Smith’s Poly PCF-45 — Concrete Crack Filler & Patch

Smith’s Poly PCF-45 is a fast-setting, low-viscosity 2-component polyurethane for filling cracks, spalls, pop-outs, holes, and voids in concrete — the repair step that gets a floor ready for polishing or coating. Its low viscosity lets it penetrate everything from hairline cracks to deep voids (extended with sand), and it cures fast enough to grind in as little as 15 minutes and take heavy traffic within an hour. A convenient 1:1 mix, no primer needed.

Call for pricing and availability, or request a quote — you’ll talk to a real surface-prep expert, not a call center — fast answers and real recommendations.

Key Features

• Fills cracks, spalls, pop-outs, holes, and voids in concrete
• Fast return to service — grind in 15–60 minutes; heavy traffic in ~1 hour
• Low viscosity — penetrates hairline cracks; extend with sand for deep repairs
• 1:1 mix ratio — easy to measure and mix; no primer needed
• Tenacious bond to prepared concrete (650 psi — the concrete fails first)
• Chemical- and impact-resistant with good load transfer
• Feather edge to any depth (with aggregate extension)
• Interior/exterior, above or below grade — even freezer/chiller floors and radiant-heat floors
• Doubles as a pit grout for polished concrete

What It’s For

• Crack filling — static, non-moving cracks
• Patching — spalls, pop-outs, gouges, holes, and surface imperfections
• Pit grout for the concrete polishing process
• Rebuilding control-joint walls
• Repairs before coating — patch, then apply a Smith’s epoxy system (surface diamond-ground first)
• Freezer/chiller floors, suspended decks (parking, bridges, catwalks), radiant-heat floors.

Fast Return to Service

The big advantage of PCF-45 is speed. With a 4-minute pot life it sets fast, and you can diamond grind it smooth in as little as 15–60 minutes and put heavy traffic on it within an hour. For contractors, that means repair, grind, and keep moving — no waiting overnight for patches to cure. Full chemical resistance develops over 2–3 days

Specifications

• Type: 2-component polyurethane, 1:1 mix by volume
• Color: Light Beige (accepts Smith’s ISC colorant at 5%)
• Pot life: ~4 minutes (72°F / 50% RH)
• Grind: once cured hard (dry grind ~15–60 min)
• Heavy traffic: ~60 minutes
• Hardness: 64 Shore D
• Kit sizes: 1-quart and 1-gallon kits
• Shelf life: 2 years unopened; 1 month once opened

Frequently Asked Questions

What’s it for? Filling cracks, spalls, and voids in concrete, and as a pit grout for polished concrete.

How fast can I grind it? In as little as 15–60 minutes once cured; heavy traffic in about an hour.

Does it need a primer? No — no primer necessary.

Can I use it on moving joints? No — it’s for static cracks; moving joints need a flexible joint filler.

How is it sold? Available in a 1-Quart or 1-Gallon Kit

Order Smith’s Poly PCF-45 Today

Call (815) 941-4800 x 1 or fill out our contact form. See our industrial coatings, Smith Paints, and chemicals.

Item #’s:

• 1 Quart Kit – SCS-PCF45-32kit
• 1 Gallon Kit – SCS-PCF45-128kit