Resilience
The rubber-granule structure creates controlled elasticity beneath the upper sports surface.
Sport Floor resilient base · SBR + PU binder · running track & sports systems
Rubberized PU Base Layer for Resilient Sports Flooring & Running Tracks
Sport Floor manufactures Rubberized PU Base Layer for compatible sports-flooring and running-track systems where a resilient rubber-granule base is required beneath the upper polyurethane or EPDM layers.
The layer combines compatible rubber granules with polyurethane binder to create a flexible, shock-absorbing foundation inside the flooring system. It is not the final wearing surface; it is the resilient body beneath the visible sports layer.
Sport Floor manufactures its polyurethane materials using German raw materials within the applicable formulations and supplies the rubberized base as part of a wider B2B material route for contractors, distributors, importers and international projects.
Sport Floor ManufacturedPart of the Sport Floor polyurethane sports-flooring product family.
German Raw MaterialsGerman raw materials are used within the applicable polyurethane formulation.
SBR + PU System RoleDesigned as the resilient rubberized layer inside compatible systems.
Direct Export SupplyAvailable to contractors, distributors, importers and international projects.
What is a Rubberized PU Base Layer?
A bonded rubber foundation that gives the sports surface resilience before the finish is applied
Rubberized PU Base Layer is a resilient layer formed from compatible rubber granules bound with polyurethane. It is installed as part of a multi-layer sports-flooring system where the project requires cushioning, thickness build-up and a flexible base beneath the final PU or EPDM surface.
In many track and poured-rubber systems, SBR granules are used in this lower resilient layer because they provide an efficient way to build thickness and elasticity. The upper wearing layers are then selected separately according to the required system, color, UV exposure and sport.
Sport Floor does not treat this as an isolated “rubber mix.” The base layer is selected together with the primer below it, the binder chemistry, rubber granule size, required thickness, pore sealer or intermediate layers and the final wearing surface above.
Creates a resilient bonded rubber layer within compatible sports-flooring systems.
Supports shock absorption and controlled flexibility.
Can be used as a base beneath compatible PU, spray or EPDM upper layers.
Commonly associated with SBR + PU binder in running-track and wet-pour constructions.
Uses German raw materials within the applicable Sport Floor PU formulation.
Available individually or as part of a complete Sport Floor material package.
What the layer contributes
The base layer carries more than thickness
Its job is to create the resilient foundation that supports the performance layers above.
Shock Absorption
The layer helps the complete system absorb impact and reduce the rigid feel of concrete or asphalt.
Thickness Build-Up
Rubberized bases can efficiently build system thickness without making every millimetre from dense upper PU material.
System Foundation
It creates a stable resilient base for compatible pore sealer, self-leveling PU, spray coat or EPDM layers.
Material Efficiency
Using SBR in the resilient base can provide a commercially efficient structure while premium materials are concentrated in the visible upper layers.
System Flexibility
The same base concept can support different compatible sports systems depending on the upper build-up.
On-site application
Rubber granules and PU binder become one resilient installed layer
The selected rubber granules are mixed with the compatible Sport Floor polyurethane binder according to the current product and system specification. The mixture is then spread, levelled and compacted to the required system thickness over the prepared and primed substrate.
Uniform binder distribution is important because dry zones, excessive binder, inconsistent mixing or variable thickness can affect the behavior of the final layer. This is why the base should be installed from a defined material schedule rather than by visual approximation.
After the layer reaches the condition required by the system, compatible upper materials can be installed according to the selected track, wet-pour or sports-flooring build-up.
Mixing ratio belongs to the product and system
Use the current Sport Floor TDS and system specification rather than copying a binder-to-rubber ratio from another manufacturer.
Where it sits in the build-up
Primer below — rubberized base in the middle — performance surface above
The base layer belongs in the middle of the flooring system. It normally follows the compatible primer and precedes the denser or visible layers that deliver final surface texture, color and wear performance.
In a Sandwich running track, for example, a resilient SBR/PU base can support pore sealer and denser polyurethane layers before the final EPDM wearing surface. In a Spray Coat system, the resilient base supports the spray-applied wearing construction above.
The exact materials, thicknesses and sequence should follow the selected Sport Floor system and project specification.
Typical applications
One resilient base concept across multiple sports-flooring systems
Sandwich Running Tracks
Resilient SBR/PU base beneath sealed and dense polyurethane layers with a compatible EPDM wearing surface.
Spray Coat Tracks
Flexible rubber-granule base supporting the spray-applied wearing construction.
Wet-Pour Systems
Compatible rubberized base construction for systems requiring a resilient lower layer below colored rubber or PU surfaces.
Outdoor Sports Courts
Can form part of compatible resilient court systems where a rubberized construction is specified beneath the upper sports layer.
Jogging Tracks
Useful in compatible recreational and training surfaces requiring a resilient rubber base.
Multi-Purpose Areas
Suitable where the approved system uses a bonded rubber layer to provide resilience beneath the finished sports surface.
German raw-material advantage
A resilient rubber layer built around Sport Floor PU chemistry using German raw materials
The rubber granules provide the resilient structure; the polyurethane binder is what holds that structure together. Binder formulation therefore matters to the complete layer.
German PU Raw Materials
Sport Floor uses German raw materials within the applicable polyurethane binder and system formulations.
System-Level Manufacturing
Sport Floor manufactures the surrounding PU products, allowing the rubberized base to be specified inside a complete material family.
Direct International Supply
Buyers can source binder, SBR/EPDM, base-layer materials and the following PU system components through one commercial route.
Rubberized base vs elastic PU cushion
Two resilience strategies — different material structures
| Selection point | Rubberized PU Base Layer | PU Elastic Cushion Layer |
|---|---|---|
| Material structure | Rubber granules bound with compatible polyurethane. | Elastic polyurethane cushion material without the same rubber-granule base structure. |
| Typical use | Running tracks, wet-pour and resilient rubberized systems. | Seamless cushioned PU sports-flooring systems. |
| Thickness build-up | Efficient route for building resilient thickness using rubber granules. | System-specific elastic polyurethane layer. |
| Upper layers | Can receive pore sealer, dense PU, spray coat or compatible surface layers. | Typically receives compatible self-leveling and top-coat layers. |
| Product page | Current product | PU Elastic Cushion Layer |
SBR vs EPDM in the base
Use the right rubber for the right layer
SBR Base Layers
SBR is commonly selected for buried resilient base layers because it provides an efficient way to build elasticity and thickness.
EPDM Visible Layers
EPDM is commonly selected for colored visible surfaces where appearance and outdoor exposure matter.
System-Specific Choice
Granule type, size and layer position should follow the approved sports-flooring build-up rather than a generic rule.
Application workflow
From loose rubber granules to a compact resilient base
Confirm the System
Identify the exact running-track, court or wet-pour system before calculating materials.
Prepare & Prime
Ensure the substrate is sound, clean and primed with the correct Sport Floor primer route.
Select Rubber Granules
Confirm SBR or EPDM, particle size and total resilient-layer thickness.
Mix with PU Binder
Use the current Sport Floor binder ratio and mixing procedure for the actual product supplied.
Spread & Compact
Install the mixture evenly to the specified layer thickness using the approved project method.
Continue the System
Apply the compatible pore sealer, self-leveling, spray or surface layers after the base is ready.
Technical product data
Use current Sport Floor documentation for the exact material package supplied
Do not copy thickness, binder ratio, density, cure time or consumption from another brand. These values depend on the Sport Floor product, granule type and selected system.
| Item | Sport Floor Rubberized PU Base Layer | Buyer relevance |
|---|---|---|
| Product Category | Rubber-granule resilient base layer bound with polyurethane. | Defines its role beneath upper sports-flooring layers. |
| Typical Rubber | Compatible SBR or other specified rubber granules according to the system. | Granule type affects cost, resilience and system design. |
| Binder | Compatible Sport Floor polyurethane binder according to the selected system. | Controls the cohesion of the resilient layer. |
| Raw Materials | German raw materials used within applicable Sport Floor PU formulations. | Key product-quality differentiator. |
| Granule Size | Confirm against the selected Sport Floor system. | Influences packing, texture and binder demand. |
| Binder Ratio | Use the current Sport Floor TDS and system specification. | Product- and granule-specific; do not copy competitor ratios. |
| Layer Thickness | Defined by the selected sports-flooring system and project specification. | Directly affects material quantity and floor response. |
| Consumption | Calculate from area, thickness, granule specification and current product data. | Required for accurate BOQ planning. |
| Working / Cure Time | Follow current Sport Floor technical data and site conditions. | Temperature and humidity influence practical installation timing. |
| Following Layer | May include pore sealer, self-leveling PU, spray coat or compatible EPDM/PU surface. | Connects the base to the complete system. |
| Packaging | Confirmed in the current commercial offer. | Important for pallet and export planning. |
| Storage / Shelf Life | Follow the current product labels and Sport Floor TDS/SDS. | Important for distributors and international shipments. |
Need the current material schedule?
Send your system, area, thickness and destination to
info@sportfloor-m.com
for current TDS, SDS and commercial information.
Common specification mistakes
The base layer should be engineered as part of the system — not mixed by habit
Guessing the Binder Ratio
Binder percentage should follow current Sport Floor data, granule size and system requirements.
Using the Wrong Granule
Rubber type and size influence packing, resilience, binder demand and compatibility with the upper system.
Variable Thickness
Uneven base thickness can change floor response and create problems for the layers above.
Ignoring Substrate Moisture
A resilient base should not be used to cover an unresolved moisture or adhesion problem beneath the system.
Skipping Pore Treatment
Some systems require pore sealing or other intermediate treatment before dense PU layers are installed.
Buying by Rubber Price Alone
The real system cost includes granules, binder, primer, upper layers, installation method, documentation and material compatibility.
Manufacturer + supplier + exporter
Source the resilient base with the materials around it
Sport Floor can supply the rubberized base layer together with the compatible primer, binder, SBR/EPDM, pore sealer and upper polyurethane materials required by the selected project.
Running-Track Contractors
Material packages for compatible Sandwich, Spray Coat and related resilient track systems.
Sports Flooring Installers
Rubberized base materials for compatible resilient courts and multi-purpose systems.
Distributors & Importers
Manufacturer-direct supply of polyurethane and rubber materials for international markets.
Project Procurement
BOQ-based supply of rubber granules, binder and connected system materials.
Request an accurate B2B quotation
Send the system details that determine the real base-layer quantity
Application
Running track, wet pour, sports court, jogging track or another compatible resilient system.
Total Area
Provide the total project square metres.
Layer Thickness
State the specified resilient-base thickness where already defined.
Rubber Type
Specify SBR, EPDM or the required project granule.
Granule Size
Provide the requested size range where available.
Selected System
Sandwich, Spray Coat, Wet Pour, Rubberized PU or another approved build-up.
Destination
For export, provide country, city and preferred port or delivery point.
Documents
List TDS, SDS or project-submittal requirements.
Build the complete system
Continue from the base layer to binders, granules and upper PU layers
Rubberized PU Base Layer FAQ
Questions contractors and buyers ask before ordering
What is a Rubberized PU Base Layer?
It is a resilient layer made from compatible rubber granules bound with polyurethane and installed beneath the upper layers of a sports-flooring or running-track system.
Is SBR used in the rubberized base layer?
Yes. SBR is commonly used in compatible resilient base layers because it can efficiently build thickness and elasticity beneath the final sports surface.
Can EPDM be used?
EPDM can be used in compatible rubberized systems where the project specification requires it, although visible colored EPDM is more commonly associated with upper surface layers.
What is the difference between Rubberized PU Base Layer and PU Elastic Cushion Layer?
The rubberized base uses rubber granules plus PU binder. The elastic cushion layer is a different polyurethane cushioning product. Both add resilience but use different material structures.
Is this layer used in Sandwich running tracks?
Yes. A resilient SBR/PU base is a common structural element in compatible Sandwich running-track systems.
Is this layer used in Spray Coat tracks?
Yes. Compatible Spray Coat systems commonly use a resilient rubber-granule base beneath the spray-applied wearing layer.
Does Sport Floor manufacture the PU materials used in this system?
Yes. Sport Floor manufactures its own polyurethane sports-flooring materials and can supply the base-layer components as part of a wider material package.
Does Sport Floor use German raw materials?
Yes. German raw materials are used within the applicable Sport Floor polyurethane formulations.
What binder ratio should be used?
Use the current Sport Floor TDS and selected system specification. The correct ratio depends on the product, rubber type, granule size and application.
What thickness should the layer be?
The required thickness depends on the selected Sport Floor system and project specification. Do not copy a generic thickness from another manufacturer.
Can Sport Floor supply SBR and PU binder together?
Yes. Sport Floor can review supply of compatible SBR granules, PU binder and the additional system materials required by the project.
Can Sport Floor export the complete package?
Yes. International contractors, distributors, importers and project buyers can request direct material supply at info@sportfloor-m.com.
Can I request TDS and SDS?
Yes. Request the current technical documents at info@sportfloor-m.com and use the latest issued Sport Floor data for approval and installation.
Sport Floor PU manufacturer · German raw materials · global supply
Build the resilience into the base — then build the performance layers above it.
Send the application, area, rubber type, granule size, base-layer thickness, selected system and destination. Sport Floor can quote Rubberized PU Base Layer materials individually or prepare a wider compatible running-track or sports-flooring material package.