Materials
Crumb Rubber Manufacturing
How 100% TBR tyre feedstock becomes 10 to 80 mesh crumb rubber — the four-stage ambient grinding line, a mesh selection guide, and where each grade is used.
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Our Material
Crumb Rubber
Sized rubber granulate produced from end-of-life tyres, supplied from 30 to 60 mesh with a certified specification against every grade.
30 – 60Mesh Grades
1.13 – 1.15Specific Gravity
1.5% maxMoisture
Iron & FibreFree
Polymer
Natural Rubber
Specific gravity
1.13 – 1.15
Rubber hydrocarbon
45 Min %
Carbon black content
32 Max %
Acetone extract
14 Max %
Moisture content
1.5 Max %
High-performance recycled rubber granulate
Crumb rubber is the granulated rubber fraction recovered from end-of-life truck, bus and radial tyres. At AP Rubber Group the tyres are shredded, granulated, and passed through magnetic and density separation until the steel and textile fractions are removed, then screened to a target mesh size.
Every grade is supplied against a written specification. The material is a free-flowing, homogeneous black granulate with a specific gravity of 1.13 to 1.15, a minimum 45% rubber hydrocarbon content, and moisture held at or below 1.5%. Ash content is specified per grade, from 8% maximum at 30 mesh to 10% maximum at the finer end.
Manufacturers use it to displace virgin polymer in moulded goods, to modify bitumen for road surfacing, and as the elastic fraction in tiles, mats and sports surfacing. Because it is recovered rather than compounded from new feedstock, it carries a materially lower embodied carbon cost than the virgin rubber it replaces.
Available grades
Four screened grades, each with its own data sheet. Custom particle sizes are available against specification.
30 Mesh · 595 µm sieve
Photographed range: 0.25 mm · 0.3 mm · 0.425 mm · 0.6 mm · 2.0 mm
30 Mesh
The coarsest screened grade. Used where bulk elasticity matters more than surface finish — moulded goods, paver blocks, shock-absorbent underlays and industrial flooring.
- Sieve passing 30 mesh (595 micron)
- 95 Min%
- Ash content
- 8 Max%
- Data sheet
- AP/QA/TDS/01
40 Mesh
A mid-range granulate suited to sports surfacing, playground infill, rubber flooring and safety matting, where resilience and a consistent particle size are both required.
- Sieve passing 40 mesh (400 micron)
- 85 Min%
- Ash content
- 9 Max%
- Data sheet
- AP/QA/TDS/02
50 Mesh
A finer granulate for applications needing a smoother finished surface — modified bitumen, sheet goods and moulded products with a tighter surface tolerance.
- Sieve passing 50 mesh
- 80 Min%
- Ash content
- 10 Max%
- Data sheet
- AP/QA/TDS/03
60 Mesh
The finest crumb grade, bordering on powder. Used in rubber compounding, coatings and adhesives where dispersion into the host matrix is the limiting factor.
- Sieve passing 60 mesh (250 micron)
- 90 Min%
- Ash content
- 10 Max%
- Data sheet
- AP/QA/TDS/04
Grade comparison
Typical properties — all grades
Where Crumb Rubber is used
Enhancing performance across industries.
Rubberized Asphalt
Flexible, crack-resistant road surfacing
Rubber Flooring
Shock-absorbent gym and industrial floors
Playground Turf
Safety infill for play and sports surfaces
Cow Mats
Cushioned, non-slip matting for animal stalls
Moulded Products
Tiles, pavers and moulded rubber goods
Reclaim Rubber
Feedstock for reclaimed rubber compounds
How it is made
- 1
End-of-life tyres
Truck, bus and radial casings are received, inspected and sorted.
- 2
Shredding
Casings are reduced to chip for downstream granulation.
- 3
Granulation
Chip is milled to granulate and screened toward the target mesh.
- 4
Steel and fibre separation
Magnetic and density separation strip the steel and textile fractions.
- 5
Screening
Material is classified across 30, 40, 50 and 60 mesh cuts.
- 6
Quality check
Each batch is tested to ASTM D-297, D-1817 and D-5644 before release.
Why choose APR Crumb Rubber
Circular by Nature
Turning end-of-life tyres into valuable resources
20+ Years
of recycling excellence
Global Supply
Serving customers worldwide
Advanced Processing
Consistent quality through modern technology
Trusted Partner
Built on quality, reliability and commitment
Frequently asked questions
What is crumb rubber?
Crumb rubber is granulated rubber recovered from end-of-life tyres. The tyre is shredded and milled, the steel and textile are separated out, and the remaining rubber is screened to a defined particle size. AP Rubber Group supplies it from 30 to 60 mesh.
What grades and mesh sizes are available?
Four screened grades: 30 mesh, 40 mesh, 50 mesh and 60 mesh, each covered by its own technical data sheet. Custom particle sizes can be produced against a written specification.
What feedstock is used?
Truck, bus and radial (TBR) tyre casings. TBR carries a higher natural rubber content than passenger car tyres, which is what allows a higher-quality crumb.
Is the material free of steel and fibre?
Yes. Every data sheet specifies a free-flowing, homogeneous black rubber powder devoid of iron, steel and fibre. Magnetic and density separation stages remove both fractions before screening.
What is the ash content?
Ash content is specified per grade: 8% maximum at 30 mesh, 9% maximum at 40 mesh, and 10% maximum at 50 and 60 mesh, all tested to ASTM D-297.
Can I request a sample before ordering?
Yes. Samples are available against a stated grade and intended application. Contact the team with your target specification and we will send material and the corresponding data sheet.
Ready to source crumb rubber?
Send us your target grade, volume and application. We will come back with pricing, the matching data sheet and a sample where useful.
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