(0)

You have no items in your shopping cart.
Log in

Personal menu

Search

Filters

Decontamination Chemicals For Offshore Maintenance Coating

Picture for Decontamination Chemicals For Offshore Maintenance Coating

Available for download

Product Number: 51321-16651-SG

Author: Sophia Xiaoxia Zhu; Benjamin T. A. Chang

Publication Date: 2021

Member Price: $0.00

Non Member Price: $20.00

Price: $20.00

Qty:

Dry abrasive blast is the most widely used surface preparation method in coating industries.
However, dry blasting has several drawbacks (1) dusting to cause environmental hazard and
health concern, and (2) residual salt contamination remained. Residual salts are buried in the
corrosion pits and difficult to clean off. The abrasive blasted steel surface will develop flash rust
within a day in a 50% Relative Humidity atmosphere and just in a few hours in offshore saline environment. Even a slight amount of chloride salt contamination about 2 μg/cm2 will be detrimental to coating performance, causing blistering, adhesion degradation, and underfilm corrosion to result in a short service life, particularly for the immersion service, such as pipeline coatings or tank linings.
Recently several new types of wet abrasive blast equipment have been developed in the market
for dust reduction. The rust inhibitors or decontamination chemicals must be added into the
abrasive blast water solution to prevent flash rust and reduce residual salts. There are several
decontamination chemicals in conjunction with the newly developed wet abrasive blast equipment.
Four decontamination chemicals with wet abrasive blast machines were studied. It was found that
they indeed reduce both dusting and residual salts and improve flash rust resistance.

Overview

Dry abrasive blast is the most widely used surface preparation method in coating industries.
However, dry blasting has several drawbacks (1) dusting to cause environmental hazard and
health concern, and (2) residual salt contamination remained. Residual salts are buried in the
corrosion pits and difficult to clean off. The abrasive blasted steel surface will develop flash rust
within a day in a 50% Relative Humidity atmosphere and just in a few hours in offshore saline environment. Even a slight amount of chloride salt contamination about 2 μg/cm2 will be detrimental to coating performance, causing blistering, adhesion degradation, and underfilm corrosion to result in a short service life, particularly for the immersion service, such as pipeline coatings or tank linings.
Recently several new types of wet abrasive blast equipment have been developed in the market
for dust reduction. The rust inhibitors or decontamination chemicals must be added into the
abrasive blast water solution to prevent flash rust and reduce residual salts. There are several
decontamination chemicals in conjunction with the newly developed wet abrasive blast equipment.
Four decontamination chemicals with wet abrasive blast machines were studied. It was found that
they indeed reduce both dusting and residual salts and improve flash rust resistance.

Product tags

Also Purchased

Picture for 06015 Why Do We Have Cracks in Epoxy Coatings

Available for download

06015 Why Do We Have Cracks in Epoxy Coatings for Water Ballast Tanks?

Product Number: 51300-06015-SG

ISBN: 06015 2006 CP

Author: E.H.Song, H.I.Lee, M.K.Chung, C.S.Park, C.H.Lee, C.S.Shin, S.K.Lee and K.K.Baek

$20.00

Picture for 04018 An Experience in Offshore Pipeline

Available for download

04018 An Experience in Offshore Pipeline Coatings

Product Number: 51300-04018-SG

ISBN: 04018 2004 CP

Author: Marcel G. Roche, Total SA

$20.00

Picture for 00757 FBE, a Foundation for Pipeline Corrosion

Available for download

00757 FBE, a Foundation for Pipeline Corrosion Coatings

Product Number: 51300-00757-SG

ISBN: 00757 2000 CP

Author: J. Alan Kehr and David G. Enos

$20.00

Recently viewed

Decontamination Chemicals For Offshore Maintenance Coating

Popular tags

View all