Category: Materials Explained
Part of the Bedrock knowledge hub.
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Is crumb rubber safe? What the research can tell you
Read what EPA exposure research and California’s 2026 risk assessment found, what they did not assess, and why project testing and local rules still matter.
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Crumb rubber in asphalt: wet process or dry process?
Compare wet and dry rubber addition in asphalt, understand why 30 mesh is not a universal specification, and prepare a powder enquiry for your mix design.
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Running track and playground surfaces: where SBR fits
See where black SBR granules can fit in a layered surface, why track and playground tests differ, and what your installer needs before a material enquiry.
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Crumb rubber infill for artificial turf: what to specify
Understand turf infill, the difference between a grade label and a tested system, and what to confirm before ordering recycled rubber granules.
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20 mesh vs 30 mesh rubber powder: sizes in mm
Compare 20 mesh and 30 mesh rubber powder: 0.85 mm and 0.60 mm reference sieve openings, plus the size-distribution limits to agree before buying.
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Rubber granule sizes: how to choose a grade
Compare Bedrock’s nominal rubber granule sizes and learn why sieve limits, your process and the project specification matter more than a grade label.
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What is crumb rubber?
Understand crumb rubber, the difference between granules and powder, and what to specify before buying recycled tyre material.
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