DESCRIPTION
EF-275 is a crystal-clear, UV-stable topcoat that seals in your floor's finish and lets you reopen the space the same day.
Polyflow-275 (EF-275) is a solvent-based, two-component, VOC-compliant, aliphatic polyaspartic polyurea coating developed as a UV-stable topcoat for jobs with limited downtime. It is the thin, crystal-clear coat you apply over solid-color coatings and vinyl flake broadcast (chip) systems to seal in the look and protect everything underneath.
As a true aliphatic polyaspartic, EF-275 will not yellow or chalk. It keeps a brilliant, glass-clear high-gloss finish indoors and out, and delivers superior abrasion, chemical, and UV resistance, with just 0.03 g of Taber abrasion loss to shield the color and flake beneath from foot and cart traffic. It is also fast: recoat in 2-4 hours, return foot traffic in 4-8, and vehicle traffic the next day.
EF-275 is tough but flexible. It stretches 40% at break to resist cracking, pulls 5,150 psi tensile, and offers ~0.75 DCOF wet traction for slip resistance. At under 50 g/L VOC it is LEED v4 low-emitting and meets CFIA and USDA requirements for indirect food contact. It is a finish coat, so apply it over a prepared base system rather than directly on bare concrete. It comes crystal clear (tinting is available, though pigmenting can reduce chemical resistance). Because the cure is quick, mix only what you can spread in 20-25 minutes.
Key Features & Benefits
- UV-Stable Clear Finish: Aliphatic polyaspartic chemistry resists yellowing and chalking for a crystal-clear, high-gloss finish that lasts indoors and out.
- Fast Return to Service: Recoat in 2-4 hours and walk on it in 4-8, so you can reopen the space the same day.
- Superior Abrasion & Chemical Resistance: Just 0.03 g Taber abrasion loss protects the color and flake beneath from heavy traffic.
- Built for Flake & Color Systems: The go-to thin clear topcoat over vinyl flake broadcast (chip) floors and solid-color coatings.
- Flexible & Tough: 40% elongation at break resists cracking; 5,150 psi tensile; 175-sec Koenig pendulum hardness.
- Good Wet Traction: ~0.75 DCOF wet for slip resistance.
- Low-VOC & Food-Plant Rated: <50 g/L VOC; meets CFIA and USDA requirements for indirect food contact; LEED v4 low-emitting.
Technical Specifications
- Type: Solvent-based aliphatic polyaspartic polyurea, 2-component
- Solids: 75% by weight
- VOC: <50 g/L (LEED v4 compliant)
- UV Stability: Yes, aliphatic, non-yellowing
- Finish / Gloss: Crystal-clear high-gloss, 89.5 GU @ 60°
- Abrasion (Taber CS-17, 1000 cyc/1000 g): 0.03 g loss (ASTM D4060)
- Elongation at Break: 40% (ASTM D638)
- Tensile Strength: 5,150 psi (ASTM D638)
- Pull-Off Adhesion: >363 psi, substrate failure (ASTM D7234)
- Hardness: Koenig pendulum 175 sec @ 8 mils (ASTM D4366)
- Slip Resistance (DCOF): ~0.75 wet (ASTM E303-93)
- Viscosity: Part A 300-400 cps · Part B 100-150 cps
- Working Time: 20-25 min @ 70°F / 50% RH
- Cure @ 68°F: Recoat 2-4 hrs · Foot traffic 4-8 hrs · Vehicle ~1 day · Full cure ~7 days
- Coverage (per 2-gal kit): Over coating 8 mils, ~400 sq ft · Over vinyl flake 12 mils, ~267 sq ft
- Kit: 2-gallon (3.78 L resin A + 3.78 L hardener B)
- Color: Clear (tintable; pigmenting may reduce chemical resistance)
- Standards: Meets CFIA and USDA requirements for indirect food contact; SCAQMD 304-91
- Application: 10 mm roller / squeegee over a prepared base system, not for bare concrete; apply 50-86°F
- Shelf Life: 1 year unopened (store 59-86°F)
