MG Chemicals Liquid Tin PCB Plating Solution 125ml

Easy Tin Plating for DIY & Home Electronics

MG Chemicals Liquid Tin makes it simple for everyday makers, hobbyists, and electronics enthusiasts to give homemade or custom printed circuit boards a professional finish. This convenient PCB tin plating solution quickly coats exposed copper traces with a high-purity tin layer in just five minutes or less at room temperature. No mixing or dilution requiredsimply pour, immerse your board, and rinse clean with warm water.

Why Use MG Chemicals Liquid Tin?

• Provides excellent solderability: The pure tin deposit improves the ease and quality of soldering.
• Protects against oxidation and corrosion: Extends circuit board lifespan by shielding copper from the elements.
• Fast and easy application: Tin your DIY PCBs in minutes with no special tools or preparation.
• No mixing required: Ready to use straight from the bottle.
• Superior to basic “Tinnit” kits: Achieves a thicker, more durable tin finish for reliable, long-term performance.

Technical Details

• Part Number: 421A-125ML
• Volume: 125 mL (4.2 fl. oz.)
• Coverage: Up to 3,600 square inches per 500mL (approx. 900 sq. in. per 125mL bottle)
• Type: Immersion tin solution for copper surfaces
• Deposit: Thick, bright, solderable pure tin layer
• Residues: Easily rinses off with warm water
• Origin: Made in the USA

For Home & Small-Scale PCB Projects

This MG Chemicals PCB tinning solution is popular with DIYers, electronics repairers, and students for making prototypes and small-batch PCBs. Its easy to use at home and gives your circuit boards a clean, professional lookplus helps protect against oxidation and improve soldering for future repairs or upgrades.

Important Safety & Shipping Info

• This tin plating solution contains chemicals and is intended for commercial/industrial use only.
• Note: This product contains thiourea, a chemical known to cause cancer in the State of California. For safety info, see: www.P65Warnings.ca.gov.
• Shipping restriction: Cannot be shipped by air. Ships via UPS Ground only.

Discover more about MG Chemicals 421A Liquid Tin at the manufacturers site: MG Chemicals 421A Liquid Tin.