The LIAM-T tape is designed for protection against corrosion of external surfaces of steel underground product pipelines during their construction or repair during transportation of viscous products.
GOST R 52602 "Anticorrosive polymeric-asmol coating-tape "LIAM. Specifications"
GOST R 52602 "Anticorrosive polymeric-asmol coating-tape "LIAM. Specifications"
Characteristics
| Сriteria | Value |
|---|---|
| Tape thickness | 2,0 ± 0,3 mm |
| Tape width | 450 mm, 225 mm, 150 mm |
| Temperature value | + 60 °С (temperature of the pumped product) |
| Guaranteed shelf life | 24 months |
| Appearance of the tape | No folds, punctures or tears |
| Appearance of asmol mastic layer | Uniform coating without foreign materials. Tearing of the layer, creases more than 1 mm high, sinks or gaps are not allowed |
| The brittleness point of the mastic layer, °C, not higher | - 30 °C |
| The flexibility of the tape at 0 °С | Cracks, tears, peeling of mastic from the base are not allowed |
| Adhesion to primed surface at temperature 20 °С by peeling method, N/cm (kgf/cm), not less than | 20,0 (2,0) |
| Adhesion of tape in overlap at temperature 20 °С, N/cm (kgf/cm), not less than | 10,0 (1,0) |
| Water absorption in 24 hours at 20 °C, %, not more than | |
| - in distilled water | 0,5 |
| - in seawater | 0,3 |
| Area of coating peeling at cathodic polarization after exposure in electrolyte at 20 °С for 30 days, cm2, not more than | 5,0 |
| The transient resistance of the coating after exposure for 3 days in a 3% NaCI solution, at 20 °C, Ohm • m2, not less than | 1·108 |
| Funginertness, score, not less than | 2 |
Calculation of coating structures based on LIAM tape
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Calculation
LIAM tape | 0 kg |
Asmol primer | 0 kg |
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