Hot Mounting

REF: D121 Categories: ,

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Description

When preparation requirements include less expensive, uniform size and shape, and short processing times, hot mounting (hot compression mounting) is ideal.
Hot mounting takes place under pressure in a mounting press, where the specimen is placed in a cylinder together with the appropriate mounting resin. A temperature of up to 200°C, and a pressure of up to 50kN are then applied during the embedding of the specimen. There are two types of hot mounting processes: thermoplastic resins and thermo-setting resins.
Thermoplastic Resins melt when heated, offering the opportunity of repeating the process with the same specimen if the result is not satisfactory the first time. Thermoplastic resins harden during a chemical reaction with or without pressure. That means high pressure is not necessary during heating and cooling. This process is good when mounting fragile specimens.
Thermo-setting Resins cure at elevated temperatures under pressure. Thermo-setting resins cannot be re-melted after mounting.

Choosing a Hot Mount*

Cat# Resin Color Type Material Shrinkage
1-3
(Best=1)
Hardness
1-3
(Softest=1)
Application/
Specific
Properties.
1210 Black/Gray Thermoplastic Acryl with
iron filler
.. . Electrolytic polishing.
1211 Gray Thermoplastic Acryl with
aluminium filler
.. .. For soft materials.**
Fast mounting also when used as backing.
1212 Clear Thermoplastic Acryl .. .. Transparent mounts. Porous specimens.***
Surface electrical insulator for ConduFast.
1213 Black Thermosetting Epoxy with
mineral filler
. For hard materials.
Excellent edge retention.
1214 Green Thermosetting Bakelite with
wood filler
Routine examination of soft to medium hard materials.
Suitable as backing.
1215 Light Yellow Thermosetting Melamine with mineral and glass filler . For soft to medium hard materials.
Excellent edge retention.
1216 Black Thermosetting Bakelite with
carbon filler
. .. SEM examination.
1217 Black Thermosetting Bakelite with
wood filler
 Routine examination of soft to medium hard materials.
Suitable as backing.
1218 Red Thermosetting Bakelite with
xood filler
Routine examination of soft to medium hard materials.
Suitable as backing.

*30 mm dia. mount with a 45% carbon steel specimen (20 vol%)
**Embedded abrasives can occur in the aluminium filler
***For some materials, using sensitive mode

Cat # Heating
Temp
Heating
Time
Heating
Pressure
(bar)
Cooling
Time
Cooling
Rate
Total
Process
Time
Removal
Rate
1210 180°C 3.5 min 250 1.5 min High 5 min High
1211 180°C 2.5 min 300 1 min High 3.5 min High
1212 180°C 4 min 350 6.5 min Low 10.5 min High
1213 180°C 3.5 min 325 2 min High 5.5 min Low
1214 180°C 3 min 250 2 min Medium 5 min Medium
1215 180°C 3.5 min 250 2 min High 5.5 min High
1216 180°C 3.5 min 250 1.5 min High 5 min High
1217 180°C 3 min 250 2 min Medium 5 min Medium
1218 180°C 3 min 250 2 min Medium 5 min medium

 

Cat # MSDS
1210 MSDS
1212 MSDS
1214 MSDS
1216 MSDS

Additional information

Unit

1 kg, 1 kg

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