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J.W. HARRIS, SBSKPOP, Stay Brite Solder KIT

Q: at what temperature does this melt?

Harris regular Stay-Brite(Not Stay-Brite #8) is advertised as an Sn96/Ag4 alloy, but it's MSDS says that the actual Silver content ranges from 3.4 to 3.8%. The eutectic point for an Sn/Ag alloy is 96.5% Sn and 3.5% Ag with a eutectic temperature of 221C(429.8F). For reference, any purely bi-metal alloy of only Tin and Silver with a silver content anywhere from 2% to 10%(and possibly an even wider range) always has a solidus temperature of 221C. Raising, or lowering, the silver content above or below 3.5% results in the liquidus temperature going *up*, but the solidus temp always stays at 221C. For example, a pure Sn96/Ag4 alloy has a liquidus temperature 8C higher than the eutectic point, at 229C(444.2F). So to answer your original question, this solder will completely melt somewhere between 429.8F and 444.2F, which is a fairly narrow range for solder actually.

Q: can this make a solid solder joint between aluminum and stainless steel?

had a similar joint to do, ended up using original JB weld and it has held up well so far. for a stronger joint you may look into super alloy 1 solder

Q: Would this silver solder be appropriate for potmetal repair?

I do not believe so, Pot Metal is mostly Zink. This product works great on Iron & Mild Steel. Stay-Brite is a fantastic Silver Solder, I use it exclusively and rate it at 5 Stars. For Pot Metal, Muggy Weld works well . The only problem with Muggy Weld is they want $19 for a small bottle of liquid flux AND charge $19 Dollars for shipping The Flux, once opened has a very short shelf life.( A tiny 4 oz bottle) In short, Muggy Weld works BUT they Rip you off on price via their outrageous shipping charge.

Q: Will this be good for soldering copper pipe to aluminum garden hose body type application?

No it will not work on aluminum and I don’t know of any solder that would. Sorry 🤷🏽♂️

4.6/5

Product ID: 518313776

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HARRIS SBSKPOP Stay-Brite Silver Bearing Solder Kit

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Description

J.W. HARRIS, SBSKPOP, Stay Brite Solder KIT

Specifications

Manufacturer	Harris
Part Number	SBSKPOP
Item Weight	0.16 ounces
Product Dimensions	1 x 0.5 x 1 inches
Item model number	SBSKPOP
Is Discontinued By Manufacturer	No
Material	silver
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

at what temperature does this melt?

can this make a solid solder joint between aluminum and stainless steel?

Would this silver solder be appropriate for potmetal repair?

Will this be good for soldering copper pipe to aluminum garden hose body type application?

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