Nano alumina dispersion liquid (alpha phase)
Crystal form: α-phase
Particle size: 30 nm / 50 nm
Concentration: 20%–40%
pH value: 8–10
Solvent: Water
Product applications: Coatings, polishing
- Product Description
Nano Alumina Dispersion Liquid (Alpha Phase) for Coatings and Polishing: 30 nm and 50 nm, 20%–40% Concentration
Xi'an PUTAI Environmental Protection Co., Ltd. offers Nano alumina dispersion liquid (alpha phase). It is milky white colour aqueous product pre-dispersed, suitable for coatings and polishing. The α-phase alumina particles come in 30 nm and 50 nm diameters with a concentration range of 20% to 40% . pH 8-10 and water is the solvent. Hence, the liquid is designed for water-based systems. It’s pre-dispersed, so you don’t have to handle dry powder and mill it in-house. Contact our staff to discuss your formulation, your grade choices, samples and quotes.
Nano Alumina Dispersion Liquid (alpha phase) Overview
The -phase aluminium oxide (Al2O3) particles in this products are suspended in a milky white liquid. The particle size is either 30 nm or 50 nm and alpha is the hard crystalline form of alumina.
The product is given as a ready-made dispersion, so you don’t have to scatter dry nano-powder yourself. Hard agglomerates in dry powders may harm polished surfaces, therefore using a pre-dispersed liquid can lessen that handling risk. Results may vary with your formulation and method hence we propose a modest trial before scaling up.
Product Specifications
| Parameter | Specification |
|---|---|
| Appearance | Milky white liquid |
| Crystal form | α-phase |
| Particle size | 30 nm / 50 nm |
| Concentration | 20%–40% |
| pH value | 8–10 |
| Solvent | Water |
| Applications | Coatings, polishing |
| Model | Apperance | Crystal form | Partical size (nm) | Purity % | pH | Solvent | Application |
YW-L30W | Milky white liquid | a phase | 30 | 20-40 | 8-10 | water | coating, polishing |
YW-L50W | Milky white liquid | a phase | 50 | 20-40 | 8-10 | water | coating, polishing |
Data not listed in the table, such as packaging, shelf life, or storage conditions, is not stated on this page. Please confirm it with our team before ordering.
Coating Applications
Evaluate Nano alumina dispersion liquid (alpha phase) as an addition for water based coatings where abrasion and scratch resistance are important such as wear resistant topcoats. The tiny particles are meant to disperse across the coating, but you’ll want to verify the impact on hardness and scratch resistance in your own testing.
The liquid is milky white, therefore examine the optical appearance of the cured film before utilising in a clear coating.
Polishing Applications
In polishing, slurry formulas include hard α-phase alumina particles as the abrasive component. On your own substrate, compare the surface quality and removal rate of the 30 nm and 50 nm diameters of the product. The substance is already disseminated, therefore it does not have the hard agglomerates that may be seen in dry powders.
Formulation and Testing Notes
- Compatibility The dispersion is delivered at pH 8–10. Colloidal dispersions may flocculate or gel with a fast change in pH or when an addition is incompatible. Before complete blending, test a small batch of your resin, additives and pH adjusters.
- Concentration range: 20 % to 40 % solids. Pick the amount that suits your recipe and test any dilution with water in a trial.
- Film thickness: A thick alumina film when dried may break. Try the dispersion as an additive, or on thin layers, before committing to a procedure.
How to Request a Sample or Quotation?
Send application (coatings or polishing), ideal particle size (30 nm or 50 nm), desired concentration (between 20%-40%) and estimated volume. Our staff will get back to you with a quote and technical data. You may also request a sample to evaluate the dispersion in your own system. For a standard grade comparison, ask for Nano alumina dispersion liquid (alpha phase) in both particle sizes and perform the experiments side by side.
About Xi'an PUTAI
Xi'an PUTAI Environmental Protection Co., Ltd. was founded in August 2008. The firm is mostly involved in wastewater treatment and drinking water purification chemicals, and incorporates R&D, manufacturing, sales and services.
FAQ
Q: How sensitive is the dispersion to variations in pH?
A: The product is given at a pH of 8–10. Colloidal dispersions may be destabilised by large pH changes or incompatible additions, thus do a compatibility test before combining.
Q: What makes the liquid milky-white?
A: The two grades given, 30 nm and 50 nm, are provided as a milky white liquid. Test the cured film if you want a clear optical coating.
Q: Can it be used as a stand-alone coating?
A: The mentioned uses include polishing and coating. Thick dried coatings may break, therefore test tiny layers or use the dispersion as an ingredient to your composition.
Q: How long does it last and how should it be stored?
A: These are not on this page. Have our experts look them up for you order.
Q: What do I submit for a quote?
A: Please provide your application, particle size, concentration and estimated volume. Sample request is also appreciated.
Contact Us
Do you have more questions about Nano alumina dispersion liquid (alpha phase)? Email sales@ywputai.com with your application, preferred particle size (30 nm or 50 nm), concentration, and expected volume to request a sample or quotation.

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