Epoxy Flooring Invoice Template — Free Download (2026)

Surface prep method and concrete condition assessment

Epoxy coating failures are almost always caused by inadequate surface preparation, not product failure. Documenting your prep method on the invoice serves two purposes: it shows the client why professional installation costs more than a DIY kit, and it protects you if a coating fails years later for a reason unrelated to your prep. 'Surface prep: diamond grinding with Husqvarna PG 820 planetary grinder, 16-grit tooling, minimum 2 passes to achieve CSP (concrete surface profile) 3–4 per ICRI standards. All dust and debris vacuumed and blown clear. Crack repair: 3 cracks injected with Polyurea crack filler, feathered and sanded flush. Moisture test: ASTM F2170 in-situ RH probe — 3 test locations, all reading below 75% RH (acceptable for this product). Concrete pH: tested normal range. No hydrostatic pressure issues observed.' For shot-blasting on larger commercial jobs: 'Surface prep: steel shot-blasting, Blastrac 1-10DE, single pass over full 4,200 sq ft area. Profile: CSP 4–5. Existing coating (failed urethane) 100% removed. Laitance removed.'

System specification: product brand, coat sequence, and mil thickness

The coating system specification is the technical heart of the invoice. Document each coat individually: 'Coating system: Sherwin-Williams ArmorSeal Tread-Plex system. Coat 1 — Epoxy primer: SW Macropoxy 646, 3–4 wet mils (1.5–2.0 DFT). Coat 2 — Base coat: SW ArmorSeal 650 HS Epoxy, 8–10 wet mils (4–5 DFT), color: SW 1-layer Gray. Full broadcast of 20/40 flint aggregate at 0.5 lb/sq ft into wet coat. Coat 3 — Topcoat: SW Armorfloor 645 Urethane, 3–4 wet mils (1.5–2.0 DFT), semi-gloss finish. Total dry film thickness (DFT): approximately 7–9 mils.' DFT (dry film thickness) matters because wet film thickness is what you apply, but dry film thickness is what remains — solvent evaporates and the number drops. A system with more mils is more durable and more expensive. If a client shops your quote against a competitor's, DFT is often the differentiator neither quote explains.

Aggregate type, size, and broadcast rate

Decorative aggregate — also called flake, chip, or broadcast — is what gives garage floor coatings their texture, slip resistance, and visual appeal. Different products and broadcast rates produce dramatically different results. Document it: 'Decorative broadcast: 1/4" vinyl flake chip, Armor Chip Garage Coating blend — Charcoal/Gray/White/Silver mix (owner approved from physical sample, June 10, 2026). Full broadcast (saturation coat) into wet base coat at approximately 0.5 lb/sq ft. Excess chip removed after cure (sweep + blow-off). Chip is encapsulated by topcoat.' Or for metallic epoxy: 'Metallic pigment: Perma-Armor metallic epoxy, Obsidian blend. Application method: mixed metallic and swirled with notched squeegee and foam roller to create marbled effect — no two installations are identical. Owner reviewed reference photos and approved style before installation began.' The sample/reference approval step is especially important for decorative systems where the exact outcome depends on application technique. Document that the client saw examples and accepted the inherent variability of decorative finishes.

Square footage and area exclusions

Epoxy flooring invoices should specify square footage measured on-site and note any exclusions. 'Total area: 640 sq ft (standard 2-car garage, measured on-site June 9, 2026 at 24×24 feet footprint — actual coated area 576 sq ft after exclusion of 3 floor drains, utility sink base, and water heater base per owner instruction). All measurements confirmed before material ordering.' Exclusions matter for two reasons: they affect material quantities (you're not coating those areas so you don't use product there), and they can affect the finished appearance if the excluded area creates a visible transition line. Note if there are specific areas around garage doors, columns, or wall junctions that required detail work: 'Edge work: cut-in coating at all walls and garage door threshold. Threshold: no cove base — coating terminates at expansion joint at door opening.'

Cure time and use restrictions

Epoxy coatings have meaningful cure timelines that affect when the space can be used, and these should be documented on the invoice so the client knows what to expect and can't claim they weren't warned when they drove their car in the next morning. 'Cure schedule: Coat 1 (primer) — recoat window: 6–24 hours. Coat 2 (base/aggregate) — recoat window: 12–24 hours at 70°F. Topcoat application: June 14, 2026. Light foot traffic: 24 hours after topcoat application (June 15, 12:00 PM). Return vehicle traffic: 72 hours after topcoat (June 17, 12:00 PM). Full chemical cure: 7 days. Do not use floor cleaner or chemicals for 14 days.' Also note temperature restrictions: 'Application temperature: 68°F, relative humidity 45%. Product requires minimum 50°F substrate temperature and no rain/moisture on surface. Garage doors left open for ventilation during and 4 hours after each coat application.' These conditions aren't just disclaimers — they explain why the garage was unusable for part of the project duration and why coating during cold months may not be possible.

Warranty — and what voids it

Epoxy coating warranties require care because the most common failure mode (delamination from moisture or inadequate prep) is something the contractor must protect against, but concrete moisture levels can change after installation. Document your warranty carefully: 'Warranty: 2-year workmanship warranty against delamination and premature failure under normal use conditions. Warranty covers: coating adhesion failure, peeling, and premature wear under normal vehicle and foot traffic. Warranty does not cover: (1) Damage from chemical spills (transmission fluid, battery acid, gasoline — clean immediately if spilled). (2) Hydrostatic pressure events (flooding, high water table changes) — moisture test was performed at installation and was within acceptable range; changes in site drainage or water table after installation are outside warranty scope. (3) Damage from studded tires or heavy equipment. (4) Hot tire pickup — avoid parking a hot vehicle (within 2 hours of driving) on the floor for the first 30 days; hot tires can leave marks in newly cured epoxy.' Hot tire pickup is the most common unexpected failure that clients blame on poor coating quality — it's a well-known characteristic of epoxy coatings that should be disclosed before installation and documented on the invoice.