Type: PF-283 lacquer is a solution of alkyd resin modified with vegetable oils, vegetable oils and their processed fatty acids, distilled tall oil fatty acids and distilled tall oil in organic solvents with added desiccant.
Scope: it is intended for coverings on the oil paints, the wooden and metal surfaces operated indoors.
Specifications:
No | Name of the indicator | Requirements TNPA | |
Top grade | First grade | ||
one | Iodometric lacquer color scale mg J 2 / 100cm 3 , which is darker than | 130 | 300 |
2 | The appearance of the coating | After drying, the varnish should form a uniform, transparent, without foreign inclusions surface | |
3 | Gloss of a film on photoelectric gloss meter,%, not less | 80 | 60 |
four | Relative viscosity by viscometer type VZ – 246 (or VZ – 4) at a temperature of (20.0 ± 0.5) ° С, s | 40 – 60 | 40 – 60 |
five | Mass fraction of nonvolatile substances,% | 50 ± 2 | 50 ± 2 |
6 | Drying time to degree 3, h, not more: at temperature (20 ± 2) ° С
at temperature (60 ± 2) ° С |
36
3 |
36
3 |
7 | Flexural elasticity of the film, mm, not more | one | one |
eight | Film hardness by pendulum device, not less: type TML (pendulum A), rel. units
type M- 3, conventional units |
0.15 0.35 |
0.13 0.35 |
9 | Resistance of a varnish film to static exposure to water at a temperature of (20 ± 2) ° С, h, not less | eight | four |
It is allowed to increase the viscosity of the varnish during storage, if, after dilution with a solvent to the conditional viscosity, the varnish meets the requirements of the TNPA |
Surface preparation: the wooden surface is pre-cleaned with sandpaper and cleaned of dust, the metal surface is cleaned of contaminants (fat and others), rust, scale.
Coating: before use, the varnish is thoroughly mixed and, if necessary, diluted with turpentine or a mixture of turpentine with white spirit (nefras – C4-155 / 200) in a 1: 1 ratio.
To apply a varnish on a surface a kraskoraspylitel or a brush.
Drying time of each layer at a temperature of (20 ± 2) ° С – 36 h.
Varnish consumption for single-layer coating – 70 – 75 g / m².