The term cold mounting covers all mounting methods that do not require the use of a hot mounting press. To create a optimal cold-mounted specimen, consider the following:
QPREP cold mounting resins are available on methyl methacrylate or MMA-free and epoxy based. Acrylate or MMA-free based cold mounting resins are characterized by good removal rate, short curing times and good chemical resistance. Epoxy resins are used for mounting of porous and temperaturesensitive materials. Furthermore, they are used when the lowest possible gap formation is intended.
QPREP KEM 15 PLUS is a universally applicable two-component cold mounting material based on a modified polyester resin. Due to its very low shrinkage, it is particularly suitable for boundary layer investigations.
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QPREP KEM 20 is a universally applicable two-component cold mounting material based on a methyl methacrylate resin compound. Transparent mountings can be realized when curing under overpressure.
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QPREP KEM 30 is a universal two-component cold mounting resin based on a methyl methacrylate resin compound. It is a fast curing resin, which is particularly suitable for high sample throughput.
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QPREP KEM 35 is a universally applicable two-component cold mounting material based on a methyl methacrylate resin compound. Due to its very low shrinkage and hardness, it is particularly suitable for edge examination on materials with higher hardness.
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QPREP QPOX 90 is a transparent two-component cold mounting material based on an epoxy resin. Due to its good flowability, it is well suited for the pre-potting of specimens with filigree and complex geometries.
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QPREP QPOX 92 is a highly transparent two-component cold mounting material on epoxy resin. It is very well suited for specimens with filigree and complex geometries. In addition, QPOX 92 is particularly recommended for mounting materials with temperature sensitive surfaces and for target preparations.
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QPREP Qpox 93 is a low-viscosity and crystal-clear two-component cold mounting agent based on epoxy resin. Qpox 93 enables absolutely transparent and gap-free mountings and, with a curing time of about 8-12 hours, is also ideal for the preparation of routine samples. Free of solvents, DETA and CMR substances, it enables safe handling in everyday use, for example in manual target preparations.
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In this video, you’ll discover the benefits Qpox 93 has to offer!
Qpox 94 is a low-viscosity and transparent two-component epoxy-based cold mounting resin, ideal for samples with delicate and complex geometries. It is particularly suitable for sensitive and porous surfaces as well as target preparations. With a curing time of about 9 hours Qpox 94 allows transparent and gap-free mounting and preparation on the same day.
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QPREP Qpox 96 Rapid is a fast-curing two-component epoxy resin from QATM. With a curing time of less than 4 hours, it allows sample preparation to be carried out within one day. Due to a maximum curing temperature of less than 120 °C, Qpox 96 Rapid is also suitable for heat-sensitive materials, such as assembled printed circuit boards. Due to its good hardness, low viscosity, good adhesion and transparency, it is ideal for routine target preparation of all types of samples. Designed with a focus on the EHS profile, it is free of DETA and CMR substances and enables safe and efficient materialographic preparation.
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When cold mounting porous specimens it is purposeful to infiltrate them under vacuum, with a low viscosity mounting medium (epoxy resins). The QPREP infiltration device offers a solution for mounting under vacuum.
For transparent cold mounting using methyl methacrylate, these must be cured in a pressure device under positive pressure (2 - 2.5 bar). This increases the boiling point of the mounting material and suppresses the formation of gas bubbles during polymerization. The QPREP Pressure unit is best suited for this purpose.
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Choosing a cold mounting mould of the correct size and suitable material the result of the mounting can be optimized. QPREP offers a variety of reusable and chemically resistant moulds of different sizes and materials for this purpose.
Qmould Grey, without chamfer
Qmould Clear, without chamfer
Qmould White, without chamfer
PTFE, beveled edge, round
Silicone rubber, round or rectangular, beveled edge
Polypropylene, without chamfer
Polyethylene, round, without chamfer
Mounting 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.
If you would like to learn more about the different procedures, please visit our extensive Knowledge Base.
Our Knowledge Base article about mounting includes:
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!
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