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High-speed rail-specific atomic putty

High-speed rail-specific putty is designed for large-area leveling and application on the surfaces of high-speed trains, bullet trains, and light rail vehicles. It features a longer working time during initial application but cures rapidly afterward. Key characteristics include easy applicability (no sagging), excellent sandability, superior flexibility, strong adhesion, and outstanding impact resistance.

Category:

Atomic Putty

Industrial Series

High-speed rail-specific atomic putty

Contact email:

sandy.wu@youzhimaterials.com

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Product details:

High-speed rail-specific atomic putty

Technical specifications

Construction mix ratio: Filler : CHPO curing agent = 100 : 2 (by weight)

Workable time after mixing: 30–50 minutes (varies depending on the hardener ratio and temperature changes)

Testing Items	Test Results	Testing standards	Note
Material Status	Light grayish-white, uniformly thick consistency	GB3186-82
Viscosity	10–13 cm	GB1749-89
Workable Spreading Time	The endpoint is when clumping occurs within 30–50 minutes, making it impossible to spread or apply.	GB1727-92
Surface drying time	≤30min	GB1728-79
Time that can be polished	≥150min	According to GB1728-79, Type C method shall be used.
Flexibility	≤25mm	GB1748-79 specifies that the procedure should be carried out
Adhesion	4mpa	FB5210-85 mandates the implementation of
Impact resistance	≥35 kg·cm	GB1732-93 specifies that it should be carried out
Heat resistance (120°C ± 2°C) 1 hour	No powdering, no cracking, and no flaking.	GB1735-79 Paint Film Heat Resistance Test Method	Environment: T & H 25℃ / 80%

Product Features and Suitable Substrates

Suitable substrates: steel plates, iron sheets, fiberglass, and existing paint layers, among others.
High-speed rail-specific putty is designed for large-area leveling and application on the surfaces of high-speed trains, bullet trains, and light rail vehicles—offering a longer initial working time while achieving rapid curing in the later stages.
It features easy application and scraping, no sagging, excellent sandability, superior flexibility, strong adhesion, and outstanding impact resistance.

Construction Instructions

Sand the substrate ready for puttying, removing grease and moisture.
Thoroughly mix the putty with the hardener until the color is evenly consistent.
Quickly level after mixing within the working time.
After applying and scraping, allow it to harden before sanding.
Thoroughly remove rust flakes, oil stains, old paint films, and moisture from the metal surface using solvents and a polishing tool, ensuring the surface to be coated remains clean and completely dry.
Mix the putty and hardener at a weight ratio of 100:2 until thoroughly combined (ensuring a uniform color). Use the mixture within the available working time of 30 to 50 minutes. If the mixed putty begins to set—noticeable by increased resistance when spreading—immediately stop using it. The usable time is influenced by ambient temperature, humidity levels, and the amount of hardener added.
Quickly press the mixed putty into the area to be applied, then swiftly smooth it out. As you apply and scrape, firmly pack the putty deeper into the surface to eliminate any tiny air bubbles—make sure none are left trapped in the substrate’s imperfections or gaps.
If thick coating by scraping is required, apply in layers (2–3 times), allowing each layer to surface-dry for 30 minutes (check by ensuring the surface is no longer sticky to the touch). Each application should not exceed 0.1 cm in thickness.
Grinding can only be performed once the putty has fully hardened. After applying and scraping, wait 60 minutes before sanding with ≥240-grit sandpaper—dry sanding with a sander is recommended. During the rainy season or in high-humidity conditions, slightly extend the sanding time to ensure optimal results.

Important Notes

Store in a cool, dry place, away from heat and ignition sources, and protect from direct sunlight.
If bubbles seep in during application, use a scraper to smooth it out thoroughly, ensuring excellent adhesion.
If a thick coat is needed, apply multiple thin layers until the desired thickness is achieved.
Unused putty and hardener must be stored tightly sealed; putty mixed with hardener should not be returned to its original container.
Storage time: 6 months.

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Our strengths

The company boasts a dedicated, in-house R&D team and currently holds multiple invention and utility model patents. In 2012, the company played a key role in drafting the industry standard HG/T 4561-2013, "Unsaturated Polyester Putty." Additionally, in 2021, it contributed to the development of a national standard—GB/T 41953-2022, "Paints and Varnishes—Determination of Moisture Content in Coatings by Gas Chromatography"—as well as the revision of another national standard: GB/T 6739, "Paints and Varnishes—Determination of Film Hardness by Pencil Method." In the coming years, the company plans to actively collaborate with several universities and research institutions through industry-academia partnerships, fostering innovation and co-developing cutting-edge products tailored to meet both customer needs and market demands. At the same time, we will continue strengthening our intellectual property strategy, with an ongoing focus on applying for and securing recognition for advanced technology projects. This includes pursuing certifications such as National High-Tech Enterprise status, Zhaoqing City High-Tech Enterprise designation, Guangdong Provincial Engineering Technology Research Center accreditation, and Zhaoqing City Engineering Technology Research Center certification, among others.

Factory Strength

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Factory Strength

Exhibition and trade shows

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Exhibition and trade shows

Qualifications and Honors

RoHS 2.0 Certificate for Unsaturated Polyester Putty

Quality System Certificate

Environmental Management System Certificate

Specialized, Specialized, and New Small and Medium-Sized Enterprises

Guangdong Provincial Engineering Technology Research Center

Qingyuan City Engineering Technology Research and Development Center

High-Tech Enterprise Certificate 2024

High-Tech Enterprise Certificate 2023

Invention Patent (A Preparation Method for Polyester Resin Suitable for Sprayable Atomic Putty, Atomic Putty Itself, and Its Preparation Method)

Invention Patent (A Solvent-Resistant Mud Yellow Eyeshadow and Its Preparation Method – Invention Patent Certificate)

A scrape-coated mid-coat automotive coating based on thermoplastic acrylic resin and its preparation method – Invention Patent Certificate

A High-Speed Rail Atomic Primer and Its Preparation Method – Invention Patent Certificate

A Dual-Axis Mixing and Dispersion Device for Coating Production – Utility Model Patent Certificate

A Tail Gas Recovery and Treatment System for a Coating Production Workshop – Utility Model Certificate

A Fully Automatic Water-Based Coating Filling and Weighing System – Utility Model Certificate

A Water-Based Coating Dispersion Vessel with a Dual-Dispersion Stirrer Head – Utility Model Certificate

An Eco-Friendly Coating High-Speed Dispersion Device – Utility Model Certificate

Utility Model Patent Certificate – A High-Level Coating Tank

Utility Model Patent Certificate – A Device for Pouring from Iron Drums

Utility Model Patent Certificate – A Resin Raw Material Storage Tank

Certificate of Honor 2

Certificate of Honor 1

Certificate of Honor