Durable Polyurethane Adhesives
PU Binder for Wet-Pour Rubber Surfacing
Rubflo is a PU binder supplier providing reliable bonding, flexible application, and practical project support for wet-pour rubber surfacing used in playgrounds, running tracks, sports areas, and recreational spaces.
What is PU Binder?
PU binder is an MDI-based polyurethane adhesive used to bond EPDM and SBR rubber granules in wet-pour rubber surfaces. Our PU binders provide strong adhesion, flexibility, durability, and weather resistance for playgrounds, running tracks, sports areas, and other outdoor spaces. Combined with rubber granules, they help create a seamless, resilient, and long-lasting surface.

Performance Built for Reliable Rubber Surfaces
Rubflo PU Binder helps improve installation reliability, surface stability, and long-term outdoor performance so your rubber surfacing projects can perform better with less maintenance over time.
Strong Bonding
Keeps granules firmly bonded, helping reduce loosening and early surface repairs.
Elastic & Resilient
Helps the surface recover from repeated impact for lasting cushioning and comfort.
Weather Resistance
Maintains reliable bonding performance under changing outdoor conditions.
Long-Term Durability
Helps the bonded surface stay intact through repeated use for a longer service life.
Easy Application
Makes mixing, spreading, and paving easier for more efficient on-site installation.
Consistent Curing
Helps the surface cure properly after paving for firm bonding and less residual tackiness.
PU Binder Specifications & Certifications
Rubflo PU Binder combines reliable bonding, practical application, and durable outdoor performance, with product quality and compliance supported by CE, CNAS, REACH, and SGS certifications.
| Property | Typical Value |
|---|---|
| Component System | 1K / Single Component |
| Recommended Use | Rubber granule surfacing |
| Cure Time | 8–36 h* |
| Application | Manual / Paver |
| Packaging | 20 kg / 200 kg |
| Certificates & Compliance |
CE
CNAS
REACH
SGS |
| Property | Typical Value |
|---|---|
| Component System | 2K / Two Components |
| Recommended Use | Bonding applications |
| Appearance | A / B Components |
| Solids Content | ≥99% |
| Working / Pot Life | <60 min |
| Application | Manual / Mechanical |
| Certificates & Compliance |
CE
CNAS
REACH
SGS |
Where PU Binder Is Used
Rubflo PU Binder is suitable for a wide range of sports and recreational spaces, with bonding performance, curing, and application options adaptable to different surface systems and project requirements.

Running Track
Rubflo PU binder helps form a resilient, tightly bonded track surface that holds up under repeated impact and high-frequency use.
View Running Track Application →
Sports Court
For sports courts, strong granule adhesion supports a firm yet comfortable surface with more consistent performance over time.
View Sports Court Application →
Playground
A flexible polyurethane bond helps keep playground surfacing seamless and cushioned while reducing the risk of premature granule loosening.
View Playground Application →
Gym
Rubflo polyurethane adhesive supports a stable, resilient rubber floor that better handles foot traffic, dropped equipment, and everyday wear.
View Gym Application →
Water Park / Poolside
Reliable outdoor bonding helps rubber surfacing stay secure and durable despite moisture, humidity, and changing weather conditions.

Landscape / Park Trail
For paths and landscaped recreation areas, Rubflo PU binder helps create a comfortable, continuous surface built for long-term outdoor use.
Complete Your EPDM Flooring System
See how Rubflo PU Binder works with EPDM and SBR rubber granules within a typical wet-pour flooring system.
Bonding Component
Coats and bonds rubber granules throughout the surfacing system, helping create a stable, seamless, and durable finished surface.
→A Practical Approach to Yellowing Control
Rubflo provides a more cost-effective approach to yellowing control by combining MDI PU Binder with full-surface protection to help keep EPDM colors brighter for longer and reduce the effects of UV and outdoor exposure, especially on light-colored surfaces.
EPDM granules are evenly mixed with Rubflo MDI PU Binder to ensure consistent bonding throughout the surface.
Why Source PU Binder from Rubflo?
More than a PU binder supplier, Rubflo helps make rubber surfacing projects easier to plan, source, and deliver with confidence.
Backed by 20+ years of industry experience, we help you select the right PU binder for your application, installation method, and project requirements.
Source PU binder, EPDM and SBR rubber granules, and installation tools from one supplier to simplify purchasing and project preparation.
Rubflo provides a practical surface protection solution to help reduce yellowing and keep EPDM colors brighter for longer.
Get practical guidance on mixing, binder ratios, paving, curing, and surface treatment for smoother on-site application.

PU Binder Selection Support
Proven in Projects. Trusted by Customers.
Explore Rubflo PU Binder references worldwide and hear what customers say about working with us.
Frequently Asked Questions About PU Binder
The right PU binder depends on your surfacing system, installation method, site conditions, curing requirements, and project scale. Rubflo can recommend a suitable binder based on your specific application and construction needs.
Yes. Rubflo PU Binder can be matched with EPDM and SBR rubber granules for wet-pour rubber surfacing systems. The suitable binder type and ratio depend on the material, application, and installation conditions.
Rubflo combines PU Binder with a full-surface protective treatment after the EPDM surface has cured. This additional layer helps reduce the effects of UV and outdoor exposure, slow yellowing and fading, and keep colors brighter for longer, especially on light-colored EPDM.
Yes. Our team can provide practical guidance on binder selection, mixing ratios, paving, curing, and protective surface treatment to support smoother on-site installation.
Yes. Rubflo can supply PU Binder, EPDM granules, SBR granules, and installation tools, making it easier to coordinate purchasing and prepare materials for your project.
Contact Us
Share your application, material requirements, and project details with Rubflo. We’ll help you identify suitable materials and system options.