Download doc - Paint Method Statement ESK 3057 ESSA

ROOFINGS MIDDLE EAST

Doc No. ESK 3057 PMS 01 Date: 22/10/2011 Rev: 0 Page 1 of 6

Title: METHOD OF PAINT APPLICATION

Scope.This method statement specifies process of paint coating applied on fabricated iron and steel articles. Surface preparation.

Substrate should be blast cleaned to Sa 2.5. Surface should be dry and free from contaminants. Site surface preparation operation resulting in exposed bare metal, shall be performed only when environmental humidity is not over 85% and ambient temperature is 10°to 45° and there shall be no moisture on the surface of substrate. After blasting and immediately prior to coating, the blasting dust shall be removed by air equipment of high pressure.

Paint System.Paint. 1st Coat Transozinc Silicate Solventborne 1.52 DFT 65µ - Grey / Flat 2nd Coat Transpoxy Master MIO HB 10.21 DFT 125µ- Silver grey / Matt 3rd Coat Transpoxy Finish 4.60 DFT 60µ- Transocean colour shades / GlossySystem. Two pack high solids modified epoxy primer coating formulated with Masterbond binder technology. Application Data first coat.Paint - Transozinc Silicate Solventborne 1.52 DFT 65µ - Grey / FlatSurface preparation to be checked for suitability and free from contaminants before start painting. Record – Blasting & Painting inspection Report. Paint to be applied by airless spray.Application data.Mixing ratio By volume, binder to zinc dust: 40 to 60

The zinc dust should be added gradually whilst stirring by means of mechanical mixer. Keep stirring until mixture is lump free. If necessary, remove coarse particles By sieving to avoid blockage of the spray equipment.

Pot life 23˚C: 8 hours 30˚C: 6 hour

Guiding data Air less spray Pressure at nozzle: 120 – 150 bar. Nozzle size: 0.53 – 0.64 mm Spray angle: 40 -80 degrees. Volume of thinner: 0 – 3%Thinner/Cleaner Transocean Inorganic Zinc Thinner 6.06Conditions Humidity: between 30 and 100% RH Temperature of paint before application: min: 5˚C, max: 30˚C

The temperature of the substrate should be at least 3˚C above the dew Point of the air. Air temperature and relative humidity must be measured In the vicinity of substrate and

Issued by Valsarajan Riv: 0Review bY Date: 22/10/2011Approved BY




recorded.

Drying and recoating times.

Substrate temperature Full cure Dry to recoatMinimum Maximum (1)

30% RH, 23˚C 24 hours 24hours Indefinite50% RH, 23˚C 12 hours 10hours Indefinite100% RH, 23˚C 2 hours 2hours Indefinite

Inspection and testingDry film thickness to be checked by Elcometer and recorded in paint inspection report RME/FAB/006

AcceptanceMaximum – minimum coating thickness limit Minimum – 52 µ (No single spot ( avg. of 3 gauge readings) shall be less than 80% of the

specified dry film thickness) Discard any unusually high or low gauge reading that cannot be repeated consistently & take the average of acceptable gauge reading

measurement Maximum – 98 µ

SSPC PA 2

Area Spot measurement

~30 sq.m 5 Spots/ each 10 sq.m~100 sq.m Each 5 spots/ Randomly selected three 10 sq.m

RecordsSurface Preparation.Number of coat.Thickness of painting.Color of painting.Painting temperature.Painting humidity.Application Data second coat.





Paint - Transpoxy Master MIO HB 10.21 DFT 125µ- Silver grey / MattPre painted surface to be checked for suitability and free from contaminants before start painting. Drying and recoating time to be maintained and recorded – Painting inspection Report. Paint to be applied by airless spray.Application data.Mixing ratio By volume, base to hardener: 80 to 20Pot life 5˚C: 12 hours 23˚C: 8 hours 30˚C: 6 hours

Guiding data Air less spray Pressure at nozzle: 140 – 180 bar. Nozzle size: 0.38 – 0.53 mm Spray angle: 40 -80 degrees. Volume of thinner: 0 – 5%Thinner/Cleaner Transocean Epoxy Thinner 6.03Conditions Humidity: below 85% RH Temperature of paint before application: min: 5˚C, max: 30˚C Substrate temperature: min: 5˚C, max: 35˚C


recorded.Drying and recoating times.

Substrate temperature

Touch dry Dry to handle Full cure Dry to recoatMinimum Maximum (1)

10˚C 12 hours 24 hours 14 days 24hours 7 days23˚C 6 hours 12 hours 7 days 10hours 5 days30˚C 4 hours 10 hours 8 hours 8 hours 2 days


AcceptanceMaximum – minimum coating thickness limit Minimum – 152 µ (52+100) (No single spot ( avg. of 3 gauge readings) shall be less than 80% of the

specified dry film thickness) Discard any unusually high or low gauge reading that cannot be repeated consistently & take the average of acceptable gauge reading

measurement





Maximum – 285 µ

SSPC PA 2



RecordsSurface Preparation.Number of coat.Thickness of painting.Colour of painting.Painting temperature.Painting humidity.Application Data third coat.Paint - Transpoxy Finish 4.60 DFT 60µ- Transocean colour shades / glossyPre painted surface to be checked for suitability and free from contaminants before start painting. Drying and recoating time to be maintained and recorded – Painting inspection Report. Paint to be applied by airless spray.Application data.Mixing ratio By volume, base to hardener: 80 to 20Pot life 10˚C: 16 hours 23˚C: 8 hours 30˚C: 4 hoursGuiding data Air less spray Pressure at nozzle: 120 – 180 bar. Nozzle size: 0.38 – 0.53 mm Spray angle: 40 -80 degrees. Volume of thinner: 0 – 5%Thinner/Cleaner Transocean Epoxy Thinner 6.03Conditions Humidity: below 85% RH Temperature of paint before application: min: 10˚C, max: 30˚C Substrate temperature: min: 5˚C, max: 35˚C


recorded.Drying and recoating times.





Substrate temperature

Touch dry Dry to handle Full cure Dry to recoatMinimum Maximum (1)

10˚C 12 hours 30 hours 7 days 24 hours Indefinite23˚C 4 hours 24 hours 5 days 16 hours Indefinite30˚C 2 hours 16 hours 3 hours 12 hours Indefinite


AcceptanceMaximum – minimum coating thickness limit Minimum – 200 µ (52+100 +48) (No single spot ( avg. of 3 gauge readings) shall be less than 80% of the

specified dry film thickness) Discard any unusually high or low gauge reading that cannot be repeated consistently & take the average of acceptable gauge reading measurement.

Maximum – 375 µ

SSPC PA 2



RecordsSurface Preparation.Number of coat.Thickness of painting.Color of painting.Painting temperature.Painting humidity.

Renovation

If any painted surface is damaged while handling, transport, erection - to repair following procedure to be adopted.





1) Damaged surface to be checked for extent of damage

2) Prepare damaged surface for painting by sanding by hand or by power tool.

1) Apply paint by Brush or roller to the prepared area to the sufficient coating thickness.

Health and safety

As a general rule, avoid skin- eye contact by wearing overalls, gloves, goggles, mask etc. Spillage on the skin should immediately be removed by through washing with lukewarm water and soap or a suitable industrial cleaner. Eyes should flushed with fresh water and medical attention sought immediately. Spraying should be carried out under well ventilated conditions. Avoid inhalation of solvent vapors and paint mist by wearing air mask.
