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Description
Cold mounting or embedding is when a resin is mixed with a hardener (or accelerator) to provide the mounting compound, and then the polymerization process take place to form the block. In some cases, this process gives-off heat. However this heat generation can be controlled by the use of ice or cool air blow setting. Cold mounting compounds are preferred for specimens that are sensitive to the heat or pressure, which applies during the hot mounting process. There are three types of cold mounting:
1. Epoxy Systems – Epoxies have the lowest shrinkage of all cold mounting resins. The curing time is relatively long, but the adhesion to most materials is excellent. They are also used for vacuum impregnation. The hardened epoxy is duroplastic and not affected by moderate heat or chemicals.
2. Acrylic System – Acrylics are easy to use resins with short curing times and negligible shrinkage. They consist of self-polymerizing components that harden with the addition of catalyst. Hardened acrylic is thermoplastic and resistant to most chemicals.
3. Polyester Systems – Polyester belongs to the catalyzed system, like acrylics. Curing times are relatively short and the hardened specimen is duroplastic.
Choosing a Cold Mount*
| Cat# | Resin | Color | Curing Time | Hardness | Shrinkage 1-3 (Best=1) |
Application |
| 1232 | EpoFix |
Clear, Transparent Refractive index: ND = 1.578 |
Approx 12 hours | 78 Shore D | . | Vacuum impregnation Porous samples Mineralogical samples |
| 1233 |  EMSFix |
Clear, Transparent Refractive index: ND = 1.561 |
1½ hr in oven at 75°C/167°F | 85 Shore D | . | Vacuum impregnation Porous samples Mineralogical samples |
| 1234 |  UniMount |
Clear, Transparent Refractive index: ND = 1.573 |
8 hours | 84 Shore D | . | Vacuum impregnation Porous samples Mineralogical samples |
| 1235 |  TransFix |
Colorless, clear (extremely clear when cured under pressure). Otherwise semi-transparent. | 20 min. | 83 Shore D | … | Vias Microvias |
| 1245 | Epoxy-Dye | Fluorescent dye for use in microscopy to make cracks and pores visible. | – | – | – | For use with EpoFix and Unimount |
| 1256 |  AcryMount |
Dull yellowish, partly transparent | 10 min | 82 Shore D | …. | Routine examination |
| 1257 |  GeoFix |
Colorless, clear (extremely clear when cured under pressure). | 20 min | 85 Shore D | … | Extraordinarily clear mounts |
| 1258 |  MatFix |
Light yellow | 30 min | 85 Shore D | . | Fast curing No shrinkage |
| 1259 |  LiteFix |
Off-white | 20 min | 84 Shore D | .. | Edge Retention Planeness |
| 1265 |  Acrylic-Dye |
Blue, Red & Yellow | – | – | – | Dyes for easy identification of your acrylic mounts |
| 1270 |  Poly-Mount |
Transparent Polyester Low viscosity |
45 min | – | …. | Serial mounting of specimens not sensitive to heat |
| 1276 |  Poly-AcryMount |
White Polyester/Acrylic |
18-25 min | – | . | Edge Retention Planeness |
*30 mm dia. mount with a 45% carbon steel specimen (20 vol%)
| Cat # | Mixing Ratio Weight |
Ratio Volume |
Mixing Time |
Potlife | Color | Can be colored with EpoDye | Can be colored with AcryDye | Peak Temp |
| 1232 | Resin: 25 parts Hardener: 3 parts |
Resin: 15 parts Hardener: 2 parts |
2 min | 30 min | Clear, Transparent Refractive index: ND = 1.578 |
X | 40°C
104°F |
|
| 1233 | Resin: 25 parts Hardener: 7 parts |
Resin: 31 parts Hardener: 10 parts |
5 min | >60 min |
Clear, Transparent Refractive index: ND = 1.561 |
X | 170°C
338°F |
|
| 1234 | Resin: 7 parts Curing Agent: 1 part |
Resin: 26 parts Curing Agent: 5 parts |
3 min | 60 min | Clear, Transparent Refractive index: ND = 1.573 |
X | 60°C
140°F |
|
| 1235 | Liquid: 11 parts Powder: 9 parts |
Liquid: 1 part Powder: 2 parts |
30 sec | 2 min | Colorless, clear (extremely clear when cured under pressure). Otherwise semi-transparent | X | X | 115°C
239°F |
| 1245 | – | – | – | – | Fluorescent dye for use in microscopy to make cracks and pores visible | – | – | – |
| 1256 | Liquid: 10 parts Powder: 15 parts |
Liquid: 1 part Powder: 2 parts |
30 sec | 3 min | Dull yellowish, partly transparent | – | X | 100°C
212°F |
| 1257 | Liquid: 6 parts Powder: 10 parts |
Liquid: 2 parts Powder: 5 parts |
1½ min |
1½ min |
Colorless, clear (extremely clear when cured under pressure) | X | X | 90°C
194°F |
| 1258 | Liquid I: 8 parts Liquid II: 4 parts Powder: 14 parts |
Liquid I: 10 parts Liquid II: 5 parts Powder: 15 parts |
1½ min |
4 min |
Light yellow | – | X | 138°C
280°F |
| 1259 | Liquid: 10 parts Powder: 20 parts |
Liquid: 1 part Powder: 2 parts |
45 sec | 1½ min |
Off-white | – | X | 75°C
167°F |
| 1265 | – | – | – | – | Blue, Red & Yellow | – | – | – |
| 1270 | – | – | – | – | Transparent Polyester Low viscosity |
– | – | – |
| 1276 | – | – | – | – | White Polyester/Acrylic |
– | – | 114°C |
| Cat # | Technical Data Sheet | MSDS |
| 1232 | TDS_Epofix Cold-Setting Embedding Resin | MSDS_1232-A |
| MSDS_1232-B | ||
| 1233 | TDS_EMSFix Kit | MSDS_1233-A |
| MSDS_1233-B | ||
| 1234 | TDS_Unimount Epoxy Kit | MSDS_1234-A |
| MSDS_1234-B | ||
| 1245 | MSDS_1245 | |
| 1256 | TDS_AcryMount Embedding Resin Instructions | MSDS_1256-H |
| MSDS_1256-R | ||
| 1257 | TDS_Geo-Fix Cold Mounting Embedding Kit | MSDS_1257-H |
| MSDS_1257-R | ||
| 1258 | MSDS_1258-H1 | |
| MSDS_1258-H2 | ||
| MSDS_1258-R | ||
| 1265 | TDS_Acrylic Dye Set | MSDS_1265 |
| 1270 | TDS_Poly Mount | MSDS_1270-A |
| MSDS_1270-B | ||
| 1276 | TDS_Poly-Acrymount Specimen Mounting Kit | MSDS_1276-A1 |
| MSDS_1276-A2 | ||
| MSDS_1276-B |
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