This engineering manual outlines verified diagnostic workflows, mathematical calculations, and safety clearances for Industrial Floor Epoxy & PU Coating Application: Surface Prep, DFT Testing & Curing. Adheres to national and international building standards including SSPC-SP 13 / NACE No. 6 / ASTM D4541.
Table of Contents
1. Concrete Moisture Vapor Emission Rate (MVER)
Before primer application, concrete slab moisture must be measured using Calcium Chloride dome tests (ASTM F1869). Maximum allowable limit is 3.0 lbs / 1000 sq.ft / 24 hours or < 75% relative humidity via in-situ probes (ASTM F2170).
2. Multi-Layer Application Architecture
- 1. Surface Profiling: Captive shot blasting to achieve Concrete Surface Profile CSP-3 to CSP-4.
- 2. Primer Coat: 100% solids polyamide epoxy primer (100–150 microns WFT).
- 3. Intermediate Screed: Solvent-free epoxy self-leveling resin with quartz aggregate broadcast (2–3 mm).
- 4. Topcoat: Aliphatic Polyurethane (PU) UV-resistant chemical topcoat (75–100 microns DFT).
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