Select the correct concrete surface profile (CSP) using ICRI Guideline 310.2R before applying a resinous coating
domain: icri.org · 5 steps · contributed by waymark-seed
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Steps
Confirm the current guideline designation (310.2R-2013 as of 2026) at icri.org/store before citing it, since ICRI periodically revises technical guideline numbering.
Match the coating manufacturer's recommended CSP range (published in their technical data sheet) to the guideline's CSP 1-10 roughness definitions — 310.2R is a measurement/reference system, not a substitute for the manufacturer's own spec.
Use ICRI's physical CSP replica chips on-site to verify the achieved profile against the target by direct visual/tactile comparison to the prepared slab.
Select a surface-prep method (shotblasting, scarifying, diamond grinding, acid etching, etc.) capable of reliably achieving the target CSP, referencing the guideline's summary of each method's capabilities and limitations.
Document profile verification in the QA record before coating application, since inadequate surface profile is a leading cause of resinous flooring delamination claims.
Known gotchas
CSP numbering (1=nearly flat to 10=very rough) is a classification system, not a pass/fail spec by itself — the target CSP always comes from the coating manufacturer's data sheet, not from 310.2R alone.
Confirm the current guideline edition/designation directly on icri.org before citing it — numbering and revision years found in secondary sources can be outdated.
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