---
product_id: 447233372
title: "SRA Solder No-Clean Electronics Soldering Flux Paste, Safe for Lead and Lead Free Assembly. Non Acid Flux for Soldering Electronic Circuit Boards (PCBs) and Electrical Wire Tinning. USA Made (2oz Jar)"
brand: "sra soldering products"
price: "₩25626"
currency: KRW
in_stock: true
reviews_count: 8
category: "Sra Soldering Products"
url: https://www.desertcart.kr/products/447233372-sra-solder-no-clean-electronics-soldering-flux-paste-safe-lead
store_origin: KR
region: South Korea
---

# 2-Year Shelf Life No-Clean, Non-Acid Flux Proudly USA Made SRA Solder No-Clean Electronics Soldering Flux Paste, Safe for Lead and Lead Free Assembly. Non Acid Flux for Soldering Electronic Circuit Boards (PCBs) and Electrical Wire Tinning. USA Made (2oz Jar)

**Brand:** sra soldering products
**Price:** ₩25626
**Availability:** ✅ In Stock

## Summary

> ⚡ Flux like a pro — clean, safe, and always ready to spark brilliance!

## Quick Answers

- **What is this?** SRA Solder No-Clean Electronics Soldering Flux Paste, Safe for Lead and Lead Free Assembly. Non Acid Flux for Soldering Electronic Circuit Boards (PCBs) and Electrical Wire Tinning. USA Made (2oz Jar) by sra soldering products
- **How much does it cost?** ₩25626 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/447233372-sra-solder-no-clean-electronics-soldering-flux-paste-safe-lead)

## Best For

- sra soldering products enthusiasts

## Why This Product

- Trusted sra soldering products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Compliant:** RoHS compliant and free from corrosive Zinc & Ammonium Chloride for worry-free electronics work.
- • **Compact & Portable:** 2oz 'hockey puck' jar fits perfectly in your professional toolkit for on-the-go repairs.
- • **Long-Lasting Freshness:** Stable formula with a 2-year shelf life ensures readiness whenever duty calls.
- • **Precision Flux Control:** Petrolatum-based paste stays put for exact application, minimizing waste and mess.
- • **High-Temperature Resilience:** Flash point at 285°C and boiling point at 337°C for reliable performance under heat.

## Overview

SRA Solder No-Clean Electronics Soldering Flux Paste is a premium, petrolatum-based flux designed for precise, safe soldering on PCBs and electrical wiring. Made in the USA, this 2oz jar offers a non-acid, RoHS-compliant formula free from corrosive agents, ensuring clean joints and long-lasting reliability with a 2-year shelf life. Ideal for professional electronics repair and assembly, it balances ease of use with high thermal stability.

## Description

135NC is a Petrolatum-based soldering paste that contains a Resin and organic acid activator. The Resin helps protect the solder joint against corrosive attack, and the paste form ensures that the flux stays put until soldering. Unlike many paste fluxes, the No. 135NC does not contain any Zinc Chloride or Ammonium Chloride, thus making it a safe and effective choice for electrical and electronic applications.PHYSICAL PROPERTIES Form Amber Paste Specific Gravity 0.95-1.00 Flash Point 285°C / 540°F Boiling Point 337°C / 640°F Total VOC 3.00% VOC Less Water and Exempt Solvents 3.00% Spread Factor 80 Minimum Shelf Life Two (2) Years if stored cool and dry

Review: Very good flux paste! - Not too much to say, it's Flux paste. However, it's very easy to use and apply, and clean up afterwards. Works great!
Review: Pleasantly surprised. - After reading some of the reviews about how hard this is to apply, I was a little hesitant. It works well. On a day to day basis, I'd rather use rosin based liquid solder, but a paste is so much easier to carry around. This paste is a bit stiff which makes it kind of hard to work with - it's about as stiff as Chapstick brand lip balm, but it's not terribly bad. In fact, I melted some of it down and filled an empty lip balm tube to carry this around in my portable electronics repair kit. Works like a charm.

## Features

- The ideal flux for electrical and electronic repairs
- Contains 2 ounce in a "hockey Puck" jar
- Type No-Clean Flux
- This Product is RoHS Complaint

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B2HXJNMB |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #126,387 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #129 in Soldering Flux |
| Color | No-clean Flux |
| Customer Reviews | 4.7 4.7 out of 5 stars (139) |
| Date First Available | August 24, 2021 |
| Item Weight | 2.08 ounces |
| Item model number | 135NC |
| Manufacturer | SRA Soldering Products |
| Material | lead |
| Part Number | FLS135NC |
| Product Dimensions | 2.36 x 1.06 x 2.32 inches |

## Images

![SRA Solder No-Clean Electronics Soldering Flux Paste, Safe for Lead and Lead Free Assembly. Non Acid Flux for Soldering Electronic Circuit Boards (PCBs) and Electrical Wire Tinning. USA Made (2oz Jar) - Image 1](https://m.media-amazon.com/images/I/51CqZJ6tC9L.jpg)

## Questions & Answers

**Q: Will the No clean flux work to solder aluminum to copper wire?**
A: Soldering these two materials often fails & its not the fault of the flux. It requires special technique. First, one must heat the aluminum and melt solder to it. Second, "tin" the wire. Finally, heat both copper and aluminum before bonding.

**Q: What does the no-clean version mean?**
A: I believe it means that whatever you are soldering does not have to be cleaned for the product to work.

**Q: Is the no-clean version of this product hard/solid compared to rosin version?**
A: The No-Clean Version is a soft jell type paste. Very Good.

**Q: Is this the flux that Voultar uses? It's a very soft, jelly like flux that sticks to wire very easily without bending the strands.**
A: This is more of a cream than a jelly.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good flux paste!
*by D***E on December 27, 2024*

Not too much to say, it's Flux paste. However, it's very easy to use and apply, and clean up afterwards. Works great!

### ⭐⭐⭐⭐⭐ Pleasantly surprised.
*by A***M on March 21, 2023*

After reading some of the reviews about how hard this is to apply, I was a little hesitant. It works well. On a day to day basis, I'd rather use rosin based liquid solder, but a paste is so much easier to carry around. This paste is a bit stiff which makes it kind of hard to work with - it's about as stiff as Chapstick brand lip balm, but it's not terribly bad. In fact, I melted some of it down and filled an empty lip balm tube to carry this around in my portable electronics repair kit. Works like a charm.

### ⭐⭐⭐⭐⭐ Essential for soldering
*by T***U on December 14, 2023*

I used to use normal rosin flux for soldering but this no clean flux is much better. Not having to worry about cleaning up your PCB after soldering is very convenient. I can a little bit of flux on all of the parts I'm going to soldering using a toothpick and I've had great results.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/447233372-sra-solder-no-clean-electronics-soldering-flux-paste-safe-lead](https://www.desertcart.kr/products/447233372-sra-solder-no-clean-electronics-soldering-flux-paste-safe-lead)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-14*