Stainless Steel FM Project Paint Trial_Nov2012 (2)

8/20/2019 Stainless Steel FM Project Paint Trial_Nov2012 (2)

http://slidepdf.com/reader/full/stainless-steel-fm-project-paint-trialnov2012-2 1/5

Elijah Acevedo Shenzi SS Coating Paint Trials November 8, 2012

1 | P a g e

Shenzi Stainless Steel Coating Project; New Paint Trials

Scope

The intent of the new paint trials is to assess the performance of two alternative coating systems

(manufactured by Belzona and Chemco), for use to coat the presently uncoated stainless steel piping at

the Shenzi facility. The systems trialed will be compared to the regularly used Carboline system and

recommendation made for a path forward.

The two trial coating systems were applied, together with the Carboline system, alongside each other on

parallel piping. The systems were all applied using the same surface preparation and under comparable

conditions. Two areas were selected for the trial, a vertical section which allows the pipe to be viewed

at deck level, and an at height horizontal piping section which is more representative of the typical

stainless steel piping arrangement at Shenzi. Both trial areas are on the Production Deck on the South

side of the Facility. The trial areas are illustrated in the photographs below.




2 | P a g e




3 | P a g e




4 | P a g e

Coating System Specifications and Field Trial Results

Belzona 5841 Chemco-RL 500 Carboline

Surface Prep

Method

SP1 SP2 SP3: Hand Sand, SS Wire

brush and DA Sanders

SP1 SP2 SP3: Hand

Sand, SS Wire brush

and DA Sanders

SP1 SP2 SP3: Hand Sand, SS

Wire brush and DA Sanders

Application

Method

Brush only Brush and roller Brush and roller

Number of Coats 2 Coat System with total DFT of

16

1 Coat system with

total DFT of 4-8

3 coat System with strip coat

with total DFT of 9-14

Working Pot life 30 to 60 minutes 60 to 90 minutes 1st

coat:30 to 80 minutes

2n

coat: 4 hours

3rd

coat: 4 hours

Overcoat Times Minimum of 2.5 hours Minimum 5 hrs to

maximum unlimited

1st

coat: 9-18hrs depending on

steel temperature

2n

coat: 4-8hrs depending on

steel temperature

Humidity/Dew

Point Limits

Max: 85% with steel temp 5◦

higher than dew

There are no humidity

or dew point

restrictions

Max: 85% with steel temp 5◦

higher than dew

Temperature

Limit

Steel temp min and max: 86◦F to

176◦F

No restrictions Average 50◦ to 135◦ for all

coats

Application time

of 40 foot section

1st

Coat: 40

mins

2n

Coat: 45

mins

25 mins 45 mins (same time for all 3

coats)

Overall Time; Mix

to Application

1 hr for 40 ft section combined 45 minutes for 40 ft

section

1 hr for each coat on a 40 ft

section

Stainless Steel FM Project Paint Trial_Nov2012 (2)

Documents

Transcript of Stainless Steel FM Project Paint Trial_Nov2012 (2)