Can i use this flux w/silver solder 43 by allweld?

Yes, this is a generic flux for silver soldering.

Can I use this to solder a small ring on a piece of stainless steel jewelry?

You can But be very careful use a very small tourch not to get to hot, I would try on a scrap piece.

Can this me used on mirror in a stained glass piece?

Nope, this is an active fluoride flux for silver soldering. It also contains borax. After heating, this will eat your mirror, fluxing away the metal coating, and the heat required will destroy the glass pieces. Use the soft solder flux instead also by Harris. Lower temperature, and a bit less active, being an acid flux. Keep it off the mirror coating. I would also try a liquid rosin flux as for electronics, but it may not be active enough for the pewter canes. The pewter develops oxides pretty quick. The old lead canes required an aggressive flux like No-Corrode, but needed neutralization later so the copper edge wraps wouldn't dissolve over time/

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J.W. Harris 348-SSWF1/4 Ha Sta-Silv White 1-4# Flx40020

Product ID: 28909671

📏Perfect 2.38" cube packaging

🔥Active temp range 1050°F-1600°F

⚖️Compact 0.27 lb jar

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TrustScore 4.5 | 7,300+ reviews

Description

🔥 Stay ahead in every joint with Harris Stay Silv Flux!

TRUSTED BY PROS - Over 2,100 glowing reviews with a 4.7-star rating prove industry-leading reliability.
CLEAN EFFICIENT - White flux formula minimizes residue, delivering cleaner joints and less post-work cleanup.
COMPACT PORTABLE - Lightweight 0.27 lb jar fits seamlessly into your toolkit for on-the-go projects.
VERSATILE APPLICATION - Ideal for a wide range of metals and brazing tasks, making it your go-to flux solution.
PRECISION HEAT CONTROL - Optimized flux activity between 1050°F and 1600°F ensures flawless brazing every time.

Harris SSWF1/4 Stay Silv Brazing Flux is a professional-grade white flux in a compact 1/4 lb jar, active between 1050°F and 1600°F. Praised by over 2,100 users with a 4.7-star rating, it offers clean, efficient brazing for diverse metalwork applications.

Specifications

ASIN	B005ENPK6W
Best Sellers Rank	#90,912 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Brazing Flux
Date First Available	March 5, 2008
Department	Industrial
Item Weight	4.2 ounces
Item model number	SSWF1/4
Manufacturer	The Harris Products Group

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TrustScore 4.5 | 7,300+ reviews

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