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                      1. Home
                      2. Products
                      3. Polishing Slurries
                      4. Alumina Slurries
                      5. Water-Based Polishing

                      Water-Based Polishing Slurries

                      Polishing Slurries

                      Saint-Gobain water-based polishing slurries feature excellent dispersion properties and cut-rate enhanced additives for fast material removal and outstanding surface finishing on a wide range of materials. Our high-performance alumina polishing slurries are safe, easy to use and friendly to the environment.

                       

                      MCA 110L and 110Q Alumina Slurries

                      Specifically designed for polishing plastic lenses, Saint-Gobain MCA 110L is a low viscosity water-based slurry that provides excellent finishes without scratches. In a high volume mass production setting, MCA 110L slurry can polish hundreds of lenses with a yield rate greater than 90%. MCA 110L offers high abrasive loading for longer slurry life In applications where the slurry is re-circulated and reused.

                      Saint-Gobain MCA 110Q is a plastic lens slurry that delivers excellent polishing results at a competitive price. MCA 110Q is designed to be used in a limited re-circulation mode and may have a shorter life cycle than MCA 110L.

                      Applications

                      • Polishing plastic lens material: MR-8, CR, NK, 1.67, 1.61 and polycarbonate lenses
                      • Polishing metals: aluminum, carbides and stainless steel components

                      MCA 768G Alumina Slurry

                      Designed for polishing metallographic parts and metal components, Saint-Gobain MCA 768G is a high viscosity, water-based slurry that provides an exceptional polish on metallographic components with a minimal amount of slurry. A ready-to-use product, MCA 768G may be diluted with water to extend the life of the slurry.

                      Applications

                      • Polishing metallographic components
                      • Lapping metals: stainless steel, aluminum, carbides hardened steel and others

                      MCA 2189D Alumina Slurry

                      Saint-Gobain MCA 2189D water-based slurry offers consistent polishing performance with well-controlled dispersion properties. Perfect for safe lapping and polishing of a wide range of metals, ceramics and crystals, MCA 2189D contains additives to properly disperse alumina particles, providing a very clear and bright polish on plastics and metals.

                      Applications

                      • Lapping of ceramics and plastics
                      • Lapping and polishing metals: 316L, 4120 and other stainless steel components
                      • MCA 110L and 110Q
                      • MCA 768G
                      • MCA 2189D

                      Benefits

                      • Excellent dispersion properties
                      • Works on both free form or conventional polishers
                      • Alumina made to discrete particle sizes to help minimize scratches caused by oversize particles
                      • Provides fast material removal rate and controlled surface finish
                      • Ready-to-use slurry; can be re-circulated
                      • ISO certified for consistent quality
                      • Parts can be cleaned easily with commercially available alkaline cleaners
                      • Ease of use with no hard packing
                      • Knowledgeable application engineers available for technical support

                       

                      Product Characteristics

                      MCA 110L Physical Properties
                      Viscosity  <12 Cps  Melting Point < 0oC
                      Appearance Cloudy and white Water Solubility  Yes
                      pH 3 - 4 Odor None
                      Specific Gravity  1.17 Shelf Life 1 year
                      Suspension Properties No hard packing    

                       

                      MCA 110Q Physical Properties
                      Viscosity  < 10 Cps  Melting Point < 0oC
                      Appearance Cloudy and white  Water Solubility  Yes
                      pH 3 - 4 Odor None
                      Specific Gravity  1.13 Shelf Life Min. 1 year
                      Suspension Properties No hard packing    

                       

                      Available Sizes

                      • Standard sizes: 0.15μm, 1.2μm
                      • Custom sizes available upon request

                      Certification

                      • Product and lot certifications available for each shipment

                      Packaging

                      • 1 gallon wide mouth plastic bottles
                      • 5 gallon pail
                      • 55 gallon drum

                      Concentrations

                      • Medium
                      • Standard

                      Benefits

                      • Excellent dispersion properties
                      • Provides fast material removal rate and controlled surface finish
                      • Ready-to-use slurry
                      • ISO certified for consistent quality
                      • Excellent performance on metallographic parts
                      • Lapped parts can be cleaned easily with commercially available alkaline cleaners
                      • Can be diluted with water depending on desired viscosity (1:1)
                      • Knowledgeable application engineers available for technical support

                       

                      Product Characteristics

                      MCA 768G Physical Properties
                      Viscosity  > 3,000 Cps  Melting Point < 0oC
                      Appearance Cloudy; color varies by abrasive type Water Solubility  Yes
                      pH 9 Odor None
                      Specific Gravity  1.00 – 1.10 Shelf Life Min. 1 year
                      Suspension Properties Full suspension    

                      Available Sizes

                      • Standard sizes ranging from 0.10 to 50μm
                      • Custom sizes available upon request

                      Certification

                      • Product and lot certifications available for each shipment

                      Packaging

                      • 1 gallon wide mouth plastic bottles
                      • 5 gallon pail
                      • 55 gallon drum

                      Concentrations

                      • Medium

                      Benefits

                      • Excellent dispersion properties
                      • Provides fast material removal rate and controlled surface finish
                      • No staining parts
                      • ISO certified for consistent quality
                      • Lapped parts can be cleaned easily with commercially available alkaline cleaners
                      • Knowledgeable application engineers available for technical support

                       

                      Product Characteristics

                      MCA 2189D Physical Properties
                      Viscosity  50 Cps  Melting Point < -10oC
                      Appearance Cloudy; color varies by abrasive type Water Solubility % 99+
                      pH 9 Odor Mild lemon fragrance
                      Specific Gravity  1.05 – 1.15 Shelf Life 1 year
                      Suspension Properties Semi suspension    

                      Available Sizes

                      • Standard sizes ranging from 0.10 to 50μm
                      • Custom sizes available upon request

                      Certification

                      • Product and lot certifications available for each shipment

                      Packaging

                      • 1 gallon wide mouth plastic bottles
                      • 5 gallon pail
                      • 55 gallon drum

                      Concentrations

                      • Medium
                      • Standard
                      • Heavy
                      • Special concentrations available upon request

                       Contact us

                      RELATED APPLICATIONS

                      • Particles, Slurries & Specialty Chemicals for Industrial Polishing | Saint-Gobain

                        Industrial Polishing

                      Related Resources

                      Related Products

                      Water Based Lapping
                      Saint-Gobain Surface Conditioning is a business of Saint-Gobain Ceramic Materials

                       

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