Data Sheet

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       DTK-69 Inner-Coated Powder for Transmission Pipe

Properties and Applications  

DTK-69 is a thermosetting epoxy powder coating for inner coater of pipeline. It meets with PC8007 red primer to make

high-quality coating. Which have the tough, excellent flexible, high impact resistance, high gloss, thick-film coating for

secondary and recovery system, particularly CO2.

The coating surface is very smooth, which greatly improves the hydraulic efficiency of the pipeline system. It is very

suitable for CO2, injection, oil and gas, sewage and other working conditions that need to improve corrosion resistance.

The coating layer thickness is generally more than 250 microns, and it is applicable to all kinds of transmission pipes,

sliding sleeves, fittings, etc. below 130 (266  F).

Main Specification   

No.

Item

Specifications

Method

1

Color

Greed

Visual

2

Curing time

235C, 45~60min

 

3

DSC

120CTg2135C

Tg<= 2C

CSA Z245

Clause 12.7

4

Coating thickness

250~500um (10~20mil)

250~800um (10~32mil)Custom

NACE

TM0185-2006

5

Service temperature

130C(266 F)

 

6

Service pH range

4-11

 

7

Coating roughness

Ra1.6um (Rz6.3umor 6)

 

8

Abrasion resistance

<50 mg TABER Abraser

[CS-17,1kg,1000r]

ASTM D4060

9

Impact resistance

5J

ISO 6272-1

10

Adhesion

Pull-off test>25 MPa

X cutting method5A

ISO 4624

ASTM D3359

11

Autoclave tests

No blistering, cracking, swelling or softening or loss of adhesion

 

 2. Features

Recommended Service

Benefits

Oil and gas Transmission pipeline

CO2/injection/oil and gas/sewage pipeline

Chemical pipeline and fittings

Excellent tough, flexible

Excellent adhesion

Wide temperature and pH range of 4-11

Good corrosion resistance

High Gloss, Improve hydraulic efficiency

High impact resistance

 

3. Autoclave tests

No.

Test Medium

Test Temp.

Test Pressure

Test Time

1

30%CO2, 70%N2

5%NaCl Solution

130ºC

10MPa

24H

2

10%H2S40%CO2,50%N2

5%NaCl Solution

130ºC

10MPa

240H

3

50%CO2,50%N2

5%NaCl Solution

130ºC

10MPa

240H

4

0.5%H2S,5%CO2,94.5%N2

5%NaCl Solution

130ºC

3MPa

1000H

5

5% H2S,25% CO2,70%CH4

5%NaCl Solution

130

3MPa

750 H

Note:

1.Above values are the accumulative typical ones by recognized testing  method, but, in order to ensure you to

select our products properly, please refer to above specification and test the samples based on your using

purpose or feel free to contact our engineers for further and better understanding.

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