...so what does flux do exactly? -sorry about the noob question, I am still learning-

Flux basically cleans the metal surface you are trying to make a solder bond to. Soldering effectively requires a "wetting" action, that actually creates a metal alloy at the bond. If there are oxides and dust on the contact surface you are soldering to (like a copper bit on a pcb), you will not create a metal alloy, and the bond could be scraped off with a razer blade. If you use flux correctly, you should not be able to easily scrap off the solder, since the solder and two components you are connecting that are metal, are now chemically bonded as an alloy.

What is the shelf life? Does this need to be kept refrigerated like some other solder pastes do?

This is from MG Chemicals Technical Data Sheet: Shelf life 2 years. Storage Temperature Limits 18 to 27 °C 65 to 80 °F Store at around room temperature and protect from direct heat or sunlight.

Is there a trick to get the plunger to remain in the syringe?

You just have to use it for a while. I had the same problem because the ring fits so poorly into the back, but once you use it to the point that the plunger is further in, it's much easier to use. I know, it's a terrible design flaw!

Is this appropriate to use for stained glass?

You could use it for stained glass, but since your solder would be covering a larger surface area, the flux with a brush would make more sense. This is designed for very small solders in tight areas, like electronics repair.

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MG Chemicals - 8341-10ML 8341 No Clean Flux Paste, 10 milliliters Pneumatic Dispenser (Complete with Plunger & Dispensing Tip)

MG Chemicals - 8341-10ML 8341 No Clean Flux Paste, 10 milliliters Pneumatic Dispenser (Complete with Plunger & Dispensing Tip)

Product ID: 1778060

Details

Brand
MG Chemicals
Item Form
Paste
Material
Plastic
Special Feature
Pneumatic
Specific Uses For Product
Soldering and

🔥fast wetting, superior fluxing

⚙️10ml precision syringe dispenser

🛡️non-corrosive, moisture resistant residue

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Description

🔥 Flux like a pro, solder with confidence! ⚙️

NO CLEAN NO HASSLE - Residue is non-conductive and moisture resistant—no post-solder cleanup needed.
RAPID WETTING ACTION - Accelerates solder flow for clean, professional-grade joints in record time.
UNIVERSAL COMPATIBILITY - Works seamlessly with both lead-free and traditional Sn/Pb solder alloys.
RO HS COMPLIANT RELIABLE - Eco-friendly formula trusted by thousands with a 4.7-star rating from pros.
PRECISION DISPENSING ZERO WASTE - Ergonomic 10ml syringe with plunger & tip for flawless application every time.

MG Chemicals 8341 No Clean Flux Paste is a 10ml syringe dispenser designed for precise soldering touch-ups and repairs. Its high-grade synthetic resin formula ensures superior fluxing with rapid wetting, leaving behind non-corrosive, non-conductive, and moisture-resistant residues. Compatible with both lead-free and leaded solder systems, this RoHS-compliant flux paste eliminates the need for residue cleaning, making it a top choice for professional surface mount assembly work.

Specifications

ASIN	B00425FUW2
Best Sellers Rank	#6,247 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Soldering Flux
Brand	MG Chemicals
Brand Name	MG Chemicals
Color	Original Version
Container Type	Syringe Dispenser
Customer Reviews	4.7 out of 5 stars 6,067 Reviews
Global Trade Identification Number	00779008834107
Included Components	Plunger and dispensing tip
Item Form	Paste
Item Package Quantity	1
Item Type Name	No Clean Flux Paste
Item Weight	0.02 Kilograms
Manufacturer	MG Chemicals
Material	Plastic
Material Type	Plastic
Model	8341-10ML
Number of Pieces	1
Other Special Features of the Product	Pneumatic Dispenser
Part Number	8341-10ML-VP
Special Feature	Pneumatic Dispenser
Specific Uses For Product	Soldering touch-ups and repairs for surface mount assemblies
UPC	779008834107
Unit Count	1.0 Count
Volume	10 Milliliters
Warranty Description	[email protected]

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24471CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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