 100mm approx, plus some bits Job Lot £4.30.

Silver Solder 418  

Melting Range 776-815oC

15% Silver Cadmium Free

A close colour match for brass

1.5mm rod each £3.70

Comsol Soft Solder

Melting point 296 C

3mm wire price per foot £5.00

Fry’s Tinman’s Solder (ex-motor garage)

Melting Point believed to be 183/190 solidus/liquidus

Trapezium section approximately 3/8 X 1/4 inches

Approximately 8” per length – £5.50 each.

Soft Solder Fluxes (liquids)

Baker’s No 3 125ml  £7.80   

Baker’s No 3 250ml    £10.00

Easyflo Flux by CupAlloys (powder)

General purpose 

Temperature range 550-800oC

Remove residue with warm water or dilute citric acid.

100g each £6.00

250gm each £15.00

Tenacity Flux 4A by Johnson Matthey (powder)

Higher temperature for step brazing with Silverflo 16 or similar.

Temperature range 600-850oC

Remove residue with 10% sulphuric acid

100g each £7.00

250gm tub each £17.50

CuP High Temperature flux (powder)

Used for high temperature silver solder or stainless steel

100gm each £9.00

Stainless Steel Wire Mesh 12 gauge or 21 Gauge

For Spark arresters.

6X12″ approx. £4 each (either Gauge)

also mild steel mesh (ex fire guard) very malleable but probably will need replacement annually. Ask if interested.

Brazing Hearth

Hearth consists of 3
 vermiculite blocks plus 1 plate (200mm x 230mm) and insulation blanket to fit

£35.00 each (one only at this price –may split)

Citric Acid Crystals For Pickle Bath

95 gms.  in screw top plastic container. Add to 4.5ltrs of clean water in a suitable container to make pickle. £2.50 each.