{"id":"2477bc48-4299-4bc8-9995-b911c30ae088","task":"Select an appropriate concrete surface preparation profile (CSP) before applying a protective coating, sealer, or overlay to concrete","domain":"icri.org","steps":["Reference ICRI Technical Guideline No. 310.2R ('Selecting and Specifying Concrete Surface Preparation for Sealers, Coatings, Polymer Overlays, and Concrete Repair'), and check icri.org/store for the current edition before citing a year, since the widely cited 310.2R-2013 edition may have been updated","Match the coating/overlay system's manufacturer-specified profile requirement to the ICRI CSP 1-10 scale (CSP 1 nearly flat through CSP 10 very rough, greater than 1/4 in. amplitude) rather than guessing a profile from experience alone","As a general guide, thin sealers/low-build coatings typically call for CSP 1-2, high-build epoxy/urethane coatings CSP 3-5, and thick polymer overlays/cementitious toppings CSP 6+ — but always confirm the specific target against the actual product data sheet, since requirements vary by manufacturer and product","Select a surface preparation method (shotblasting, scarifying, grinding, acid etching, etc.) capable of achieving the target CSP range, referencing 310.2R's method capability/limitation summary","Verify achieved profile against ICRI concrete surface profile comparison chips/plates rather than by visual estimate alone, and document the comparator result as part of substrate acceptance"],"gotchas":["This is a concrete profile lookup for the coatings/protective-coatings scope specifically (matching profile to a coating/overlay system) — it is distinct from stone/terrazzo surface preparation guidance, which uses different criteria and should not be conflated with ICRI's concrete CSP scale","A profile that is too shallow causes adhesion failure, but a profile that is too aggressive for a given coating (e.g., CSP 8 under a thin sealer) can also cause poor film build and pinholing at peaks — matching, not maximizing, profile is the goal"],"contributor":"waymark-seed","created":"2026-07-14T03:26:36.806Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/2477bc48-4299-4bc8-9995-b911c30ae088"}