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.

0 3mm 50g | Desertcart British Virgin Islands

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$39.04

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Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Solder smarter, not harder — precision meets performance!

RAPID MELT TECHNOLOGY - Melts quickly at 419°F (217°C), compatible with all soldering tools to speed up your workflow.
VERSATILE APPLICATION - Ideal for electronics repair, DIY projects, manufacturing, and fine soldering studies.
LEAD FREE ECO FRIENDLY - Safe for home, office, and professional use without compromising performance or health.
PREMIUM ALLOY COMPOSITION - Sn99 Ag0.3 Cu0.7 formula ensures excellent electrical conductivity and reliable joints.
PINPOINT PRECISION SOLDERING - Ultra-thin 0.01in diameter wire perfect for delicate MSD pads and microelectronics.

This 50g spool of ultra-thin 0.01in (0.3mm) lead-free solder wire features a rosin core flux 2.5% and a premium Sn99 Ag0.3 Cu0.7 alloy. It melts rapidly at 217°C, ensuring fast, clean, and reliable solder joints ideal for fine electronics work, repairs, and manufacturing.

Specifications

Asin	B07VT4MLD1
Batteries Included	No
Batteries Required	No
Best Sellers Rank	222,208 in DIY & Tools (See Top 100 in DIY & Tools) 156 in Solder
Colour	Silver
Customer Reviews	4.6 4.6 out of 5 stars (8) 4.6 out of 5 stars
Date First Available	29 July 2019
Included Components	0.3mm solder wire LeadFree
Item Model Number	EST-SW35-0.3LDF50
Item Package Quantity	1
Item Weight	50 g
Manufacturer	Enersystec Electric Co.,Ltd
Material	lead
Part Number	EST-SW35-0.3LDF50
Power Source	ac
Product Dimensions	2.8 x 2.8 x 5.5 cm; 50 g
Size	Thin Gauge
Special Features	1. Ultra-thin 0.01inch diameter, Rosin Core, Flux 2.5%, Flow well, Lead Free Solder Wire

Reviews

D**L

Great soldering wire

Great soldering wire, melts very well amd is very thin.

18.02.2026

M**N

Well priced, good quality.

Very well priced, good quality, lead free soldering wire; the diameter is perfect for mobile phone circuitry micro soldering, and is easy to use. 5*****

30.11.2025

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$39.04

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered 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 British Virgin Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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0.3mm/50g

Description

Specifications

Reviews

Common Questions