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48 (800) 675-1 1 18 (USA & Canada) (310) 635-2466 (Worldwide) Grinding / Polishing Powder , De-agglomerated FinalPrep is a de-agglomerated, polycrystalline alumina solution excellent for final polishing applications …

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Grinding / Polishing

This non-crystallizing silica

suspension with 9.8 pH

produces an excellent final

polish for a wide variety of

materials, especially non-

ferrous metals, PCBs and ICs.

Colloidal Suspensions

0.05 µm Alumina

Item Unit

180-30015 16 oz. (480 mL)

180-30000 128 oz. (3.8 L)

180-30010 32 oz. (950 mL)

This unique 8.5 pH mixture

combines colloidal silica and

alumina. The addition of

gamma alumina allows

improved mechanical

polishing. It is used to final

polish both ferrous and non-

ferrous metals, metal matrix

composites and various

nonmetallic materials.

Item Unit

180-70015 16 oz. (480 mL)

180-70000 128 oz. (3.8 L)

180-70010 32 oz. (950 mL)

0.05 µm Silica/Alumina

0.04 µm Non-Stick/Rinsable Silica

An excellent final polishing

suspension for most materials,

this unique formula features a

pH of 10 and rinses easily

from samples and equipment,

even after it dries. It is slow

drying, making it an ideal choice

for prolonged polishing

requirements such as those for

EBSD. The pH may be modified

with chemical solutions to

improve microstructural contrast.

Item Unit

180-25015 16 oz. (480 mL)

180-25000 128 oz. (3.8 L)

180-25010 32 oz. (950 mL)

0.03 µm Alumina

Item Unit

180-80015 16 oz. (480 mL)

180-80000 128 oz. (3.8 L)

180-80010 32 oz. (950 mL)

Used for final polishing, colloidal suspensions are mixtures of abrasive particles dispersed throughout a chemically

aggressive liquid carrier. This combination provides a chemical-mechanical polishing action, resulting in deformation-

free surfaces. The modified pH of these suspensions can provide delineation of grain boundaries and other

microstructural features for some sample types.

0.05 µm Non-Crystallizing Silica

Item Unit

180-20015 16 oz. (480 mL)

180-20000 128 oz. (3.8 L)

180-20010 32 oz. (950 mL)

0.02 µm Non-Crystallizing Silica

Item Unit

180-40015 16 oz. (480 mL)

180-40000 128 oz. (3.8 L)

180-40010 32 oz. (950 mL)

A non-crystallizing silica

suspension with 9.8 pH, this

formula produces ultrafine

surface finishes for

demanding SEM/TEM

analysis.

With a pH of 3.5, this acidic

alumina suspension is used to

final polish ferrous metals and

ceramics. Its nonclogging

formula flows easily through

fluid dispensing systems, and it

can be diluted with DI water

up to 3:1.

This acidic alumina suspension

with a pH of 3.5 is used to final

polish ferrous metals and

ceramics. Its nonclogging

formula flows easily through

fluid dispensing systems, and it

can be diluted with DI water

up to 3:1. The 0.03 µm formula

provides finer surface finishes

for demanding applications.

(800) 675-1118 (USA & Canada) (310) 635-2466 (Worldwide)

Grinding / Polishing

Powder, De-agglomerated

FinalPrep is a de-agglomerated,

polycrystalline alumina solution

excellent for final polishing

applications for nearly any

material. With a pH of 9 to 9.5,

the basic chemical element

enhances microstructural

features. It works exceptionally

well for polishing soft, ductile

or precious metals, such as

gold and silver.

FinalPrep Polishing Solution

Item Description

90-187545 0.3 µm, 32 oz. (950 mL)

90-187550 1 µm, 32 oz. (950 mL)

90-187580 0.3 µm, 128 oz. (3.8 L)

90-187125 0.3 µm, 5 lb. (2.3 kg)

90-187020 0.05 µm, 5 lb. (2.3 kg)

90-187090 0.3 µm, 5 lb. (2.3 kg)

90-187055 0.05 µm, 5 lb. (2.3 kg)

90-187585 1 µm, 128 oz. (3.8 L)

90-187505 0.05 µm, 6 oz. (180 mL)

90-187510 0.3 µm, 6 oz. (180 mL)

90-187515 1 µm, 6 oz. (180 mL)

90-187540 0.05 µm, 32 oz. (950 mL)

90-187575 0.05 µm, 128 oz. (3.8 L)

Alumina Polishing

Suspension, De-agglomerated

Item Description

90-187050 0.05 µm, 1 lb. (450 g)

90-187120 0.3 µm, 1 lb. (450 g)

90-187190 1 µm, 1 lb. (450 g)

90-187195 1 µm, 5 lb. (2.3 kg)

Standard alumina powder is recommended where the

benefits of de-agglomerated powders are not required.

Item Description

90-187015 0.05 µm, 1 lb. (450 g)

90-187085 0.3 µm, 1 lb. (450 g)

90-187155 1 µm, 1 lb. (450 g)

90-187160 1 µm, 5 lb. (2.3 kg)

Powder, Standard

Alumina suspensions are de-agglomerated and water

based. Chemically stable, the premixed formulas are

a clean, convenient alternative to powders and are

ideal for the finest finishes.

De-agglomerated alumina powder is specially treated

to reduce the number of agglomerates (groups of

particles in each grade of manufactured alumina),

providing fast, uniform surface finishes.

Allied alumina powders are made to the tightest quality specifications and are used for final polishing of metallographic

specimens. Accurately controlled purity levels and particle size distribution ensure optimum polishing results. Mix with

DI water to produce a liquid slurry. The 0.05 µm particle type/shape is gamma, while 0.3 and 1 µm are alpha.

Item Description

90-187705 0.05 µm, 6 oz. (180 mL)

90-187740 0.05 µm, 32 oz. (950 mL)

90-187775 0.05 µm, 128 oz. (3.8 L)

90-187725 0.05 µm, 16 oz. (480 mL)

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Grinding / Polishing

Adhesive Backing: Each cloth is secured to an

individual, dedicated platen or support disc using

its adhesive backing. Remova l and reapplication

is discouraged because of reduced adhesion.

Adhesive backed polishing cloths are the most

economical choice.

Flexible Ferromagnetic (FM) Backing: Each

cloth features a exible ferromagnetic backing

that adheres to magnetic platens. Multiple discs

can be used with one magnetized platen, reducing

the number of platens needed for each procedure,

machine or lab.

Rigid Ferromagnetic (FM) Backing: Each cloth

features a rigid ferromagnetic backing that adheres

to magnetic platens. Multiple discs can be used

with one magnetized platen, reducing the number

of platens needed for each procedure, machine or

lab. The backing offers corrosion resistance, high

stiffness and a rounded, burr-free edge for safer

handling. Rigid discs are also well suited for

applications that utilize alcohol based suspensions,

slurries and lubricants, where prolonged polishing

times are needed (EBSD), or in high force

applications that generate more heat.

A wide range of polishing cloths is offered for fine grinding or for coarse, intermediate and final polishing of all

materials. They are available either with adhesive backing for standard platens, or with rigid (steel) or flexible (rubber)

ferromagnetic backing for magnetic platens.

Polishing Cloths

Standard Platen

Adhesive Backing

Flexible FM Backing

Rigid FM Backing

Magnetic Platen