SARV COAT 8822-7

Epoxy Fiberclass COATINGS



Description

Sarv coat 8822-7 is a tow component, polyamine cured, solvent free transparent epoxy. The epoxy fiberglass coating for the tank bottom consists of the sarv coat 8822-7 epoxy coating with one or two layers of the chopped strand glassmat plus one layer of the surfacing tissue.

 

Physical Data

 

Finish............................................... Gloss

Colour............................................. Clear

Substrate........................................ steel or steel primed    with sarv coat 8820

Volume Solids............................... 100 %

Specific Gravity............................ 1.1±0.02 gr/cm3

Flash Point..................................... 65°C

Recommended D.F.T................... 2.5 mm

Theoretical coverage

Epoxy............................................. 2.5 litre/sqm

Fiberglass mat............................... 450 gram/sqm

Fiberglass tissues........................... 30 gram/ sqm

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

Silica sand particle size................ 0.1-0.3 mm

Curring time (at 20° C)

To recoat........................................ up to 2 days

Initial set......................................... 24 hrs

Full chemical resistance............... 9 days

Thermal Resistance...................... immersed :95°C

                                                          Non-immersed: 120 °C

Shelf life ........................................ 1 year

package ......................................... 4 liter container

 

Application Details

Application method .................... spray or Roller Base/Hardener

Mixing ratio................................... 2/ 1 by weight

Cleaner........................................... SVT- 88

Pot life(20°C) .............................. 1.5 hrs for 10 litre

 

Outstanding Characteristics

Sarv coat 8822-7 epoxy laminate system will provide corrosion and chemical resistance to bottoms of water or oil storage tanks, which have suffered from internal corrosion. Sarv coat 8840-7 is specifically resistant to the corrosive environment of crude oil/ water mixtures. It provides great strength and excellent chemical resistance.

Typical Use

Sarv coat 8822-7 Epoxy laminate system is specifically designed for the lining and/or repair of tank walls and tank bottoms of oil or water storage tanks which are corroded and pitted.

Theoretical Consumptin per m2

Sarv coat 8820 primer (tie coat)          0.14 litre

Sarv coat 8822-7 filler (surfacer /filler)           380 grams

Sarv coat 8822-7 epoxy for sufacer/filler 0.16 litre

Sarv coat 8822-7 lining                                   2.5 litre

  • when using the 450 g/m2 glassmat a 10% overlap is necessary resulting in a consumption of 1.1 m2 glassmat per m2
  • when using the 300 g/m2 glassmat a 50% overlap is necessary resulting in a consumption of 2 m2 per m2
  • NOTE: A ctual consumption per m2 depends on tank design and steel condition. For instance heavily pitted areas, steel plate overlaps striker pads and chime areas influence the practical consumption rate.