Specifications:
No | Name of the indicator | Requirements TNPA |
one | Iodometric lacquer color scale mg J 2 / 100cm 3 , which is darker than | 300 |
2 | The appearance of the film | It should be followed by a transparent film, a film, a film, a film, a drift, a craters, a wrinkles and inclusions. |
3 | Mass fraction of nonvolatile substances,% | 45 – 52 |
four | Viscometer type VZ – 246 (or VZ – 4) at a temperature of (20.0 ± 0.5) ° C, s | 40 – 60 |
five | Drying time, h, not more than degree 1 at (20 ± 2) ° C to degree 3 at a temperature of (20 ± 2) ° Cto degree 3 at a temperature of (90 – 95) ° C |
eight 723 |
6 | Acid number, mg KOH / g (in terms of base), not more than | thirty |
7 | Film hardness by pendulum device M – 3 at a temperature of (20 ± 1) ° C, conventional units, not less | 0.25 |
eight | Flexural elasticity of the film, mm, not more | one |
9 | Film resistance to static exposure to water at a temperature of (20 ± 2) ° С, h, not less | 24 |
ten | Film resistance to the static effect of a gasoline-toluene mixture at a temperature of (20 ± 2) ° С, min, not less | 15 |
It is allowed to increase the viscosity of the varnish during storage, if, when diluted with a solvent to a conditional viscosity, the varnish will correspond to the TNPA in all respects. |
Coating: before use, the lacquer is thoroughly mixed and, if necessary, diluted with xylene, solvent or a mixture of one of these solvents with white spirit (nephras – C4-155 / 200) in the following weight ratios: white spirit (nephras – C4-155 (200) – xylene = 3: 2; white spirit (nefras – C4-155 / 200) – solvent = 1: 1.
Lacquer applied to the surface by spraying, brushing or dipping
Precautionary measures: When carrying out the termination of the room. Rubber gloves to protect your hands.
Transportation and storage in accordance with GOST 9980.5.