SARV COAT 8740

Epoxy polyamide primer COATINGS



Description

Sarv coat 8740 is a two component polyamide cured epoxy primer or tie coat.

 

Physical Data

 

Finish............................................... Flat

Colour............................................. upon request

Volume Solids............................... 51%(ASTM-D-2697 modified)

Specific Gravity............................ 1.30±0.05 gr/cm3

Flash Point..................................... 30°C

Recommended D.F.T................... 40-60 microns

Theoretical coverage.................... 12.75-8.5 sqm/lit.

                                                          9.44-6.3 sqm/kg

Practical Coverage....................... Depends on loss factor

Touch dry....................................... 2 hrs at 35°C

                                                           3 hrs at 20°C

Fully dry......................................... seven days at 20°C

                                                          6 days at 35°C

Thermal Resistance...................... 140°C

Shelf life ........................................ 1 year at 25°C

Package.......................................... 5 & 20 liter container

 

Application Details

Application method .................... Application method Brush, Roller.

Nozzle orifice................................. . .021"

Nozzle pressure............................. 150 bar/2200 Psi

Mixing ratio................................... Base/Hardener 4/1 by weight

Thinner/Cleaner............................ SVT- 87

Pot life ............................................ 8 hrs at 20°C

Recoat interval min:.................... 24 hrs at 20°C

Recoat interval max:................... 14 days at 20° C

Outstanding Characteristics

  • Excellent rust preventing
  • High chemical & water resistance
  • Suitable as a first coat in various paint systems.
  • Suitable for a variety of substances.
  • with the proper top coat, withstand splash or spillage of water, solvents, chemicals and petroleum products.

Recommended Use

As a general purpose rust preventing primer for epoxy systems, on structural steel, galvanized surfaces, pipes, tanks oil refineries, power plants. Chemical process plants, for immersion and non immersion service, applicable both as primer & tie coat over zinc ethyl silicate.

Surface Preparation

Remove oil and grease, etc. with suitable detergent. Remove salt and other contaminants by (high pressure) fresh water cleaning. Clean damaged area thoroughly by power tool cleaning to ST3 (minor areas)

Or by abrasive blasting to minimum SA2, Preferably to Sa2½ (for repair and maintenance) Abrasive blasting to Sa 2½SSPC-10 (for new steel).