Ultra-Sol® 201A140

Colloidal Alumina Blend Designed for Precision Polishing of Various Metals

Ultra-Sol 201A140 colloidal alumina slurry is used for polishing a wide variety of materials, including Zinc, Cadmium, as well as other ferrous alloys. Built on the highly successful 200A chemistry, 201A140 is formulated with a unique blend of particles relative to the standard 200A material to provide a finer surface finish on critical materials. These less aggressive yet highly controlled particles enable incredibly smooth finishes on difficult parts. Ultra-Sol 201A140 is widely used in polishing processes where low surface roughness finishes are required on critical parts. The unique colloidal alumina particles consistently provide sleek free results with a ready-to-use formulation. Like Ultra-Sol 200A, the Ultra-Sol 201A140’s acidic pH allows it’s chemical-mechanical action to provide superior, low scatter finishes in a wide variety of applications.

Ultra-Sol® 201A140 Details

Base Material:

Aluminum Oxide

Shelf Life:

12 Months


Product is typically available in 1 gallon jugs, 5 gallon pails, and 55 gallon drums. Alternative packaging sizes may be available upon request.


Aluminum, Cadmium Zinc Telluride, Gallium Arsenide, Indium Phosphide, Nickel, Spinel, Zinc Selenide

Similar Products

Ultra-Sol® 201A280Ultra-Sol® 201A60Ultra-Sol® 200A
Base Material Aluminum OxideAluminum OxideAluminum Oxide
Particle Size (um)
Solids Content22.223.520
Specific Gravity1.191.181.14

Complementary Products

Category - Polishing Slurries

Handling Instructions

This material is a safe, aqueous based slurry. To avoid skin or eye irritation, however, handlers should use appropriate personal protective equipment including: rubber gloves, protective clothing, and eye protection. Follow all MSDS, Safety Data Sheet, and label precautions when handling this slurry. Also follow all appropriate industrial safety and hygiene practices when handling or using this product.

This slurry is designed as a ready to use product directly from the container. If the slurry is to be used in a diluted form, Eminess recommends using only high-quality deionized water (>18 M ohm) for the dilution. The product should be mixed periodically (10 to 20 minutes per day) by recirculation or mechanical stirring to ensure that the particles are uniformly suspended. To avoid possible scratching issues, storage and re-use of on-site diluted slurry is not recommended without proper mixing and filtration.

Due to the unique formulation of this slurry, it is recommended that the user not adjust the pH. If a different pH is required, please contact your Eminess Applications Engineer for assistance with your specific process need.


It is recommended that products be stored up to the expiration date at temperatures between 4°C and 33°C (40°F and 90°F). Products can be stored if kept above freezing (0°C or 32°F), and kept below 38°C (100°F) if prolonged exposure at temperatures at either extreme are avoided. Storage outside of the recommended conditions may result in irreversible product damage. In the event of exposure outside of the recommended conditions, please contact your Eminess representative for recommendations. In all cases the products should be allowed to return to room temperature prior to use.


Dispose of in accordance with all applicable national and local regulations.

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