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Michelle Ystad Eriksen / Jotatemp 250 – Offshore meeting / May 2016

Jotun Protective Coatings

Glass flake reinforced high temperature composite coating



The challenge

Efficiency and cost is important

Higher temperature increased efficiency

High temperatures makes coating selection challenging



Glass flake reinforced composite

Continuous heat resistance

up to 250C

Excellent anticorrosive properties

The solution? - Jotatemp 250



Benefit

Advantage

Feature

Highest level of safety and protection

Passes C5M-H and C5I-H testing in accordance with

ISO 12944

Excellent anticorrosive properties

Meets customer’s requirements for high temperature

service

Continuous temperature resistance to

250C

Adds flexibility and strengthens the

coating

Glass flake reinforced

composite coating



Product benchmark



Composites

Blend of two materials with different properties giving a new material with unique properties



Introduction of glass flakes – making a composite

• Optimizing the amount of glass flakes enhances film properties

• Especially effective at 250 °C

Epoxy HR



ISO 12944 testing



ISO 12944 testing

Product Neutral salt spray Continuous

condensation

Prohesion

Jotatemp 250

Chemical NaOH (10%) H2SO4 (10%) Mineral spirit Water 90°C

Jotatemp 250

Passes C5M-H and C5I-H in accordance with ISO 12944



Continuous heat resistance at 250C

Product/Time 500h 1000h

Jotatemp 250

Product/Time 500h 1000h

Epoxy HR



Cyclic immersion testing

Product Cyclic immersion Cyclic immersion

Jotatemp 250

10x



Square pipe test

• Internal Jotun test developed together with Sintef

• Test method based on the “square pipe test” developed by HiTempCoatings. A modification of the Shell test and ASTM G189.

• Will be part of the new ISO standard for verifying CUI coatings



Square pipe test

• The pipe is subjected to cyclic conditions for 30 cycles before the tested coating is examined

• A coated square pipe is placed in a test chamber and heated internally using an aluminum heating block

30x

Dry heat at 250C – 8 hrs

Immersion in fresh water at 90C – 16 hrs



Square pipe test

Jotatemp 250 Epoxy HRExcellent

performance in cyclic conditions



The highest peak temperature in the market

• Peak temperature up to 300C

• Debottlenecking and steam outs

• Optimize processes



Usage areas

• Pipes at elevated temperatures

• New construction and maintenance



Trial application - Oman

• Application at aluminum plant. Steel temperature is 100C



Application on hot pipe with temperature gradient



Recommended systems and benefits

Specification Coating system Benefit

Standard 2 x 150 µm Jotatemp 250

Standard system offering good anticorrosive properties in accordance with ISO 12944 and the excellent heat resistant properties

Premium1 x 75 µm zinc silicate + 1 x 150 µm Jotatemp 250

Increased durability of coating system with the addition of zinc silicate

Cosmetic finish*

+ 2x 25µm Solvalitt Midtherm*

Gives a nice cosmetic finish to the epoxy coating

*Up to 230C



Jotatemp 250

Glass flake reinforced composite

Continuous heat resistance

up to 250C

Protects against CUI

glass flake reinforced high temperature composite coating › wp-content › uploads › 2018 › 06...

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