Special Adhesives for Yellowing-Resistant EPDM

Physical state: Colorless to pale yellow, transparent liquid

Main chemical components: Terminal isocyanate prepolymer, high-end weather-resistant formulation system

Viscosity (25℃, mPa·s): 2200–2400; moderate viscosity with excellent balance in mixing and spreading.

Tensile strength (MPa): 0.55, with stronger structural load-bearing capacity

Tensile elongation at break (%): 86; excellent elasticity and toughness, with strong resistance to deformation.

Packaging specifications: 20 kg small drum (for repairs/small-scale projects); 200 kg iron drum (for large-scale projects/exports).

① Super-resistant to yellowing and UV aging

Utilizing a specialized weather-resistant formulation, this product specifically addresses the issues of yellowing, discoloration, and aging/powdering commonly encountered with conventional PU adhesives when exposed to outdoor sunlight. It ensures that the surface maintains its vibrant color and aesthetic appeal even after prolonged outdoor use, making it the ideal adhesive for high-standard outdoor sports court surfaces.

② Compliant with environmental regulations and the new national standards.

The product’s various indicators strictly comply with the new national standard GB 36246-2018 for safety of school grounds. It features a low-VOC, environmentally friendly formulation that is safe and non-toxic, making it suitable for use in primary and secondary schools, kindergartens, and public fitness facilities.

③ Excellent physical performance, making the site more durable.

It boasts superior tensile strength and elongation at break, and after curing, it exhibits excellent toughness, tear resistance, and deformation resistance. It can withstand harsh outdoor conditions—including prolonged exposure to high temperatures, severe cold snaps, and heavy rainfall—without cracking or shedding particles on the surface.

④ Moderate viscosity for convenient and efficient construction.

2200-2400The mPa·s gold viscosity range ensures uniform mixing with EPDM colored granules and black rubber granules, preventing sedimentation and clumping. It is suitable for both manual spreading and mechanical application, making it ideal for a variety of site construction scenarios.

⑤ High adhesion and structural stability

It exhibits extremely strong adhesion to cement and asphalt surfaces as well as various rubber particles. After curing, the bonding layer becomes stable and firm, effectively preventing issues such as blistering, delamination, and particle shedding on the site, thereby significantly reducing subsequent maintenance costs.

⑥ Cost-effective, replacing high-end, expensive adhesives.

Compared to high-end imported yellowing-resistant adhesives, this product matches the performance of premium-grade products yet offers a more competitive price. It strikes the perfect balance between quality and cost, making it the top choice for high-standard outdoor venues at an excellent value.

Before the product is fully cured, it may have a slight odor from the raw materials, which is a normal characteristic of chemical raw materials. Once fully cured, it will be odorless and free of any pollutants, and will not affect the normal use of the site or compliance with environmental protection testing.

1. Outdoor high-standard EPDM colored surface and underlayer construction

2. Highplastic sports surfaces for schools, kindergartens, and parks

3. Laying of breathable plastic running track elastic layer and anti-aging surface layer

4. Renovation and new construction of fitness trails and sports surfaces for long-term outdoor use in environments with high sun exposure.

5. High-quality project with stringent requirements for the site's appearance, color, and aging resistance.

① Campus Premium EPDM Field Project

Several kindergartens and primary schools across China have adopted this product in bulk for their colorful playgrounds. After completion, the playground surfaces exhibit even, bright colors. Even after three years of exposure to outdoor sunlight, there has been no yellowing, fading, or chalking. Both environmental compliance and aesthetic standards have been fully met.

② Outdoor Park Fitness Trail Project

The city’s riverside parks and community outdoor walking paths are constructed using yellowing-resistant adhesive, making them well-suited for environments exposed to year-round high temperatures, intense sunlight, and frequent rainwater immersion. The surfaces remain resilient and stable, with no flaking or cracking, resulting in an extremely high repeat purchase rate among property owners.

③ Overseas high-standard venue export projects

Mass-exported to Southeast Asia and the Middle East—regions characterized by high temperatures and intense sunlight—this product boasts exceptional UV resistance and yellowing-resistant performance, making it perfectly suited for the harsh tropical climate and establishing it as the mainstream adhesive material for premium sports surfaces overseas.

Q1: What is the key difference between yellowing-resistant glue and ordinary 06 and 20 glues?

A: The biggest advantage isUV-resistant, non-yellowing, and age-resistantOrdinary glue is suitable only for sublayers or low-demand surfaces, whereas this glue can be used directly as the top layer. It remains colorfast and does not crumble even after prolonged exposure to sunlight, making it ideal for high-quality, durable outdoor sports surfaces that prioritize both aesthetics and longevity.

Q2: Is glue with an odor not environmentally friendly?

A: It’s not environmentally unfriendly. This product fully complies with the new national environmental standards, and its VOC and heavy-metal content have both passed inspection. Only during the application stage, before it has fully cured, may there be a slight odor from the raw materials; however, once fully cured, the odor completely dissipates. The product is non-toxic and harmless, so you can use it with confidence in school campuses and public spaces.

Q3: Can it be used entirely for the runway surface?

A: Absolutely. This product boasts excellent yellowing resistance and weatherability, making it a specialized adhesive designed specifically for outdoor surface applications. Once formed, it features a beautiful color that remains durable and long-lasting—making it the preferred material for colored EPDM sports surfaces and high-end running track coatings.

Q4: Does the construction have any requirements for the temperature environment?

A: It can be applied at room temperature with stable viscosity and excellent mixing performance. In both highand low-temperature environments, only standard construction precautions are required—no special formulations are needed. It is suitable for most climates across China and overseas regions.

Q5: How should I choose the packaging?

A: For small repairs, sporadic projects, and small-area sites, choose the 20-kg small bucket. For newly built large playgrounds and bulk foreign trade orders, the 200-kg large bucket is the preferred choice—offering better cost performance and ideal for full-container sea freight exports.