Powder Coating for Interior and Exterior Components of Rail Transit

Powder Coating for Interior and Exterior Components of Rail Transitis a dedicated powder coating series developed for complex interior and exterior components used in rail transit systems. You can rely on this system to achieve stable appearance, good leveling, reliable corrosion protection, and compliance with fire and smoke safety requirements essential for rail applications.

Application

You can apply this powder coating series to rail transit components with diverse structures and functional requirements, including:

• Exterior body panels and structural components

• Interior panels, frames, and decorative parts

• Rail vehicle equipment housings and covers

• Functional metal components requiring fire and smoke compliance

Tested and verified on:

• 0.8 mm degreased and derusted cold-rolled steel panels commonly used in rail vehicle manufacturing

• Both interior-use and exterior-use component simulations under laboratory conditions

Parameters

Item	Specification
Product Type	Polyester (external parts) / Polyester–Epoxy Hybrid (internal parts)
Curing Conditions	180 °C × 15 min or 200 °C × 10 min (metal temperature)
Application Method	High-voltage electrostatic spraying
Recommended Voltage	40–90 kV
Atomizing Pressure	Approx. 0.7 bar
Primary Pressure	Approx. 0.7 bar
Recommended Film Thickness	60–80 µm (test reference)
Secondary Rework	Sanding + air cleaning
Recoating Method	Reduced spraying voltage
Storage Conditions	Sealed container, dry and cool place below 30 °C
Shelf Life	12 months

Powder Characteristics

Item	Description
Chemical Types	Polyester for external parts; Polyester–Epoxy Hybrid for internal parts
Color Availability	External parts: customer-specified colors; Internal parts: metallic silver, woodgrain powder, white matt
Specific Gravity	1.2–1.8 g/cm³ (depending on color)
Particle Size & Gloss	Varies by product type and color

Coating Performance (Reference Data)

Property	Test Standard	Performance Requirement
Adhesion	ISO 2409 / ASTM D3359	Class 0
Impact Resistance	ISO 6272	50 kg·cm (8 mm indenter) / 2.5 Nm (16 mm indenter)
Pencil Hardness	ASTM D3363	≥ 1H
Alkali Resistance	ISO 2812-1	0.1 N NaOH, 48 h, no defects
Acid Resistance	ISO 2812-1	0.1 N H₂SO₄, 24 h, no muddling
Salt Spray Resistance	ISO 7253 / ASTM B117	≥ 500 h, corrosion ≤ 2 mm
Damp-Heat Resistance	ISO 6270	≥ 500 h, slight discoloration only
Weathering Resistance	ISO 11341 (QUV-B313)	≥ 500 h, Grade 3 or better
Water Resistance	ASTM D2247	20 cycles, no blistering
Flame Spread Index	ASTM E162	Is ≤ 35
Smoke Density	ASTM E662	Ds(1.5) ≤ 100, Ds(4.0) ≤ 165

Features

• You achieve excellent leveling, supporting smooth and uniform surface appearance.

• You benefit from strong UV and salt spray resistance for exterior rail components.

• You obtain easy-cleaning performance that helps maintain interior aesthetics.

• You can select different resin systems for interior and exterior applications to meet functional needs.

• You meet fire and smoke safety requirements critical for rail transit environments.

Case

We solved a compliance and durability challenge for a rail vehicle manufacturer.

The customer required a unified coating solution for both interior and exterior rail components. Their key challenges included meeting strict fire and smoke standards for interior parts while ensuring long-term weather resistance and easy cleaning for exterior panels.

We recommended using polyester-epoxy hybrid powder for interior components and polyester powder for exterior parts. By adjusting spraying voltage for complex geometries and optimizing curing conditions, the customer achieved stable adhesion, compliant fire performance, and consistent appearance across different component types. This helped streamline their coating process while meeting regulatory and durability requirements.

Other supplier products

	Antimicrobial and Antiviral Powder Coating	Product Introduction: This product is formulated using special resins, curing agents, and specialized antimicrobial agents. It features high react...
	Special Powder Coating for Coil and Pre Coating Plate	Product Characteristic: Special powder coatings for coil and pre coating plate is not only with simple construction,excellent appearance and one-s...
	Polyester based powder coatings MT-620 AM	Product Description MT-620 AM is a series of polyester based powder coatings, formulated without the use of TGIC, designed for the exterior enviro...
	Automobile spring powder coating	Features: Excellent physical and mechanical properties such as adhesion and flexibility. Excellent heat resistance and chemical resistance. Prod...
	Low-Cure Fluoropolymer Powder Coating	1. Product Categories & Materials This technical matrix details the specific resins and specialized powder systems available: Type Mat...

供应产品

Same products

	Heat Sealing Sterilization Pouch	卖方: Hopeway AMD	Heat Sealing Sterilization Pouch is designed for secure medical instrument packaging, supporting ...
	Catalytic Converter Scrap Supplier, Catalytic Converter Scrap for Sale, , Catalytic Converter Scrap, Catalytic Scrap for Sale, Catalytic Scrap Supplier, Scrap Catalytic Supplier	卖方: Trucont LLC	Trucont LLC 持续供应催化转化器废料，可立即装运发货。我们为全球各地的回收公司、金属加工商、汽车回收商、废料贸易商和买家提供优质的催化转化器废料。我们的催化转化器废料经过精心收集、分类...
	Epimedium Extract	卖方: Fruit Powder,Vegetable Powder	Product Name: Epimedium ExtractLatin Name: Epimedium Sagittatum Maxim.Specification: Icariin 5%, ...
	Pumpkin Powder	卖方: Fruit Powder,Vegetable Powder	Product Name: Pumpkin PowderLatin Name: Cucurbita pepo L.Used Part: FruitAppearance: yellow fine ...
	Broccoli Powder	卖方: Fruit Powder,Vegetable Powder	Product Name: Broccoli powder Latin Name: Brassica oleracea L.var.italic Planch. Used Part: Who...