- BrandАО НАВОИЙАЗОТ
- Country of manufactureUzbekistan
| Carboamidoformaldehyde pitches were widely used by production of plywood, pasting of details of furniture, joiner's and construction products, for production of wafer cores and forms, strengthening of soil, and also for production of press materials, layered
plastics, polyfoams, glues, coverings, processing of paper, fabric. |
Also, KFZh is applied as glue to fixing of abrasive grains on the basis of a grinding skin. Shlifshkurka on KFZh is applied to manual and machine grinding of wood, and also to processing of other materials with average loadings without use of cooling liquid
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Appearance |
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Uniform suspension from white till light yellow color without foreign inclusions |
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Technical characteristics |
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№ |
Name |
Norm |
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1. |
Mass fraction of the dry rest, % |
65-69 67-69 (l) |
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2. |
Mass fraction of free formaldehyde, % no more |
0,9 |
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3. |
Conditional viscosity at (20,0+ 15-35 (F) /-0,5) hail. With on the viscometer VZ-246 with a nozzle of 6 mm, with |
35-50 (m) 10-20 (l) |
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4. |
Concentration of hydrogen ions, rn |
7,5-8,7 |
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5. |
Gelatinization time at: 100 hail. With, with (19-21) hail. With, h not less |
40-65 10 |
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6. |
Miscibility of pitch with water at (19-21) hails. With in the ratio on volume 1:2 |
full |
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7. |
Strength at a skalyvaniye on a glue layer of plywood after a soaking of samples in water during 24 h, MPa, not less |
1,5 |
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Notes: 1. In pitch of the KF-Zh brand intended for cold pasting of wood materials and pasting in the field of currents of high frequency, the mass fraction of free formaldehyde has to be (0,5-0,9) %. 2. At storage of pitch of the KF-Zh brand increase in normuslovny viscosity on the VZ-246 viscometer with a nozzle with a diameter of 6 mm not more than to 100 with (F), 155 with (M), 75 with is allowed (L) |
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Packing and storage |
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Carbamide and formaldehyde pitch of the KF-Zh brand in shop is stored in the collection, in a shirt of collections zakholozhenny water with a temperature of 6 a hail is pumped. With, the collection is protected from influence of direct sunshine. Temperature of storage of pitch (5-20) hail. With Pitch to the consumer goes in barrels, tanks, flasks. Tanks can be equipped with the heatexchange device or a heat-insulating covering |
