Can it be used on brass

It is ok to use this solder for the brass, But this solder is very fine, the diameter is 0.01 in / 0.3mm solder wire, If you soldering a big brass, you should use larger solder wire, such as 1.0mm or 1.5mm solder wire

does this can be used to solder aluminium wires ?

Yes, this fine electrical solder wire can be used to soldering the aluminum wires, The solder wire diameter is 0.01inch / 0.3mm, very thin solder wire, It is mainly for electronics soldering for components or wires

Can this be coiled around toothpicks without straightening back?

Yes. It will probably relax some.

Can I use this with soldering iron to repair keychain?

This is super thin that is ideal for working of soldering on motherboards. May need to find a larger size solder wire.

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⚡ Solder Smarter, Not Harder — The Ultra-Thin Wire That Powers Precision!

PREMIUM LEAD FREE ALLOY - Sn99 Ag0.3 Cu0.7 composition ensures superior conductivity and reliable joints without toxic lead.
RAPID MELTING EFFORTLESS FLOW - Melts quickly at 419°F, compatible with all soldering tools for faster project completion.
VERSATILE FOR ELECTRONICS DIY - Perfect for fine electronics repair, manufacturing, and hobbyist projects—your go-to solder wire.
PINPOINT PRECISION FOR TINY SMD PADS - Ultra-thin 0.01in diameter wire designed for flawless micro soldering.
ROSIN CORE FLUX 2 5 FOR CLEAN JOINTS - Integrated flux improves flow and reduces rework, saving you time and labor costs.

This 50g spool of ultra-thin 0.01in (0.3mm) lead-free solder wire features a high-performance Sn99 Ag0.3 Cu0.7 alloy with 2.5% rosin core flux. Melting at a low 419°F, it delivers fast, clean, and precise soldering ideal for tiny SMD pads and fine electronics work, making it essential for professionals and DIY enthusiasts aiming for flawless connections.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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€ 33.32

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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Manufacturer	Enersystec Electric Co.,Ltd
Part Number	EST-SW35-0.3LDF50
Item Weight	1.76 ounces
Product Dimensions	1.1 x 1.1 x 2.17 inches
Item model number	EST-SW35-0.3LDF50
Size	Thin Gauge
Color	Silver
Material	lead
Power Source	ac
Item Package Quantity	1
Special Features	1. Ultra-thin 0.01inch diameter, Rosin Core, Flux 2.5%, Flow well, Lead Free Solder Wire
Included Components	0.3mm solder wire LeadFree
Batteries Included?	No
Batteries Required?	No

Ultra-Thin Solder Wire 0.01in 0.3mm Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder

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