Stop eyeballing material orders and hoping you bought enough. CoatCalc is a precision material calculator for surface coating contractors — input room dimensions, substrate condition, and coating system, and it outputs exact gallons of primer, base coat, color flake or metallic pigment, and topcoat using real manufacturer coverage rates + industry-standard waste factors. No more running back to the supplier mid-job or eating $800 in leftover material. ## What's included - **Layer-by-layer calculator** — primer, base coat, broadcast media (flake / quartz), grout coat, topcoat each calculated with correct coverage rate + mil-thickness target - **Manufacturer coverage database** — Penntek, Polytech, Rust Bullet, ArmorPoxy, Sherwin-Williams built in; custom TDS input for any brand - **System support** — solvent-based epoxy, water-based epoxy, polyaspartic, polyurea, single + multi-color metallic, full-flake broadcast, quartz, decorative concrete - **Substrate prep adjustments** — diamond grinding (CSP 2-3) vs shot blasting (CSP 4-5) vs acid etch each have different coverage; porous + green concrete + moisture mitigation factored - **Metallic pigment ratio calculator** — two-tone / three-tone swirl → exact ounces of each metallic per gallon of base; saves 30-40 minutes of math per job - **Per-square-foot cost breakdown** — input supplier pricing once (saved per user) → material cost / sqft, total material cost, margin; underbid-warning if cost seems off vs benchmarks - **Purchase-ready output** — quantities rounded to purchasable units (5-gallon kits, 50-lb bags); ready to text your supplier ## Limitations - **Not a CRM** — calculates jobs; pairs with Jobber / ServiceTitan for customer + scheduling - **Not a full estimator** — material cost only; labor, equipment rental, margin remain in your separate estimating workflow - **Not connected to supplier portals** — you input pricing; no live PO submission (on roadmap) - **Not a moisture meter** — uses your moisture-test result as input; doesn't replace calcium-chloride / RH-probe testing - **U.S.-focused** — metric conversion supported; Canadian + UK + AU coating brands not in default database ## Best fit Surface coating contractors and decorative flooring installers (garage floors, pool decks, commercial epoxy) running 5-50 jobs/month. Especially valuable for newer contractors (years 1-3) who haven't built coverage-rate intuition — one prevented $800-$1,500 over-order pays for the year, and avoiding one $400 emergency supplier run mid-job protects your margin and crew schedule. At $9/mo, the cheapest material-cost insurance in the trade.
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