Im not sure what type of metal im using it on. It is non magnetic. Will this black oxide harm the metal in any way or will it just not have an affect?

If it’s non magnetic, then this will not work. Whether it would harm the metal is dependent on what sort of metal it is.

Will this work on a steel putter head?

Yes, as long as it is carbon steel. If you don’t like the final finish, it is as easy as sanding the putter back to its original state. I hope this helps.

Once sealed, can the oil be removed to avoid atracking dust? Looking for something to restore typewriter linkages, and they must be assembled "dry".

This product is just the blackener. The sealer is not included. If you want a dry finish, seal it with our "Caswell Sealer" as opposed to the oily penetrating sealer.

Will this work on Aluminum Alloy ?

This will not work for aluminum. There is another product that you can order online that will darken aluminum. I do not remember the name specifically.

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Caswell BLACK OXIDE CONCENTRATE 1 QT

Product ID: 746649732

Details

Brand
Caswell
Item form
Liquid
Item weight
1.09 kg
Manufacturer
Caswell
Unit count
32.0

🧴1 qt concentrate makes 2.5 gal solution

⏱️30 sec to 10 min blackening time

⚙️600-1200 sq.ft. coverage/gallon

Description

⚡ Elevate your steel game with Caswell’s powerhouse black oxide concentrate!

SEALABLE FOR LONGEVITY - Pair with Caswell Sealers to protect your finish and keep your parts looking flawless.
RAPID BLACKENING ACTION - Transform steel parts in as little as 30 seconds—speed meets precision.
VERSATILE DILUTION RATIO - Mix 1:9 with distilled water for a potent, ready-to-use solution.
PROFESSIONAL GRADE FINISH - Achieve a sleek, durable black oxide finish ideal for knife making and metalwork.
UNMATCHED SURFACE COVERAGE - Blacken up to 1200 sq.ft. per gallon—maximize efficiency and minimize waste.

Caswell BLACK OXIDE CONCENTRATE 1 QT is a professional liquid solution designed to blacken iron and steel parts (excluding stainless steel) with exceptional coverage of up to 1200 sq.ft. per gallon. It offers rapid blackening in 30 seconds to 10 minutes at room temperature and requires dilution at a 1:9 ratio with distilled water. Ideal for knife makers and metalworkers seeking a durable, sleek finish, it must be sealed post-treatment using Caswell’s sealers for lasting protection.

Specifications

ASIN	B09MR7SK8L
ASIN	B09MR7SK8L
Brand Name	Caswell
Customer Reviews	4.5 4.5 out of 5 stars (57)
Customer reviews	4.5 4.5 out of 5 stars (57)
Item Form	Liquid
Item Weight	2.4 Pounds
Item Weight	1.09 kg
Manufacturer	Caswell
Manufacturer	Caswell
Manufacturer reference	BOCONC1Q
Part Number	BOCONC1Q
Unit Count	32.0 Milliliters

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