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PU Adhesive

High-Performance PU Adhesive for
EPDM Surfacing

Review polyurethane binder options for rubber surfacing. Share the granule type, site conditions and planned installation method with FUXIN to confirm a suitable binder.

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MDI-based binder

MDI-Based Polyurethane Adhesive

Need strong, cost-effective bonding for dark-colored tracks or base layers?
→ MDI-based PU adhesive delivers high strength, REACH compliance, and proven durability — ideal for budget-conscious large projects.

Product Advantages

Safety First

TDI-free, formulated with safer MDI; free MDI content < 0.1% after curing — fully compliant with REACH, RoHS, and other international environmental and health standards.

Superior Bonding

High crosslink density delivers >2.0 MPa adhesion to both EPDM and concrete — remains intact under long-term loading, high-pressure washing, and repeated thermal cycles (no delamination or granule loss).

Efficient Application

Fast initial tack and rapid strength development shorten project timelines; 1K moisture-cure system requires no mixing or metering — simple, fast, and reliable on-site application.

Cost-Effective Performance

Delivers >90% of aliphatic PU performance at a significantly lower cost — ideal for dark-color systems, school tracks, and community sports courts where value and volume matter.

Want to dive deeper into FUXIN's
product advantages?

Talk directly to our EPDM surface experts-get professional support now.

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Figures below are reference values. Ask FUXIN for the current data sheet for the exact material you plan to order.

Technical Specifications

General Properties

Item	Specification
Appearance	Colorless or light yellow transparent liquid; no sediment, no odor
Density (23 °C)	1.05 + 0.05 g/cm³
Viscosity (23 °C)	2400+700 mPa·s
Curing Method	Moisture-curing (single-component, no mixing required)
Service Temperature Range	40°C to +80°C
Packaging	20 kg /200 kg (sealed drums)

Request the current data sheet from FUXIN

Find more technical data sheets in the Downloads section.

Aliphatic binder

Aliphatic Anti-Yellowing PU Adhesive

The Premium Standard for Safety & Aesthetics Zero yellowing for 2+ years on white/light EPDM surfaces; near-odorless, EN 71-3 certified. Ideal for luxury playgrounds, hospitals, and indoor children’s zones.

Product Advantages

Anti-Yellowing Excellence

Pure aliphatic isocyanate structure — zero benzene rings, superior UV resistance. Keeps white and light-colored EPDM surfaces bright and clean for 2+ years, with no yellowing.

Child-Safe & Non-Toxic

Near-odorless during curing and aging; rigorously tested and certified to REACH and EN 71-3 (Toy Safety) standards.

Enhances Color Brilliance

Preserves true color vibrancy of EPDM granules — ideal for bold, light, or custom Pantone® hues. The perfect partner for high-visibility, high-aesthetic projects.

Premium Project Standard

The preferred binder for high-end applications: luxury residential play zones, theme parks, urban plazas, hospitals, and indoor children’s areas — where safety, aesthetics, and longevity are non-negotiable.

Want to dive deeper into FUXIN's
product advantages?

Talk directly to our EPDM surface experts-get professional support now.

Get in Touch Now

Figures below are reference values. Ask FUXIN for the current data sheet for the exact material you plan to order.

Technical Specifications

General Properties

Item	Specification
Appearance	Colorless or light yellow transparent liquid; no sediment, no odor
Density (23 °C)	1.05 + 0.05 g/cm³
Viscosity (23 °C)	2400+700 mPa·s
Curing Method	Moisture-curing (single-component, no mixing required)
Service Temperature Range	40 °C to +80 °C
Packaging	20 kg / 200 kg (sealed drums)

Request the current data sheet from FUXIN

Find more technical data sheets in the Downloads section.

Comparison Table

MDI-based binder

Aliphatic binder

Cost-efficient, high-volume projects

Suitable
Scenepositioning

Premium projects demandingcolor stability &child safety

Dark colors (red, blue, black)
Light colors may yellow overtime

Color
Characteristics

White, pastels, bright & customPantone colors,
Zeroyellowing for 2+ years

TDI free; free MDI <0.1% (REACH, ROHS, EN 71-3)

Composition
Certification

Near-odorless curing, (REACH, ROHS, EN 71-3)

>2.0 MPa (EPDM/concrete) Resists delamination
under load, pressure wash, thermal cycling

Adhesion
Performance

High adhesion with enhanced flexibility &
long-term durability

Single-component, no mixing Fast tack &
strength build-up 40% faster installation

Construction
Characteristics

Single-component user-friendly, ideal for
precision surfacing

School tracks, community courts, base layers

Application
Scenarios

Luxury playgrounds, theme parks, hospitals indoor play zones

High performance at ~90% of aliphatic cost

Evaluation

Premium performance for safety, aesthetics & longevity

Project Cases

Examples of surfacing layouts and applications.

Blog

FAQ

Q: What are the ideal temperature and humidity conditions for applying PU adhesive?

A: Recommended: 10–40°C ambient temperature, substrate dry, and ≤75% relative humidity. For cold conditions (<10°C), pre-warm the adhesive to 25°C to improve flow (avoid open-flame heating).

Q: What’s the open time for MDI vs. aliphatic PU adhesives?

A: SAFIBOND™ MDI-based binder(MDI-based): ~25–35 min at 25°C — fast initial tack, ideal for large-area, high-speed installation.
SAFIBOND™ Aliphatic binder(Aliphatic): ~40–60 min at 25°C — longer working time, perfect for intricate designs or multi-color zones.

Q: What’s the recommended mixing ratio with EPDM granules? How to ensure homogeneity?

A: Typical ratio: 1 part adhesive : 5–7 parts EPDM (by weight). Adjust based on granule size, polymer contentand layer thickness.
Mixing best practice:
① Dry-mix EPDM granules for 2 min;
② Add adhesive gradually, mix ≥3 min;
③ Rest 2–3 min before laying.

Q: How can I verify compliance with REACH, RoHS, EN 71-3?

A: We provide SGS test reports (, including:
• Free MDI < 0.1%
• Full 169-SVHC screening (REACH)
• Heavy metals (Pb, Cd, Hg, etc.) within RoHS & EN 71-3 limits

Q: How to choose between SAFIBOND™ MDI-based binderand SAFIBOND™ Aliphatic binder?

A: Quick Selection Guide
1️ Color? → White / light / multi-color design? → Aliphatic binder
2️ Application? → Kindergartens, hospitals, luxury residential? → Aliphatic binder
3️ Budget & Scale? → Large public projects + dark systems + cost-sensitive? → MDI-based binder

Q: Is SAFIBOND™ compatible with other brands’ EPDM granules?

A: Yes — compatible with most EPDM granules on the market.
For optimal performance & warranty support, we strongly recommend pairing with FUXIN series — crosslink compatibility fully validated.

PU Adhesive

MDI-based binder