Attributes

Brand	-
Category	Storage & Organization / Others
Origin	-
Material Compatibility	Designed for 304 and 316 Stainless Steel
Primary Function	Manganese content detection and alloy verification
Packaging Type	Dropper bottle with secure cap
Volume	20 ml per unit
Reaction Time	Color change occurs within 30-60 seconds
Shelf Life	24 months from manufacturing date
Storage Condition	Store in a cool, dry place away from direct sunlight
Safety Warning	For industrial use only; avoid skin contact
Origin	Manufactured in certified laboratory facilities
Application Method	Apply one drop to cleaned metal surface

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Standard industry tool

Nothing fancy, just a solid tool for quality control. The instructions were clear and easy to follow.

Anonymous

Mar 30, 2026

Rating: 5/5

Fast and reliable

Got immediate results on a batch of pipes we were unsure about. Highly recommend for any fabrication shop.

Anonymous

Mar 28, 2026

Rating: 4/5

Works well but needs care

The reagent works exactly as described. Just make sure to clean the surface thoroughly before applying, or the result might be skewed.

Anonymous

Mar 21, 2026

Rating: 5/5

Essential for our scrap yard

We process tons of metal daily, and this liquid saves us from mixing up 304 and 316 grades. The color distinction is very clear.

Anonymous

Mar 11, 2026

Rating: 5/5

Accurate identification

Used this to verify a supplier's claim on a large order. It correctly identified the manganese content difference between the grades.

Anonymous

Mar 06, 2026

Rating: 3/5

Good product, small bottle

The testing liquid is effective, but the 20ml bottle runs out quickly if you are testing large quantities every day.

5 FAQ

Q: Is this safe to use indoors?

A: It should be used in a well-ventilated area. While not highly volatile, standard industrial safety precautions including gloves and eye protection are recommended.

Q: Can I test painted surfaces?

A: No, the surface must be bare metal. You need to grind or sand off any paint, coating, or rust before applying the reagent for an accurate reading.

Q: Can this liquid be used on aluminum or only steel?

A: This specific reagent is formulated exclusively for distinguishing manganese content in stainless steel grades like 304 and 316. It is not suitable for aluminum testing.

Q: What colors indicate 304 versus 316?

A: Typically, a rapid darkening indicates higher manganese content associated with certain grades, while 316 shows a different reaction profile. Please refer to the included color chart for precise interpretation.

Q: Does the solution expire after opening?

A: Once opened, it is best used within 6 months for optimal accuracy, provided the cap is sealed tightly after each use and stored correctly.

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