Is this this the correct sodder to use when working on circuit boards

I use it for wiring small switches on my model railway. It's fairly thin so doesn't take many seconds to melt. I would think it's OK for soldering components on a circuit board.

do you still need to use flux with this?

Hello dear friend, this does not need a flux, direct use of fire can be.

can i use this to repair a sterling silver ring?

I think the binding force on soldering is too weak for ring. This is usually for electronic components assembly.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Solder Wire,0.8mm Soldering Wire Lead Free Sn99.3 Cu0.7 with Rosin Core for Electronic Electrical Soldering Components Repair and DIY. (50, Grams) Net 45g

Solder Wire,0.8mm Soldering Wire Lead Free Sn99.3 Cu0.7 with Rosin Core for Electronic Electrical Soldering Components Repair and DIY. (50, Grams) Net 45g

Product ID: 451212314

🔥185-190°C optimal melting point

🧵0.8mm precision diameter

♻️Lead-free, eco-safe alloy

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 15.10

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Description

⚡ Solder smarter, not harder—lead-free precision for the modern maker!

COMPACT PORTABLE - Small 20g pack fits in your pocket—ready for on-the-go fixes and DIY mastery
ROSIN CORE FLUX POWER - Built-in flux boosts solder flow and joint strength—no extra cleaning needed
ECO FRIENDLY LEAD FREE - Sn99.3 Cu0.7 alloy ensures safe, sustainable repairs without toxic lead
EFFORTLESS MELTING POINT - Melts cleanly at 185-190°C for smooth, efficient workflow
PRECISION PERFECT DIAMETER - 0.8mm wire for flawless, detailed soldering every time

This 0.8mm lead-free solder wire features a high-purity Sn99.3 Cu0.7 alloy with a rosin core flux, delivering excellent electrical and thermal conductivity. Designed for professional and DIY electronic repairs, it melts cleanly at 185-190°C, creating strong, bright joints without toxic lead. Its compact 20g packaging makes it ultra-portable, perfect for quick fixes on the move.

Specifications

ASIN	B0B3DDDCD5
Batteries Required?	No
Best Sellers Rank	23,123 in DIY & Tools ( See Top 100 in DIY & Tools ) 19 in Solder
Colour	50 G
Customer Reviews	4.5 4.5 out of 5 stars (1,790)
Date First Available	29 Jun. 2022
Included Components	solder wire
Item Weight	50 g
Item model number	SW003
Manufacturer	Sumwitum-UK
Package Dimensions	4.6 x 4.1 x 2.5 cm; 50 g
Part Number	SW003
Power Source	ac

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Abdullah B.

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

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 15.10

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews