Coating Supporting Scheme for Rail Transit Industry
Rail Transit Coating
,Rail Transit Industry Coating Supporting Scheme
Primer + Putty +Surfacer + Topcoat (Base Coat + Clear Coat)
It is safe and eco-friendly with rich color options and easy application. It features outstanding adhesion and durability, which can maintain the integrity and appearance of the coating film for a long time.
Neutral salt spray resistance: ≥1000 h
Artificial accelerated weathering test: ≥1000 h
High-low temperature cycling alternating test (60 cycles): No blistering, cracking or peeling of coating film.
X-cut test: Grade ≤1
Pull-off adhesion: ≥4 MPa
Blade prying adhesion: No significant reduction
Anti-Rust Primer + Heavy-Duty Anti-Corrosion Coating + Damping Coating
It boasts excellent corrosion resistance, long-term protection life and sound mechanical properties. It can effectively resist erosion by chemical media such as acids, alkalis and salts, and form an effective barrier against corrosive factors like moisture and oxygen in the atmosphere, making it especially suitable for harsh working conditions such as marine and chemical environments.
High-low temperature alternating cycling test (60 cycles)
Adhesion after blade prying shows no significant reduction.
Pull-off adhesion strength: ≥2.5 MPa
(No failure at substrate/primer interface)
Neutral salt spray test: 1200 hours
No blistering and no rust on the panel surface;
The unilateral width of coating failure or corrosion at the scratch line ≤ 2 mm;
Adhesion after blade prying has no obvious reduction.
Two-Component Epoxy Primer + Two-Component Polyurethane Topcoat
Easy to apply with stable performance and fast drying speed. The simplified coating process saves time and labor costs. In addition, excellent adhesion and durability keep the coating film intact and maintain its appearance for a long period.
Heat Resistance (150±2℃, ≥1 h)
Neutral Salt Spray (NSS) Resistance: ≥1500 h
Artificial Weathering Test (Fluorescent UV Lamp): 1500 h
Abrasion Resistance (CS-10 Abrasive Wheel, 500 revolutions under 500 g load)
The global rail transit industry has witnessed rapid expansion. Accelerated urbanization and rising travel demand in China make rail transit a vital solution to urban congestion with its high efficiency, eco-friendliness and large passenger capacity. Tailored for this market, HAOLISEN rail transit coating solutions deliver comprehensive customized anti-corrosion coating protection for high-speed trains, railway passenger carriages, metro vehicles, rail locomotives and their components.
System 1: Primer + Putty + Surfacer + Topcoat (Base Coat + Clear Coat)
|
No. |
Item |
Performance Parameter |
Test Standard |
|
1 |
Solvent Resistance Rub Test (Methyl Ethyl Ketone, 50 reciprocating rubs) |
Immediately after rubbing, compare the appearance and hardness of the coating film with the adjacent area; no obvious change shall occur. |
GB/T 23989 |
|
2 |
Heat Resistance (150±2 ℃, ≥1 h) |
No substantial change in appearance |
GB/T 1735 |
|
3 |
Washing Resistance |
No blistering of the coating; no change in color or gloss |
GB/T 31410 |
|
4 |
Alternating High-Low Temperature Cycle Test (60 cycles) |
No blistering, cracking or peeling of coating film; Cross-cut or X-cut test grade ≤1; Pull-off adhesion ≥4 MPa (no failure at substrate/primer interface); no obvious reduction in adhesion after blade prying test |
Q/SF, Q/CR 546.6 |
|
5 |
Pull-off Adhesion |
≥5 MPa |
GB/T 5210 |
|
6 |
Neutral Salt Spray (NSS) Resistance, ≥1500 h |
No blistering or rusting on panel surface; unilateral width of coating damage and rust creep at scribe ≤2 mm; Cross-cut or X-cut test grade ≤1; no obvious reduction in adhesion after blade prying test |
GB/T 1771 |
|
7 |
Artificial Climate Aging Test (Fluorescent UV Lamp), 1500 h |
Chalking grade ≤1 |
GB/T 14522 |
|
8 |
Abrasion Resistance (CS-10 Abrasive Wheel, 500 revolutions / 500 g load) |
Weight loss ≤25 mg |
GB/T 1768 |
|
9 |
Stone Chip Resistance |
Grade ≤2 |
Q/CR 546.4 |
System 2: Anti-Rust Primer + Heavy-Duty Anti-Corrosion Coating + Damping Coating
|
No. |
Item |
Performance Parameter |
Test Standard |
|
1 |
Coating Color & Appearance |
Compliant with specified color; flat, smooth and uniform surface; free of particles, pinholes, bubbles and wrinkles |
Visual Inspection |
|
2 |
X-Cut Test |
Grade ≤2 |
GB/T 9286 |
|
3 |
Alternating High-Low Temperature Cycle Test (60 cycles) |
No blistering, cracking or peeling; X-cut test grade ≤1; no obvious reduction in adhesion after blade prying test (pull-off adhesion to be met) |
Q/CR 546.4 |
|
4 |
Neutral Salt Spray Resistance (1200 h) |
No blistering or rusting on panel surface; unilateral width of coating damage and rust creep at scribe ≤2 mm; no obvious reduction in adhesion after blade prying test |
GB/T 1771 |
System 3: Two-Component Epoxy Primer + Two-Component Polyurethane Topcoat
|
No. |
Item |
Performance Parameter |
Test Standard |
|
1 |
Coating Color & Appearance |
Color complies with design or contract requirements; uniform surface tone; free of particles, pinholes, bubbles and wrinkles |
Visual Inspection |
|
2 |
Bend Test (Cylindrical Mandrel) |
Mandrel diameter ≤2 mm |
GB/T 6742 |
|
3 |
Erichsen Cupping Test |
Cupping depth ≥4.0 mm |
GB/T 9753 |
|
4 |
Cross-Cut Test |
Grade ≤1 |
GB/T 9286 |
|
5 |
Impact Resistance |
Impact height ≥50 cm |
GB/T 1732 |
|
6 |
Neutral Salt Spray (NSS) Resistance (Steel Panel), 1000 h |
No blistering or rusting on panel surface; unilateral width of coating damage and rust creep at scribe ≤2 mm; no obvious reduction in adhesion after blade prying test |
GB/T 1771 |
|
7 |
Methyl Ethyl Ketone (MEK) Rub Test |
After 25 reciprocating rubs: no substrate exposure or coating dissolution; no excessive pigment residue on test cloth |
GB/T 23989 |
Glossary Explanation
1. NSS: Neutral Salt Spray
2. MEK: Methyl Ethyl Ketone
3. Cross-cut test: Grid adhesion test
4. Pull-off adhesion: Direct tensile adhesion test
5. Stone chip resistance: Anti-chipping performance against gravel impact
6. Alternating high-low temperature cycle: Thermal cycling test
7. Fluorescent UV aging: UV fluorescent accelerated weathering test
FAQ
Q:What's your MOQ?
A:Our MOQ is 300 Liters.
Q: Can we do OEM?
A:Yes, OEM is welcome.
Q:Are you manufacturer or trading company?A:We are professional manufacturer and we have our own factory
Q:Can we visit your factory?
A Yes. You are welcome to our factory.
Q:How about your payment?
A:30% deposit in advance, 70% balance by T/T, L/C, paypal, Western Union or else before shipment.
Q:Do you provide samples?
A:Yes, we can provide you with free sampples, you just need to pay for freight.
Q:How about your delivery time?
A:Usually 15 days after receiving your deposit.
Our mission is to offer "High Quality" & "Good Service" & "Fast Delivery" to help our clients to gain more profits.
