Suspensions for Fine Polishing

QPREP fine polishing suspensions are the polishing products of choice for the most demanding polishing requirements. In this process, a chemical-mechanical polishing is performed using colloidal silicon dioxide or aluminum oxide. A colloidal suspension is a heterogeneous mixture, in which fine particles are evenly distributed in a liquid, and do not settle. Fine polishing suspensions with colloidal silicon dioxide utilize this stability for effective and gentle polishing, which improves surface quality and consistently delivers high-quality results.

Product Advantages

Highest surface qualities
Removal of all deformation with vibration polishing
Polishing/removing scratches in the range of 0.1μm to 0.05μm

Recommended applications

Detailed microstructure analysis
Very soft or very hard and ductile materials

Fine polishing suspensions

Fine polishing suspensions (AI₂O₃₎
EPOSAL

does not crystallize
for ferrous materials, polymers, composites, PCB, rocks and minerals
available grain sizes: 0,06 µm

EPOSIL F / EPOSIL Non dry / EPOSIL M
Colloidal silica

for polishing, also mixable with diluted etchant
for ferrous and non-ferrous materials, ceramics
especially for soft materials like Al,Cu,Ti and solder joints
available grain sizes: EPOSIL F: 0,1 µm / EPOSIL Non Dry: 0,05 µm / EPOSIL M: 0,06 µm

EPOSIL M11
Colloidal silica

for titanium, nickel, tin and its alloys
available grain sizes: 0,06 µm

Water-free fine polishing suspension
ETOSIL E

e.g. for magnesium, zinc
available grain sizes: 0,06 µm

Order Data

Alumina suspension, calcinated

Aqueous concentrate, to dilute, 3-5 part of dest. water

available grain sizes: 0,3 / 0,6 / 1 µm

Order Data

Perfect polishing - Instruments by QATM

Polishing is more reliable, safer and more efficient when performed with the right equipment: Knowledge, exercising care and the right choice of consumables and equipment are crucial.

Discover our polisher

Knowledge Base

If you would like to learn more about the different procedures, please visit our extensive Knowledge Base.

Our Knowledge Base article about polishing includes:

Metallographic polishing in 3 steps
Metallographic diamond polishing
Metallographic oxide polishing
Tips and tricks for metallographic grinding and polishing

Knowledge Base

Ultrafine polishing suspension machines for metallographic samples, and contact

QATM offers a wide range of innovative machines for metallographic sample preparation. Accompanying QATM accessories and consumables are thoroughly tested and selected for perfect interaction with our machines. Contact us for a consultation, quote or to talk to one of our dedicated application specialists!