Maverick Performance Solutions

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C04 Product Installation Requirements

C04.04

Polyaspartics and urethane topcoats

The topcoat is the last hour of the job and the only layer the customer ever sees. UPA, RCU, HTU, HWU, UHD, and ESD each carry their own hard limits — speed, thickness, humidity, and technique.

  • Pick the right cure speed for the temperature and the crew
  • Respect the thin-coat limits — thicker is worse on every urethane topcoat
  • Run the product-specific techniques: dip-and-roll, cross-roll, tint rules, grounding

MavSeal UPA (polyaspartic) — the numbers, from the UPA PDS

RequirementValue
Mix ratio1:1 by volume — full kits only, mixed 3 minutes until uniform
Working time @72°F, 20% RHXTRA Slow 2 hr · Slow 70 min · Medium 32 min · Fast 25 min
Working time @72°F, 80% RHXTRA Slow 70 min · Slow 28 min · Medium 17 min · Fast 14 min
Thickness / coverage10–16 mils · 100–160 sq ft/gal (second coat 6–8 mils, max 200 sq ft/gal)
Tie-insDo not exceed 5–10 minutes from one mix to the next; joints as breaks
Second coatAs soon as the first is tack free
TemperatureAir/surface 35–85°F, material 60–85°F — below 60°F use Fast Cure, no exceptions
Moisture in the airSpeeds the cure — humid days shorten everything
Where it goesOver full broadcast (chip, quartz, sand) only — not on smooth floors

MavSeal RCU (rapid-cure polyaspartic) — from the RCU PDS

RequirementValue
Pot life13 minutes — everything staged, crew in position before mixing
SpreadWithin 2 minutes of mixing; back-roll before it tacks (5–7 minutes)
Thickness8–16 mils (100–200 sq ft/gal); self-leveling at 16 mils
Recoat window2–6 hours
Return to serviceFoot traffic 3 hours, full service 24 hours
ConditionsNo direct sun, surface under 95°F, RH 80% max, 5°F above dew point
KitsNever split, never partial
Shelf life6 months — Part A is moisture-sensitive, reseal immediately

The urethane finish coats — HTU, HWU, UHD, ESD

ProductCritical requirements from its PDS
MavSeal HTU (satin, wear filler)Mix ORDER: Wear Filler into Part B, then Part A; 5-min induction. 3–4 mils max — heavier coats blister. 375–500 sq ft/gal. Pot life 60 min. Ambient RH must be 30–70% (moisture-cure — never above 80% or below 25%). Substrate 55–90°F. Recoat 8–24 hr. Isocyanates: respirator and ventilation.
MavSeal HWU (satin topcoat)Mix Part B + tint, then Part C filler, then Part A — one kit at a time. 2–3 mils at 600 sq ft/gal; thicker means bubbles, soft film, gloss variation. Keep filler agitated in the pan. Back-roll perpendicular in a V pattern; a finish roller follows no more than 20 minutes behind. Never roll tacky material. Not over a dark primer in the neutral version.
MavSeal UHD (high-traffic urethane)Dip-and-roll ONLY — the sheet says do not squeegee. 3–4 mils max at ~450 sq ft/gal — it foams thicker. Stir the pan every dip so filler stays suspended. Cross-roll immediately at 90°. Pot life 60 min. Ambient 50–85°F. Over a primer or epoxy system only, never bare concrete. Topcoat epoxy within 24 hours or sand and solvent-wipe. No vehicles for 36 hours.
MavCoat ESD (static-dissipative)Mixed BY WEIGHT: 1.08 lb A + 6.45 lb B + 3.0 lb C + 1 pint MavTints (never white). 2–3 mils at 600 sq ft/gal — thickness IS the electrical rating; thicker or pooled material can fail the ohm spec. All three temps 60–85°F. Copper grounding tape per the sheet, roughly every 1,000 sq ft. One kit at a time.
Why thin coats win on urethane topcoats
RIGHT — 3–4 mils, evenWRONG — piled on thicktight film — cures hard, holds its ratingfoam, blisters, haze — and a failed ratingHTU + UHD max 3–4 mils · HWU 2–3 · ESD 2–3Two thin coats beat one thick one. Every time.
  • Not this

    It's 55° in the plant — Slow Cure is fine if we hustle.

    This

    Below 60°F the sheet orders Fast Cure. Hustle does not change chemistry.

  • Not this

    Roll the UHD a little heavy so we're done in one coat.

    This

    Past 4 mils it foams. Two thin coats per the sheet beat one ruined thick one.

Takeaways

  • Below 60°F, polyaspartic means Fast Cure — the UPA and SLE sheets both order it.
  • MavSeal UPA goes over full broadcast systems only — never as the topcoat of a smooth floor.
  • On urethane topcoats the extra mil is the enemy: HTU and UHD blister or foam past 3–4 mils, ESD loses its electrical rating.

SOPSOP Section 2.7.8 — Field Non-Negotiables

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