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Electron Microscopy Sciences

Material Science and Metrology

arrow13Polishing Powders, Paste, and Suspensions

msdsalumina powder Al2O3arrow12Alumina Powder:

EMS's Alumina Powders are accurately controlled for all specs and particle size distribution, assuring you the best polishing results. The following micron sizes are available: 0.05, 0.3, and 1.0.

Typical applications are:

  • Precision Optics
  • Metallographic Sections
  • Electro-Optical Crystals
  • Silicone Wafers
  • Ferrite Components
  • Gem Stones
  • Acrylic lenses

Type DX Alumina Powder is specially treated to reduce the number of agglomerates (group of particles in each grade of manufactured alumina). The result is fast polishing and improved quality of the finished products.

Type N Alumina Powder is recommended when these improvements are not necessary.

50360-01 Type N, Gamma Alumina Powder, 0.05µm 1 lb 56.00 Add to Cart
50360-05 Type N, Alpha Alumina Powder, 0.3µm 1 lb 56.00 Add to Cart
50360-10 Type N, Alpha Alumina Powder, 1µm 1 lb 56.00 Add to Cart
50361-01 Type DX, Gamma Alumina Powder, 0.05µm 1 lb 56.00 Add to Cart
50361-05 Type DX, Alpha Alumina Powder, 0.3µm 1 lb 56.00 Add to Cart
50361-10 Type DX, Alpha Alumina Powder, 1µm 1 lb 56.00 Add to Cart

arrow12Diamond Powder

Made from synthetic diamond.

Cat. # Description Qty Price  
50375-01 Diamond Powder, 0.1µm 10 carats 40.00 Add to Cart
50375-02 Diamond Powder, 0.25µm 10 carats 40.00 Add to Cart
50375-05 Diamond Powder, 0.5µm 10 carats 40.00 Add to Cart
50375-1 Diamond Powder, 1µm 10 carats 40.00 Add to Cart
50375-3 Diamond Powder, 3µm 10 carats 40.00 Add to Cart
50375-6 Diamond Powder, 6µm 10 carats 40.00 Add to Cart
50375-9 Diamond Powder, 9µm 10 carats 40.00 Add to Cart
50375-15 Diamond Powder, 15µm 10 carats 40.00 Add to Cart
50375-30 Diamond Powder, 30µm 10 carats 40.00 Add toCart
50375-45 Diamond Powder, 45µm 10 carats 40.00 Add toCart

msdsarrow12Silcone Carbide Powder SiC

Dark gray 98% SiC. Hardness, Moh’s scale 9.0; Knoop Scale 2500.
Crystallography: hexagonal – alpha and beta phase.

Cat. # Description Qty Price  
50260-8 Silicon Carbide Powder, 8µm 1lb 26.00 Add to Cart
50260-10 Silicon Carbide Powder, 10µm 1lb 24.00 Add to Cart
50260-14 Silicon Carbide Powder, 14µm 1lb 24.00 Add to Cart
50260-18 Silicon Carbide Powder, 18µm 1lb 24.00 Add to Cart
50260-23 Silicon Carbide Powder, 23µm 1lb 17.00 Add to Cart
50260-35 Silicon Carbide Powder, 35µm 1lb 17.00 Add to Cart
50260-42 Silicon Carbide Powder, 42µm 1lb 17.00 Add toCart
50260-50 Silicon Carbide Powder, 50µm 1lb 16.00 Add toCart

msdsboron carbide powderarrow12Boron Carbide Powder (B4C)

Boron Carbide is one of the hardest materials known, ranking third behind diamond and cubic boron nitride.

  • Extreme hardness, (Knoop 100g: 2900-3580 kg/mm2)
  • Good chemical resistance
  • Good nuclear properties
  • Low density (2.52 g/cm2)

Due to the hardness, boron carbide powder is used as an abrasive in polishing and lapping applications.

Cat. # Description Qty Price  
50510-08 Boron Carbide Powder, 8µm 1 lb 50.00 Add to Cart
50510-10 Boron Carbide Powder, 10µm 1 lb 50.00 Add to Cart
50510-14 Boron Carbide Powder, 14µm 1 lb 50.00 Add to Cart
50510-18 Boron Carbide Powder, 18µm 1 lb 48.00 Add to Cart
50510-23 Boron Carbide Powder, 23µm 1 lb 48.00 Add to Cart
50510-35 Boron Carbide Powder, 35µm 1 lb 46.00 Add to Cart
50510-42 Boron Carbide Powder, 42µm 1 lb 46.00 Add toCart
50510-50 Boron Carbide Powder, 50µm 1 lb 44.00 Add toCart

msdsarrow12Aluminum Oxide Powder - Al2O3

These are abrasive powders that are prepared from aluminum oxide, offering excellent coarse and intermediate polishing, with fast results.

50362-03 Aluminum Oxide Powder, 3.0µm 1 lb 18.00 Add to Cart
50362-05 Aluminum Oxide Powder, 5.0µm 1 lb 18.00 Add to Cart
50362-09 Aluminum Oxide Powder, 9.0µm 1 lb 18.00 Add to Cart
50362-15 Aluminum Oxide Powder, 15.0µm 1 lb 18.00 Add to Cart

msdsalumina slurryarrow12Alumina Slurry

These suspensions are water-based and contain no additives, which may interfere with polishing or contaminate the sample. All slurries are very stable and alumina is evenly dispersed. Excellent for the finest finishes.

50368-10 Alumina Slurry, 0.05µm 6 oz. 24.00 Add to Cart
50368-20 Alumina Slurry, 0.3µm 6 oz. 24.00 Add to Cart
50368-30 Alumina Slurry, 1µm 6 oz. 24.00 Add to Cart

msdscolloidal aluminaarrow12Colloidal Alumina

As an acidic dispersion, Colloidal Alumina is a chemical-mechanical action, that provides superior surfaces on germanium, silicon, gallium arsenide, zinc sulphide, fluorides, sapphire, ferrite's and silicon carbide. Low scatter finishes can be obtained on pure metals such as nickel, tungsten, copper, beryllium, steel and aluminum. Epoxy resin materials and plastics have also been successfully polished with this versatile colloidal dispersion.

Properties: pH: 3 - 3.5; solids: 20%; viscosity: thixotropic.

Application: Depending upon the application, Colloidal Alumina can be used full strength or diluted. Dilution up to 1:1 or higher with deionized water is recommended. Polyurethane and short nap cloths are recommended. However, most commonly used laps and pads are compatible with colloidal alumina.

50365-05 Colloidal Alumina 1 pt 46.00 Add to Cart
50365-06 Colloidal Alumina  1 gal 260.00 Add to Cart

msdsarrow12Colloidal Silica

This non-crystallizing Colloidal Silica is made to be user friendly. It eliminates the problems that are caused by drying or freezing that are associated with other colloidal silica products which are used for chemical/mechanical polishing.

Colloidal silica is a first choice silica dispersion for optimizing polishing results such as silicon, fused quartz, fused silica, lithium niobate, YAZ, GGG, alexandrite, sapphire and many others.

Properties: pH: 9.6 - 9.9; Particle size : 20-60 nm; Solids: 40%; Viscosity: 20-40 cp.

Application: Colloidal silica can be used full strength or diluted. Dilution to 1:1 or higher with deionized water is recommended. Polyurethane and short nap cloths can be used.

50366-05 Colloidal Silica 1 pt 25.00 Add to Cart
50366-06 Colloidal Silica 1 gal 125.00 Add to Cart

arrow12Diamond Compounds

diamond compoundsWith great experience, technical knowledge, and modern facilities, we are able to manufacture superior diamond compounds and provide reliable service to every one.

Glennel® diamond products are specially formulated to help you prepare surfaces that are usually difficult to polish and require precision finish. To satisfy today's demand the diamond compounds must be complex with near perfect tolerances as is ours.

Types of Diamond:

We use three basic types of diamonds: natural monocrystalline, synthetic monocrystalline, and
synthetic polycrystalline. Typical sizes rangiefrom 1/10µm to 60µm


MONOCRYSTALLINE diamonds provide a cost effective means for good stock removal and finish. The natural form has a blocky shape with a smooth surface. Synthetic diamonds have a slightly irregular shape with multiple edges. Precision grading and high quality standards guarantee consistent shape and size. This consistency and unique shape make this a popular diamond for many production-lapping applications.

POLYCRYSTALLINE diamonds are recommended for microscopy, materialography, and where surface finish is extremely critical. We use the highest quality polycrystalline diamonds, Dupont Mypolex(r). It has a uniform blocky shape with a rough surface. Precision microfractures built into each particle provide uniform and consistent fracturing under stress.

arrow121. Diamond Paste

Glennel® UB Formulation is excellent for most applications where a diamond compound is desired. It is soluble in either water or oil and works with all common extenders. UB compound is recommended for polishing laboratory specimens and lapping of materials such as carbide, ceramic, sapphire, composites, ferrite, and silicon.

Glennel® UC Formulation is an oil soluble compound recommended for finishing wire dies, molds, cold heading dies, and general shop applications where diamond compounds are required. UC provides fast cutting action and superior finish. Meant to be used with our Formula C extender for maximum efficiency.

Glennel® OS Formulation is an oil soluble compound designed for lapping large areas of hard material. Use alone or with an extender it cleans up easily, provides aggressive stock removal and an outstanding finish.

Recommendations For Use
Micron Size
Size Range
Mesh Equiv.
Finest finishes for work of the
highest precision. Used for optical,
metallographic, ferrite, laser rod,
and semiconductor finishing.
0.1 0-0.2 240,000
0.25 0-0.5 100,000
0.5 0-1 60,000
1 0-2 14,000
2 1-3 11,000
Final finish for most applications: molds, dies, general flat lapping. Preparatory lapping. Intermediate finish to achieve dimensions. 3 2-4 8,000
6 4-8 3,000
9 8-12 1,800
15 12-22 1,200
30 22-36 600
Fast stock removal and roughing on hardest materials 45 36-54 325
60 54-80 230/235
Mesh - 170/230


All Diamond Pastes are available as a standard in 5 g size dispensing tube UB or UC and UBS or UCS. 18 g sizes are available upon request.

Formulation Type:

Monocrystalline   Polycrystalline
UB........ Water & Oil .............UBS
UC........ Oil ............UCS
OS........ Oil ............OSS
msdsarrow10UB - Water/Oil Soluble (Monocrystalline)
Catalog Paste Diamond Compound, Size
50370-10 0.1 micron, UB 5 gm 21.00 Add to Cart
50370-20 0.25 micron, UB 5 gm 21.00 Add to Cart
50370-30 0.5 micron, UB 5 gm 21.00 Add to Cart
50370-40 1.0 micron, UB 5 gm 10.00 Add to Cart
50370-50 3.0 micron, UB 5 gm 20.00 Add to Cart
50370-60 6.0 micron, UB 5 gm 25.00 Add to Cart
50370-70 9.0 micron, UB 5 gm 25.00 Add to Cart
50370-80 15.0 micron, UB 5 gm 32.00 Add to Cart
msdsarrow10UC - Oil Soluble (Monocrystalline)
50371-10 0.1 micron, UC 5 gm 13.00 Add to Cart
50371-20 0.25 micron, UC 5 gm 22.00 Add to Cart
50371-30 0.5 micron, UC 5 gm 22.00 Add to Cart
50371-40 1.0 micron, UC 5 gm 13.00 Add to Cart
50371-50 3.0 micron, UC 5 gm 22.00 Add to Cart
50371-60 6.0 micron, UC 5 gm 22.00 Add to Cart
50371-70 9.0 micron, UC 5 gm 22.00 Add to Cart
50371-80 15.0 micron, UC 5 gm 28.00 Add to Cart
msdsarrow10UBS - Water/Oil Soluble (Polycrystalline)
50370-11 0.1 micron, UBS 5 gm 28.00 Add to Cart
50370-21 0.25 micron, UBS 5 gm 25.00 Add to Cart
50370-31 0.5 micron, UBS 5 gm 26.00 Add to Cart
50370-41 1.0 micron, UBS 5 gm 25.00 Add to Cart
50370-51 3.0 micron, UBS 5 gm 28.00 Add to Cart
50370-61 6.0 micron, UBS 5 gm 28.00 Add to Cart
50370-71 9.0 micron, UBS 5 gm 28.00 Add to Cart
50370-81 15.0 micron, UBS 5 gm 28.00 Add to Cart
50370-91 30.0 micron, UBS 5 gm 30.00 Add to Cart
msdsarrow10UCS - Oil Soluble (Polycrystalline)

50371-11 Please see 50370.

msdsmsdsDiamond Suspensionarrow122. Diamond Suspension

Glennel® Diamond Suspension assures a consistent, uniform viscosity and dispersion of diamond without any shaking or stirring. The proprietary formulation guarantees that the particles will stay suspended indefinitely. It is ideal for automatic polishers and applications that require changing operators.

A versatile, water based suspension designed for most production applications. This special formulation provides:

  • Excellent lubrication
  • Uniform fast lapping action
  • Maximum cutting action
  • Compatible with all common extenders.


All Diamond Suspensions are packed in 400g bottles and have Medium Concentration prepared with Premium Polycrystalline Diamond in either Propylene Glycol (Oil based) or Water based formulas.

Diamond Size Oil Based   Water Based  
0.1µm 50372-10 138.00 Add to Cart 50372-11 72.00 Add to Cart
0.25µm 50372-20 56.00 Add to Cart 50372-21 56.00 Add to Cart
0.5µm 50372-30 56.00 Add to Cart 50372-31 56.00 Add to Cart
1.0µm 50372-40 55.00 Add to Cart 50372-41 55.00 Add to Cart
3.0µm 50372-60 66.00 Add to Cart 50372-61 71.00 Add to Cart
6.0µm 50372-70 79.00 Add to Cart 50372-71 80.00 Add to Cart
9.0µm 50372-80 102.00 Add to Cart 50372-81 102.00 Add to Cart
15.0µm 50372-90 106.00 Add to Cart 50372-91 106.00 Add to Cart

msdsarrow123. Diamond Spray

Glennel® Diamond Aerosol Spray provides unsurpassed cutting action and finish. The inverted nozzle provides safe and easy access for difficult to reach areas while ensuring that every diamond particle is used. Special formulations allow the carrier to evaporate quickly, leaving a very uniform dispersion of diamond. This is especially useful when an operation requires a dry polishing cloth.


Our Diamond Spray is available in 5 oz cans.

Diamond Size
Microns Mesh
0.25µm 100,000 50374-06 49.00 Add to Cart
0.5µm 60,000 50374-10 50.00 Add to Cart
1.0µm 14,000 50374-11 49.00 Add to Cart
3.0µm 8,000 50374-16 49.00 Add to Cart
6.0µm 3,000 50374-21 56.00 Add to Cart
9.0µm 1,800 50374-26 56.00 Add to Cart
15.0µm 1,200 50374-31 60.00 Add to Cart

arrow124. Lapping Solutions

Glenoil Lube - Lapping vehicle is the ideal lap oil for all Glennel® UB Compounds and Diamond Sprays. It assures continued separation of diamond particles and constant removal of lap debris.

Formula C is made especially for oil soluble compounds, such as Glennel® UC and US listed above. This penetrating formula is specially designed to enhance cutting action and leave a superior finish.

Formula B is a universal lapping vehicle, compatible with both water and oil soluble compounds. It is ideal in an environment where materials change constantly. This very versatile formulation allows you to change materials and compounds and still provides excellent lubricity and cutting action.

50376-01 Glenoil Lube msds 16 oz 10.00 Add to Cart
50376-05 Formula C Lube msds 16 oz 10.00 Add to Cart
50376-10 Formula B Lube msds 16 oz 10.00 Add to Cart

Sample Grinding and Sectioning arrow13arrow13