Metallographic samples are mounted to protect edges of fragile materials and to prepare multiple samples of uniform size. Compression mounting is carried out using a mounting press where the sample and the selected mounting media material are inserted in the mounting cylinder. Heat and pressure are simultaneously applied during the mounting cycle of the sample. The two types of mounting media are available: There are Thermoplastic and thermosetting powders. Thermoplastic mounting material remains fluid at elevated molding temperatures and hardens during cooling. This resin can be used for fragile materials. Pressure can be applied when resin is in the molten state. A useful property of the thermoplastic resin is its transparency once cooled. It is much easier to detect the area of interest. Thermosetting mounting material is wood flour filled with phenolic compound that cures at elevated temperature and pressure. The available thermosetting powders are phenolic, diallyl phthalate and epoxies. The phenolic powder in the form of powders or preforms is the more commonly used. The diallyl phthalate is available with mineral or fiberglass filler. The edge retention of the glass filled is better than phenolic powder. The epoxies provide the best edge retention with low shrinkage. The selection of the type of compression mounting powder to use will depend on the abrasion rate of the media and the sample being mounted. Normally, one would choose a mounting medium with an abrasion rate comparable to that of the sample. Compression mounting M O U N T I N G Resin Form Type Molding Temperature Epoxy Powder Thermosetting 356 F/180 C Phenolic Diallyl Phthalate Powder Preforms Thermosetting 350 F/175 C Powder Thermosetting 280 F/138 C Thermoplastic Powder Thermoplastic 341 F/172 C Technotherm 3000 Powder Thermosetting 335 F/170 C Properties Very hard. Edge retention. Low shrinkage. Resistant to chemical attack. General mounting. Rapid. High shrinkage. Fair edge retention. Not resistant to chemical attack. Good edge retention. Resistant to chemical attack. Low shrinkage. Transparent mounts. Slow cure. Not resistant to chemical attack. Adheres to copper. Electrically conductive. Not resistant to chemical attack. 13
PHENOLIC Powders PRODUCT NUMBER COLOR UNIT 199-5 2.3 kg. / 5 lbs. BROWN 200-5 2.3 kg. / 5 lbs. 200-20 RED 9.1 kg. / 20 lbs. 200-55 25 kg. / 55 lbs. 201-5 2.3 kg. / 5 lbs. 201-20 GREEN 9.1 kg. / 20 lbs. 201-55 25 kg. / 55 lbs. 202-5 2.3 kg. / 5 lbs. 202-20 BLACK 9.1 kg. / 20 lbs. 202-55 25 kg. / 55 lbs. PHENOLIC Preforms Diameter: 1.00 inch ( 25 mm ) PRODUCT NUMBER COLOR UNIT 200-1- 200-1-500 RED 500 200-1-0 0 201-1- 201-1-500 GREEN 500 201-1-0 0 202-1- 202-1-500 BLACK 500 202-1-0 0 Diameter: 1.25 inch ( 32 mm ) Diameter: 1.50 inch ( 38 mm ) 200-1.25-200-1.50-200-1.25-500 RED 500 200-1.50-500 RED 500 200-1.25-0 0 200-1.50-0 0 201-1.25-201-1.50-201-1.25-500 GREEN 500 201-1.50-500 GREEN 500 201-1.25-0 0 201-1.50-0 0 202-1.25-202-1.50-202-1.25-500 BLACK 500 202-1.50-500 BLACK 500 202-1.25-0 0 202-1.50-0 0 14
DIALLYL PHTHALATE Powders SHORT GLASS FIBER MINERAL PRODUCT PRODUCT UNIT NUMBER NUMBER UNIT 203-1 0.45 kg. / 1 lb. 204-1 0.45 kg. / 1 lb. 203-5 2.3 kg. / 5lbs. 204-5 2.3 kg. / 5lbs. 203-20 9.1 kg. / 20 lbs. 204-20 9.1 kg. / 20 lbs. EPOXY Powders PRODUCT NUMBER UNIT 211-1 0.45 kg. / 1 lb. 211-5 2.3 kg. / 4lbs. 211-20 9.1 kg. / 20 lbs. 211-50 23 kg. / 50 lbs. THERMOPLASTIC Powders PRODUCT NUMBER UNIT 213-1 0.45 kg. / 1 lb. 213-5 2.3 kg. / 5lbs. 213-20 9.1 kg. / 20 lbs. 213-50 23 kg. / 50 lbs. TECHNOTHERM 3000 PRODUCT NUMBER UNIT 231-L 1.0 kg. / 2.2 lbs. Technotherm 3000 is an electrically conductive resin in the Technotherm line. The graphite-filled resin has an outstanding electronically conductive property. It can be used in SEM without a built charge. This type of mounting medium can also be used for electro polishing. 15
Ambient mounting Ambient mounting technique is a suitable method when a specimen may be sensitive to pressure and heat evolved during compression mounting. The most common systems for cold mounting materials are Epoxies, Acrylics and Polyesters. These systems are all made of two or three components consisting of resins and hardeners. Epoxies are slow curing and have low shrinkage properties, suitable for ceramic and mineral samples. Acrylics have a short polymerization time and give a clear transparent mount. Polyester resin is fast curing and provides an opaque white mount. Name of Product Epoxy Groups Epoxy. Curing time 24 hrs. Exothermic Peak 190 0 F / 90 0 C Technovit 4000 Polyester 8 min. 230 0 F / 110 0 C Technovit 4002 Polyester 15 min. 230 0 F / 110 0 C Technovit 4004 Technovit 4006 Acrylic Acrylic 6 min. 8 min. 212 0 F / 0 C 212 0 F / 0 C Technovit 4071 Acrylic 5 min. 220 0 F / 105 0 C Technovit 5000 Acrylic 8 min. 212 0 F / 0 C Technovit 5071 Acrylic 5 min. 220 0 F / 105 0 C Properties Cures slowly. Transparent. Excellent edge retention. Excellent abrasion resistance. White opaque. Excellent edge retention. Excellent abrasion resistance. White. Excellent edge retention. Excellent abrasion resistance. Good edge retention. Clear yellow. Some shrinkage. Good edge retention. High clear. Reduced the polymerization heat by 10%. Reduced shrinkage. General purpose. Green translucent.. Some shrinkage. Conductive. Good edge retention. Suitable for use in SEM. Some shrinkage. Resistant to chemical attack. General purpose. Green translucent. Some shrinkage. Dissolves in acetone Formula 1 Acrylic 9 min. 70 0 F / 21 0 C Good edge retention. Clear white. Some shrinkage. 16
EPOXY Systems EPOXY System Curing time: 24 hours. Epoxy resins are usually two part system consisting of a resin and a hardener. The nominal mixing Ratio is from 10 parts resin to 1 part hardener. The polymerization is 24 hours. The advantage of using an epoxy system is that it has a low shrinkage, is transparent, a low exothermic temperature, excellent edge retention and is resistant to chemical attack. EPOXY, Kit. 1 Kit. 233-L ACRYLIC Systems Technovit 4004 System A clear yellow two-component system based on methyl methacrylate in the form of powder and liquid. This system is recommended for all samples where the user needs to inspect the sample through the embedding media during the sample preparation. This system can be used in a variety of ways and is suitable for routine work procedures on account of its rapid polymerization time. It can be mixed at ratios 1:1 to 3:1 of powder and liquid. The ratio selected would depend on the respective requirements and flow properties. We recommend a ratio of 2:1 when used at room temperature. Technovit 4004, Large Kit. Powder, 2.0 kg. Liquid, 0 ml. 235-L Technovit 4004, Powder. 2.0 kg. 235-2000R Technovit 4004, Liquid. 0 ml. 235-0H 17
Technovit 4006 System A crystal clear two-component system based on methyl methacrylate in the form of powder and liquid. The integrated adhesion primer allows a very gap reduced bond to the sample. The material is mixed in a ratio of 2 parts powder and 1 part liquid. The material polymerizes in approximately 8 minutes. Technovit 4006 would require the use of pressure vessel system. Technovit 4006, Large Kit. Powder, 2.0 kg. 234-L Liquid, 0 ml. Technovit 4006, Powder. 2.0 kg. 234-2000R Technovit 4006, Liquid. 0 ml. 234-0H Technovit 4071 System The green-transparent two-component system based on methyl methacrylate in the form of powder and liquid. The system is a fast universal embedding system. The advantages of this material are the ease of use and high flexibility regarding mixing ratios, its excellent flow ability and its fast polymerization time, which is less than 5 minutes. Technovit 4071, Large Kit. Powder, 2.0 kg. Liquid, 0 ml. 237-L Technovit 4071, Powder. 2.0 kg. 237-2000R Technovit 4071, Liquid. 0 ml. 237-0H Technovit 5000 System The Technovit 5000 is a conductive polymer based on modified methyl methacrylate. Its conductive elements consist of dendritic copper particles. Due to the good and homogeneous conductivity of the polymer, electric contact can be established in all parts on the material. Technovit 5000, Powder. 1.0 kg. 236-0R Technovit 5000, Liquid. 500 ml. 236-500H 18
Technovit 5071 System Just like the Technovit 4071, the green-transparent twocomponent system is based on methyl methacrylate in the form of powder and liquid. The system is a fast universal embedding system. The advantages of this material are the ease of use and high flexibility regarding mixing ratios, its excellent flow ability and its fast polymerization time, which is less than 5 minutes. The Technovit 5071 can be dissolved with acetone, trichloroethylene and dichloromethane. It can also be used for SEM work. Powder, 1.0 kg. Technovit 5071, Large Kit. 238-L Liquid, 500 ml. Technovit 5071, Powder. 1.0 kg. 238-0R Technovit 5071, Liquid. 500 ml. 238-500H Hazardous product, an extra handling and shipping fee will be charged. Formula 1 System A clear white two-component system based on methyl methacrylate in the form of powder and liquid. This system recommended for all samples where the user need to inspect the sample through the embedding media during the sample preparation. This system can be suitable for routine work procedures on account of its rapid polymerization time. We recommend a ratio of 2:1 when used at room temperature. Formula 1, Large Kit. Powder, 2.3 kg Liquid 1.9 L 206-L Formula 1, Powder. 2.3 kg / 5.0 lbs. 206-R Formula 1, Liquid. 1.9 L/64 oz. 206-H 19
Polyester Systems Technovit 4000 System Technovit 4000 is a fast curing, cold polymerizing, three components system based on modified polyester, and is available in the form of powder, syrup 1 and syrup 2. The mixing ration is 2:2:1 (powder, syrup 1 and syrup 2). The syrups are mixed together first and the powder is mixed last. The Technovit 4000 is distinguished by its low shrinkage when polymerizing and its perfect margin fit. Due to its excellent flow characteristics, Technovit 4000 guarantees that geometrically demanding samples are optimally embedded. PRODUCT DESCRIPTION QUANTITY KIT Powder, 1.5 kg. Technovit 4000, Large Kit. Liquid I, 0 ml. Liquid II, 500 ml. 232-L Technovit 4000, Liquid I. 0 ml. 232-Liquid I Technovit 4000, Liquid II. 500 ml. 232-Liquid II Technovit 4002 System Technovit 4002 is based on modified polyester and consists of a powder and liquid.. This two component polymer has been specifically developed for embedding without any shrinkage or leaving gasps. Technovit 4002 has a curing time of 15 minutes. The system is mixed by weight in a ratio 2:1. By volume, the ratio is 3:1. PRODUCT DESCRIPTION QUANTITY KIT Technovit 4002, Large Kit. Powder, 1.0 kg. Liquid, 500 ml. 228-L Technovit 4002, Powder. Powder, 1.0 kg. 228-0R Technovit 4002, Liquid. 500 ml. 228-500H 20
Castable Mounting Accessories Plastic covers. 212-1 Plastic Covers, 1 " (25 mm). 50 212-1.25 Plastic Cover, 1.25 (32 mm). 50 212-1.5 Plastic Cover, 1.5 " (38 mm). 50 Plastic mounting cups. 214-1 Mounting Cups, 1 " (25 mm). 10 214-1.25 Mounting Cups, 1.25 " (32 mm). 10 214-1.5 Mounting Cups, 1.5 "" (38 mm). 10 Silicon rubber molds. 216-1 Silicone Rubber Molds, 1 " (25 mm). 1 216-1.25 Silicone Rubber Molds, 1.25 " (32 mm). 1 216-1.5 Silicone Rubber Molds, 1.5 " (38 mm). 1 216-2 Silicone Rubber Molds, 2 " (51 mm). 1 21 Spray adhesive 217-17 Spray Adhesive. 17 oz. Hazardous product, an extra handling and shipping fee will be charged. 21
Mold release. 230-19 Spray Mold Release. 19 oz. 230-WAX Release Wax Powder. 12 oz. Hazardous product, an extra handling and shipping fee will be charged. Specimen lacquer spray. 240-12 Specimen Lacquer Spray. 12 oz. Hazardous product, an extra handling and shipping fee will be charged. Stirring sticks, paper cups. 250-1 Stirring Sticks. 500 252-5 Paper Cups, 5 oz. Sample clips. 270-1 Spring Clips, Metal. 270-500 Spring Clips, Metal. 500 270-0 Spring Clips, Metal. 0 270-6- Spring Clips, Metal, 6mm. 270-9- Spring Clips, Metal, 9mm. 272- Spring Clips, Plastic, white. 272-500 Spring Clips, Plastic, white. 500 272-0 Spring Clips, Plastic, white. 0 275-200M Multisample Clips with Support. 200 275-U Plastic Clips with Support. 276-1- Multisample Clips, 1mm. 276-2- Multisample Clips, 2mm. 276-3- Multisample Clips, 3mm. 22
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