Penta Phthalic Varnish ПФ-035
Technical Specifications У 24.3-24010285-001:2002
Penta Phthalic Varnish ПФ-035 is a solution of penta phthalic resin in solvent or xylene. The resin is modified by distilled tall oil.
Application: it shall be used in the formulations of fast-drying enamels to paint devices and equipment, fast-drying priming coats.
Table: Qualitative indices according to Technical Specification У 24.3-24010285-001:2002
| № | Description | Requirements as to Technical Documentation | |
| superior quality | first quality | ||
| 1 | Colour (iodimetry scale), mg I2/100 cm3, not darker than | 50 | 160 |
| 2 | Appearance | Transparent, some opalescence is allowed | |
| 3 | Purity | Varnish coat, applied on glass plate, shall be transparent without any mechanical inclusions and small extrinsic particles | Individual mechanical inclusions are allowed |
| 4 | Relative viscosity at temperature /20±0.5/°С (viscosimeter ВЗ-246, nozzle diameter 4 mm), с | 100 – 200 | 100 – 200 |
| 5 | Weight fraction of nonvolatile matter, % | 52 ± 2 | 52 ± 2 |
| 6 | Acid value, mg, КОN/g, max. | 10 | 15 |
| 7 | Hardness of varnish film as to pendulum ТМЛ (type А), standard units, min. | 0,25 | 0,20 |
| 8 | Drying time to the point of 3, hours, max. at temperature (20±2) °С | 6 | 6 |
