Contact Details
- Email: jin@ochitest.com
- Phone: +86 18921375901
Metallographic Polishing Liquid
Economical and practical water-based polishing suspension with high-purity alumina (aluminum oxide) abrasives, designed for general metallographic sample polishing and final finishing of common metals. Stable dispersion, mild polishing effect, low residue, ideal for daily laboratory sample preparation.
Alumina Polishing Suspension is a classic and cost-effective general-purpose polishing consumable specially developed for routine metallographic sample preparation. It takes high-purity alpha-aluminum oxide as the core abrasive, matched with a professional water-based dispersant formula to form a uniform and stable suspension system, which avoids particle agglomeration and precipitation during long-term storage and daily use. Compared with diamond polishing agents, it features a milder polishing force, lower cost and easier cleaning, making it the first choice for final polishing and surface finishing of ordinary ferrous metals, non-ferrous metals and alloy samples. This product can effectively remove fine grinding marks and shallow scratches left by previous processing steps, quickly obtain a smooth and clear sample surface suitable for metallographic microscope observation, and is fully compatible with most manual polishing operations and automatic metallographic polishing machines. It is widely used in daily sample preparation work of general metallographic laboratories, mechanical processing quality inspection rooms and material analysis departments, perfectly matching conventional polishing cloths and polishing processes.
2. Core Advantages
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High-Purity Alumina Abrasives: Adopts uniform alpha-aluminum oxide particles with moderate hardness, stable polishing force and no excessive wear on samples, avoiding deep scratches during the polishing process and ensuring the integrity of sample microstructure.
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Stable Water-Based Suspension: Special dispersant formula keeps abrasive particles evenly dispersed for a long time, no layering or precipitation even after standing, easy to use directly without complex pre-treatment, and the dispersion effect remains stable during the whole polishing process.
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Cost-Effective Choice: Lower cost compared with diamond-based polishing agents, suitable for daily batch polishing of conventional metal samples, reducing laboratory consumable costs while meeting standard polishing requirements.
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Mild & Non-Corrosive: Neutral water-based formula, no corrosion to various metal samples, polishing cloths, polishing machine trays and fixtures, safe for long-term daily use, and no damage to soft metal or thin sample surfaces.
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Low Residue & Easy Cleaning: No sticky or stubborn residue left on sample surfaces or polishing cloths after polishing, can be quickly rinsed with clean water or anhydrous ethanol, simplifying post-polishing cleaning work and improving overall efficiency.
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Wide Application Range: Suitable for final polishing of steel, carbon steel, copper alloy, aluminum alloy, iron and other common metal samples, perfectly matching conventional flannel, synthetic fiber and other polishing cloths.
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Complete Particle Size Options: Full range of particle sizes to meet different polishing needs from medium fine polishing to final mirror finishing, adaptable to complete conventional metallographic sample preparation processes.
3. Technical Parameters
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Item
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Specification
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Product Name
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Alumina Polishing Suspension
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Main Abrasive
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High-purity alpha-aluminum oxide (Al₂O₃)
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Particle Size Range
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0.5μm, 1μm, 2.5μm, 5μm, 10μm (optional)
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Formula Type
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Water-based neutral suspension
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pH Value
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Neutral (6.5-7.5)
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Standard Packaging
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250ml, 500ml, 1L sealed plastic bottle
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Appearance
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White or off-white uniform liquid, no agglomeration or precipitation
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Shelf Life
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18 months (sealed storage)
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Compatibility
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All general metallographic polishing cloths and polishing machines
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Application
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Routine metallographic polishing, common metal surface finishing, quality inspection sample preparation
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4. Application Scenarios
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General Metallographic Laboratories: Daily final polishing of conventional metal samples to obtain clear and observable sample surfaces for microstructure analysis and grain size detection.
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Mechanical Processing Quality Inspection: Polishing treatment of batch mechanical parts, hardware and standard components to check surface quality and internal structure defects.
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Educational Scientific Research Institutions: Teaching and experimental sample preparation for material science and metallurgical engineering, meeting basic polishing experiment requirements.
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Manual & Automatic Polishing: Suitable for both manual fine polishing and automatic polishing machine batch operation, with strong process adaptability.
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Common Metal Materials: Perfect for final finishing of steel, carbon steel, cast iron, brass, aluminum, alloy steel and other frequently used metal samples.
