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Product Name:
Alloy Gray
Alloy Putty is a two-component unsaturated polyester putty designed for exceptional adhesion to various alloy substrates used in automotive applications. It’s ideal for fast-drying on multiple metal surfaces, including galvanized steel, and offers excellent sandability—making it perfect for quick repairs, touch-ups, and use in automotive 4S dealerships.
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Product details:
Alloy Gray
Technical specifications
Construction mix ratio: Putty: BPO curing agent = 100 : 2 (by weight)
Workable time after mixing: 2–5 minutes (varies depending on the hardener ratio and temperature changes)
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Testing Items |
Quick-drying |
Standard dry type |
Testing standards |
|
Material Status |
Yellow-gray body, no hard lumps |
Yellow-gray body, no hard lumps |
GB3186-82 |
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Viscosity |
10–11 cm |
10–11 cm |
GB1749-89 |
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Workable Spreading Time |
2.5min |
4.5min |
GB1727-92 |
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Surface drying time |
≤15min |
≤15min |
GB1728-79 |
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Time that can be polished |
≥20min |
≥25min |
GB1728-79 Type C |
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Flexibility |
≥60mm |
≥60mm |
GB1748-79 |
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Adhesion |
3mpa |
3mpa |
FB5210-85 |
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Impact resistance |
≥15 kg·cm |
≥15 kg·cm |
GB1732-93 |
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Heat resistance (120°C ± 2°C) 1 hour |
No powdering, no cracking, and no flaking. |
GB1735-79 Method for Determining the Heat Resistance of Paint Films |
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Product Features and Suitable Substrates
- Suitable substrates: stainless steel, aluminum alloy, galvanized steel, bare iron, fiberglass, and surfaces with existing paint layers
- Alloy putty is a two-component unsaturated polyester putty with exceptional adhesion, designed specifically for various alloy substrates in the automotive industry.
- It dries quickly on various metal substrates, including galvanized steel, allowing for rapid sanding—making it ideal for quick repairs, touch-ups, and use in automotive 4S shops.
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.
- After mixing, quickly smooth it out within the working time. 4. Once cured after application, you can proceed with sanding.
- Thoroughly remove rust flakes, oil stains, old paint films, and moisture from the metal surface using solvents and a polishing tool, ensuring the substrate remains clean and completely dry before coating.
- Mix the putty and hardener at a weight ratio of 100:2 until thoroughly combined (ensuring a uniform color), and use the mixture within its gel time—typically ranging from 2 to 5 minutes for most putties. Keep in mind that the colder the temperature, the more hardener you’ll need to add; however, the ratio should generally not exceed 100:3.
- Use a spatula to apply the prepared putty onto the sanded two-component primer or pre-treated board surface. If applying a thick layer, it’s best to spread multiple thin coats gradually until the desired thickness is achieved. During application, if any air bubbles get trapped, be sure to smooth them out thoroughly with the spatula to ensure excellent adhesion.
- The optimal wet-sanding time is 15–25 minutes after applying the putty (note that after wet sanding, the surface must be allowed to dry completely before painting). For dry sanding, the best timing is 25–35 minutes. Once sanding is complete, simply remove any surface dust before proceeding with subsequent steps such as applying the mid-coat paint, topcoat, or clear protective varnish.
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: 12 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
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Sihui Company Address:
No. 10 Chuangzhan 1st Street, Jianggu Fine Chemical Zone, Sihui City
Qingyuan Company Address:
No. 10 Jia Shun Road, Jin Fu Industrial Zone, Yin Zhan, Qingcheng District, Qingyuan City
Phone:86-763-3697988
International:86-180-2330-1776
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