ELFIX
APPLICATION
Cements and glues ELFIX are suitable for adhesion, sealing and insulation in different areas. By electrical engineering they are used for example for cementing of reels, for fixation of rotating machines winding heads, for fixation of transformer reels, for repair of damaged lead cable jackets. They are also used for cementing of leaks of different types of metal tanks, including gas tanks, for formation and shaping. In combination with glass cloth they can be used for lamination of damaged automobile bodywork parts of smaller size. In household they serve for different repairs and adhesion of glass, porcelain, wooden and metal objects.
CHARACTERISTICS
Cements and adhesives ELFIX are two-components epoxy materials based on modified epoxy resins with different content of inorganic filling agents. They are cured by room temperature. Acceleration of curing can be achieved by higher temperature. Good electrical and mechanical properties are preserved up to 135°C. They are characterized by excellent adhesion to metal, glass, wood, concrete, ceramics, porcelain and thermosetting materials. Their adhesion to thermoplastics (polyethylene, polypropylene, softened PVC) and to dirty fatty surfaces is insufficient. Advantage of type ELFIX 710 is easy miscibility of components by lower flow (good thixotropic properties).
Tab. 1 Properties by delivery, processing
| Type | ELFIX 108 | ELFIX 410 | ELFIX 510 | ELFIX 710 | |||||
| Component | yellow | black | A | B | yellow | black | yellow | black | |
| Content of filling agent | [%] | 65 | 75 | 0 | 0 | 39 | 40 | 52 | 57 |
| Density | [g/m3] | 1,7 | 1,8 | 1,1 | 1,0 | 1,4 | 1,3 | 1,5 | 1,36 |
| Viscosity by 25 °C | [mPa.s] | 1,3 - 3.108 | 7.103 - 2.104 | 1 - 3.105 | 1 - 3.105 | ||||
| Component mass ratio | 1:1 | 2:1 | 3:2 | 1:1 | |||||
|
Pot life by |
[min] | 50 - 60 25 - 30 10 - 15 |
60 - 80 20 - 30 10 - 15 |
40 - 50 20 - 30 5 - 10 |
50 - 60 15 - 30 10 - 15 |
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| Mixture cure time by 20 °C by 100 °C |
[h] | 12 - 24 1 |
24 - 36 1 - 2 |
12 - 24 1 |
12 - 24 1 |
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| Shelf-life | [month] | min. 12 | min. 12 | min. 12 | min. 12 | ||||
PROCESSING
Components of ELFIXs are mixed together in recommended mass ratio a homogenized properly. Homogenized mixture is applied on defatted and roughened surface of glued materials.
Pot life of mixed blend depends od amount and temperature. Values in minutes stated in tab.1 serve as informative times for processing of homogenized mixture in amount 50 – 500 g. After curing they can be adjusted by abrasion, sawing, turning, eventually by varnishing
Tab. 2 Properties after curing
| ELFIX 108 | ELFIX 410 | ELFIX 510 | ||
| Tension strength | [MPa] | 20 | 36 | 24 |
| Flexural strength | [MPa] | 35 | 58 | 36 |
| Impact strength | [kJ/m] | 4,5 | 7 | 7 |
| Dissipation factor | [%] | 4 | 3,5 | 4 |
| Permittivity by 50 Hz and 23 °C | 4,4 | 4,4 | 4,4 | |
| Volume resistivity | [Ω.m] | 1011 | 1012 | 1013 |
| Electrical strength by 23 °C | [kV/mm] | 12 | 15 | 14 |
Tab. 3
| ELFIX 710 | ||
| Drying into depth | surface appearance | irregular, non tacky |
| bottom appearance | non tacky | |
| Hardness [°R] | max. 10 | |
| Thermoplastic | no changes | |
| Strength in slide by stressing by tension set on specimens cured at least 24 h by 23 °C [MPa] | dural - dural steel - steel |
5,9 7,2 |
SAFETY AT WORK
At work we recommend to use protection gloves. If there was a contact with a skin, also after finished work, it is necessary to wash skin with warm water and cleaner (soap, Solvina, Solsapon, etc.), and then treat with protection cream. In general it is necessary to stick to regulations for a work with epoxy.
PACKING AND STORAGE
ELFIX is delivered in non-returnable, clean, for other products not used packages according to agreement between producer and client.
ELFIX is stored in tightly closed packages in dry ventilated warehouse by max. +25 °C, which complies with STN 65 0201.
