---
product_id: 48320751
title: "MG Chemicals 4900P SAC305, Lead Free Solder Paste, No Clean, 25 g (0.9 oz) Pneumatic Dispenser (Complete with Plunger & Dispensing Tip)"
brand: "mg chemicals"
price: "¥8972"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/48320751-mg-chemicals-4900p-sac305-lead-free-solder-paste-no-clean
store_origin: JP
region: Japan
---

# 3% Silver SAC305 formula for superior conductivity Excellent Wettability for flawless surface mount soldering No Clean Flux ensures corrosion-free, insulated joints MG Chemicals 4900P SAC305, Lead Free Solder Paste, No Clean, 25 g (0.9 oz) Pneumatic Dispenser (Complete with Plunger & Dispensing Tip)

**Brand:** mg chemicals
**Price:** ¥8972
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your solder game with MG Chemicals’ lead-free precision paste!

## Quick Answers

- **What is this?** MG Chemicals 4900P SAC305, Lead Free Solder Paste, No Clean, 25 g (0.9 oz) Pneumatic Dispenser (Complete with Plunger & Dispensing Tip) by mg chemicals
- **How much does it cost?** ¥8972 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/48320751-mg-chemicals-4900p-sac305-lead-free-solder-paste-no-clean)

## Best For

- mg chemicals enthusiasts

## Why This Product

- Trusted mg chemicals brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stronger, Cleaner Joints:** Superior joint strength with non-conductive, non-corrosive residues
- • **Precision Dispensing, Zero Waste:** Pneumatic dispenser with plunger & tip for controlled application
- • **Cost-Efficient Lead-Free Solution:** No nitrogen needed, reducing operational expenses
- • **Thermal Stability Without Nitrogen:** Optimized flux system prevents degradation in normal air reflow
- • **Flawless Print Definition & Tack Life:** Exceptional print clarity and extended working time for complex assemblies

## Overview

MG Chemicals 4900P SAC305 is a 25g lead-free solder paste featuring a 3% silver formula and no-clean flux. Designed for surface mount applications, it offers excellent wettability, superior joint strength, and thermal stability without requiring nitrogen atmosphere. Its pneumatic dispenser ensures precise, waste-free application, making it ideal for professional electronics assembly with clean, corrosion-free results.

## Description

MG Chemicals has developed a unique flux system designed specifically for high temperature lead free alloys. It provides the fluxing activity levels that promote thermal stability and prevents thermal degradation when reflowing under air atmosphere (normal). Since use of nitrogen is not required, MG 4900P Lead Free Solder paste will provide excellent cost savings. In addition, MG 4900P Lead Free solder paste exhibits superior joint strength, excellent wettability, and extraordinary print definition and tack life. The post soldering residues of MG 4900P are non-conductive, non-corrosive and highly insulated.

## Features

- 3% Silver (SAC305) formula
- No Clean Flux
- Easily Dispensed
- Excellent Wettability
- Ideal for surface mount applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Unit count | 1 Count |
| UPC | 779008490075 |
| Manufacturer | MG Chemicals |
| Global Trade Identification Number | 00779008490075 |
| Part number | 4900P-25G |
| Item Weight | 25 g |
| Product Dimensions | 5 x 2 x 20 cm; 25 g |
| Item model number | 4900P-25G |
| Colour | Grey |
| Style | 4900P-25G |
| Pattern | Single |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** MG Chemicals
- **Material:** Polypropylene (PP)
- **Product dimensions:** 5L x 2W centimetres
- **Item volume:** 25 Millilitres
- **Sterility rating:** Non-Sterile

## Images

![MG Chemicals 4900P SAC305, Lead Free Solder Paste, No Clean, 25 g (0.9 oz) Pneumatic Dispenser (Complete with Plunger & Dispensing Tip) - Image 1](https://m.media-amazon.com/images/I/31P-8icBRbL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Lasts MUCH longer than expected
*by E***Y on 23 March 2023*

UPDATE March 2025: I bought this in March 2023 and wrote this review a few weeks later. As it turned out I didn't need to use very much of it and the syringe, properly closed with the cap, lay in a cupboard in my home office for eighteen months. Out of curiosity, I tried it the other week and rather to my surprise it was still easy to squeeze out from the syringe and still makes perfectly good soldered joints. I have never refrigerated it. Whilst as ever your mileage may vary, it does seem much longer lasting that usual for this type of material and isn't quite as particular about storage as one might expect.This is fairly good solder mixed with a lot of flux.I must say that "no clean" is a little optimistic given the large amounts of flux. The flux cannot be cleaned off with water so you may wish to buy a suitable cleaner / flux remover. Otherwise, it does the job well.You need very little of the paste to make a sound joint on SMD devices. Accordingly the syringe full will last quite some time for hobby use. On that, I would say that I bought this at the end of January and now, eight weeks later, it is still perfectly usable despite never seeing the inside of a refrigerator. Kept in an coolish room (20 degrees), it has lasted well. Whether that would also apply during a hot summer is another question. However, if you are able to refrigerate it and extend its life I suggest you do so.Overall, good value even if you do end up throwing half of it away. If you're soldering SMD components, you really do need paste rather than wire solder, so the options are limited.

### ⭐⭐⭐⭐⭐ Used to repair a couple of surface mount boards in High end audio devices. No problme at all
*by N***L on 17 July 2022*

I kept this in the fridge from new and leave it out to reach room temp, I have had no issues at all with applying it; the supplied needle could arguably be a slightly smaller bore, but with a delicate touch, it applies without too many issues. I clean the paste from the needle after use by heating the needle with a hot iron and using a solder pump; not sure if this is necessary, but it works well and ensures I have no issues next time.

### ⭐⭐⭐⭐ Excellent surface mount solder paste at a very good price but you may need a narrower nozzle.
*by G***H on 17 November 2020*

This solder paste is excellent - needs keeping in the fridge like they all do but does the job. My only criticism is that the nozzle is too wide for chips with really narrow pin spacing as you end up with too much solder paste which leads to getting it under the chip legs and causing short circuits. From years of experience I find that the best way to solder surface mount chips is to put a very thin line of solder paste across the outer ends of the PCB pads only. After finding this nozzle too large but managing to get there I found I already had some finer sample nozzles from EFD! However I see on Amazon the Chip Quick solder paste does have a narrow nozzle but costs twice as much. If you do lots of surface mounting get one of these as well for the nozzle!!

## Frequently Bought Together

- MG Chemicals 4900P SAC305, Solder Paste, No Clean, 25 g (0.9 oz) Pneumatic Dispenser (Complete with Plunger & Dispensing Tip)
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- MG Chemicals 4902P Sn42Bi57Ag1 Low Temperature Solder Paste T3, NO Clean, 25 Gram Pneumatic Dispenser (Complete with Plunger & Dispensing Tip) (4902P-25G)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-31*