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Weldability SIF Silver Solder Flux Jar – 225 & 500g


40% Silver Solder 2.0mm Rod Cadmium Free


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Over 50 years welding expertise
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An active Silver Solder Flux with a working temperature range of 600-800°C, designed for use with Sif Silver Solder alloys and SifCupron CuPAg alloys.

Ideal for hot-dipping of the brazing rod or for brush-on application as a paste, mixed with water.

Working temperature – 600 – 800°C



Sif Silver Solder Flux can be used on most common metals capable of being brazed with silver brazing alloys melting up to 750°C, including steels and coppers, and can be used to braze stainless steel at temperatures below 700°C.



Description Part No.
Silver Solder Flux 225g Jar FO380022
Silver Solder Flux 500g Jar FO380050


Additional information
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Weldability SIF






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Free Click and Collect with no minimum spend from our warehouse on the Empress Park, Southampton with on-site parking. Once your order has been processed, we will advise you when it is ready for pickup.  Just want advice?  No problem.  Feel free to call in to speak to one of our friendly experts.

EWS Fleet Coverage Areas: 
Southampton | Eastleigh | Winchester | Alton | Farnham | Petersfield | Havant | Hayling Island | Waterlooville | Fareham | Portsmouth | Gosport | Chichester | Arun | Worthing | New Forest | Christchurch | Salisbury | Wiltshire | Test Valley | Basingstoke and Deane | West Berkshire | Reading | Hart | Waverley | East Hampshire | East Dorset | Hampshire | Bournemouth | Poole | Lymington | Ringwood | Verwood | East Preston | Goring-by-Sea | Lancing | Shoreham-by-Sea | Steyning | Bramber | Horsham | Adur

Nationwide Delivery (all items excluding gas cylinders):
Free UK mainland (England, Scotland and Wales) delivery on orders over £85 inc. VAT.
UK mainland delivery is £7.50 inc. VAT on orders under £85 inc. VAT.
UK islands and Northern Ireland shipping costs may vary.

UK Delivery for Gas Cylinders:
Shipping costs for gas cylinders are calculated at checkout once the delivery postcode is entered.

International Delivery:
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Typical Weld Metal Composition

Ag 40%
Cu 30%
Zn 28%
Sn 2%

Typical Mechanical Properties

Melting Point 670-710°C
Ult Tensile Strength 440 N/mm²
Hardness 130

EN ISO 17672 Ag 140

Weldability SIF Silver Solder Flux Jar - 225 & 500g

Weldability SIF Silver Solder Flux Jar – 225 & 500g

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