3-Layer Polyethylene (FPE) Anti-Corrosion Epoxy Powder Coating

Surface Finish Options Overview

Продукт Въведение:
This product is formulated using epoxy resin and phenolic epoxy resin, designed and manufactured according to GB/T 23257-2009. It features high reactivity, strong adhesion, high cross-link density, and excellent resistance to chemicals, cathodic disbondment, and impact.

Употреба на продукта:
Suitable for anti-corrosion coatings on various oil and gas pipelines.

Характеристики на продукта:

Excellent adhesion to the substrate.Appropriate gel time and interfacial properties, easily fusing with the intermediate adhesive layer to form a cohesive unit.Provides protection over a wide temperature range, ensuring long-term corrosion resistance.Superior high-temperature cathodic disbondment resistance.High coverage area and transfer efficiency.Low melting temperature, high reactivity, and high curing completion rate, with good mechanical properties.

Powder Coating Performance Parameters

Test Точка	Техническа спецификация	Забележки
Външен вид	Uniform color, no lumps	Визуална проверка
Цвят	Според изискванията на клиента	Измервател на цветови разлики
Плътност (g / cm³)	1.4-1.6	GB / T 4472
Разпределение на размера на частиците	Residuals ≤3.0 at 150um, ≤0.2 at 250um	GB / T 6654
Летливо съдържание (%)	≤ 0.6	GB / T 6654
Gellation Time at 200°C (s)	≥12	GB / T 6654-1986
Curing Time at 200°C (min)	≤ 3	GB/T 23257-2009 Приложение A

 

Cured Powder Coating Performance Parameters

Test Точка	Техническа спецификация	Забележки
Adhesion (Grade)	≤ 2	GB/T 23257-2009 Appendix C
Negative Electrode at 48h5°C (mm)	≤ 8	GB/T 23257-2009 Appendix D
Negative Electrode at 30±5°C (mm)	≤ 15	GB/T 23257-2009 Appendix D
Bending Resistance at -20°C, 2.5°	Без пукнатини	GB/T 23257-2009 Appendix E

Параметри на приложение:

Параметър	Спецификация	бележки
Приложимо оборудване	Frictional charging spray, corona electrostatic spray
Дебелина на филма	120-150um	Adjustable according to workpiece requirements

 

Здравето и безопасността:

Имот	Спецификация	бележки
Токсичност	Нетоксични	Safe for handling and application
запалимост	Незапалим	Reduces risk in storage and use
Регулиране	GB15607-1995	Follow safety protocols for coating operations

 

Предпазни мерки:

Точка	Спецификация	бележки
Mixing Powders	Do not mix with other types
Външна употреба	Не се препоръчва	May cause fading and chalking
Подготовка на повърхността	Oil-free, water-free, surface treatment to Sa21/2 level (GB/T8923), anchor pattern depth 40-100um, clean surface from dust and abrasives
Съхранение	Ventilated, dry, below 30°C, away from heat sources, corrosive chemicals, and solvents, avoid strong light, maximum stack height 5 layers, keep packaging sealed
Температура на втвърдяване	Preheat steel pipe surface to above 190°C for better curing completion rate

 

Стандарти за съответствие:
GB/T 23257-2009 “Polyethylene Anti-Corrosion Coating for Buried Steel Pipelines”

Съхранение и опаковане:

Store in a dry environment below 30°C.Re-seal the packaging immediately after use to prevent moisture absorption.Packaged in 20kg paper boxes with an inner plastic liner.

This comprehensive approach ensures that the product’s quality and performance are maintained, while also providing clear guidelines for safe handling and application.