Rubber Binders
Types of Rubber Binders
In-Situ or Pour in Place: Applied outside on job site
Molding Tiles: Prefabricated items with a press
Composition
SBR and/or (80–90%)
- Styrene–Butadiene–Rubber
- Black
- From End-of-Life truck and car tires
EPDM + (10–20%)
- Ethylene propylene diene monomer
- Non-recycled material
- Various colors
Polyurethane Binder
- NCO-terminated polyurethane prepolymer
- 1K: Moisture cure system or with addition of water
In-Situ Playgrounds and Athletic Tracks
Applications
- Children playgrounds
- Squares
- Decorative areas
- Tree surrounding
- Nurseries
Construction Methods
Base options:
- Concrete: More stable support over time, no or less risks of cracks.
- Asphalt: Stable support with good dampening.
- Compacted Stone: Homogeneous mixture compacted to provide an even plane.
Safety Specifications
| Layer | Thickness (mm) | Rubber (parts) | Binder (parts) |
|---|---|---|---|
| Top layer | 10–15 | EPDM 100 | 20–22 |
| Base layer | 10–120 | SBR 100 | 12–17 |
Polyurethane Binder Characteristics
- Moisture curing system (reacts with air humidity)
- Reactivity depends on humidity and temperature
UV Resistant Binder Offering
- Standard: Voramer MR 1045 (aromatic binder)
- Enhanced: Voramer MR 1209 (isocyanate)
- Premium: Voramer MR 1204 (aliphatic prepolymer, UV resistant)
Molding Technology
Applications
- Children playgrounds
- Sport flooring in fitness rooms
- Construction
- Stables
- Rail embedding
- Edging
Process Technology
- Mix rubber granules + binder for 2–3 minutes
- Add water (spray or pour), mix for another 2–3 minutes
- Pour into mold and compress
Cylinder Technology
| Rubber (parts) | Binder (parts) | Water (parts) |
|---|---|---|
| 100 | 7–10 | 0.1–1 |
Flexible Foam Binders
Formulation
- Binder: Voramer MF or RF XXXX (8–15%)
- Foam: Shredded production trim/post-consumer waste (85–92%)
Applications
- Artificial turf shockpad
- Indoor sports floor
- Noise reduction
- Building protection
Wood Binders
Applications
- OSB (Oriented Strand Board)
- Particle Boards
- MDF/HDF
- LDF (Low Density Fiberboard)
Advantages
- Formaldehyde-free
- Low VOC
- 50% lower PMDI loadings than MUF
LDF Board Properties
| Density (kg/m³) | 110 | 140 | 180 |
|---|---|---|---|
| Tensile Strength (kPa) | ≥10 | ≥15 | ≥30 |
| Compression Strength (kPa) | ≥40 | ≥100 | ≥200 |
