CreteFill Pro 85 is a polyurea joint filler that protects control joints and random cracks in interior concrete floors from chipping and spalling. Its slightly flexible formula allows for small slab movement while staying strong enough to support joint edges under heavy loads. It’s 100% solids, so it won’t shrink as it cures, and it returns floors to service in one hour. It also polishes without smearing, making it a strong fit for polished concrete.
CreteFill Pro 85
Joint Filler
Sizes:
10 gal Kits, 22 oz Cartridges,
Coverage Rates:
Varies by joint size. See calculator below.
Dilution Ratio:
1:1 (A:B) – Do Not Thin
Quick Links & Tools
Protects Joint Edges
Strong enough to protect vertical joint edges from chipping and spalling under extreme loading, yet flexible enough to allow small slab movement.
Won't Shrink
The 100% solids polyurea formula doesn't shrink as it cures, so the joint stays completely filled.
Back in Service in 1 Hour
Tack free in 10 to 12 minutes and ready for foot and vehicle traffic in one hour, so floors don't stay down for long.
Polishes Clean
Shaves flush and polishes without smearing, with minimal to no staining on the surrounding concrete.
Handles Tough Conditions
Moisture insensitive and flexible in cold temperatures, with an application range of 20 to 135°F. That makes it a strong fit for freezers, cold storage, and other demanding environments.
Meets Food Safety and VOC Standards
Meets USDA and FDA requirements and California VOC and AQMD requirements, and contributes to LEED credits. That matters for food processing, bottling, and other regulated facilities.
For full application instructions, view the Technical Data Sheet (TDS).
When should joints be filled on a new slab?
The recommended window is 4 to 6 months after slab placement, once most shrinkage has occurred. Filling at 28 days is too early for long-term adhesion. Early installation is possible, but joints should be protected from heavy construction traffic, and some separation may occur as the slab shrinks. Even when separated, the filler continues to transfer loads across the joint and help prevent spalling.
Can CreteFill Pro 85 be used in expansion joints or moving cracks?
No. It’s slightly flexible to handle small slab movement in control joints, but it isn’t designed for expansion joints or cracks with ongoing movement.
Can it be installed in damp joints?
Yes. It’s moisture insensitive, so joints can be damp as long as there’s no standing water. For the best adhesion, dry joints are still recommended. It shouldn’t be used to seal cracks under hydrostatic pressure.
Can it be installed in cold environments like freezers?
Yes. It can be applied at temperatures from 20 to 135°F and stays flexible in the cold. In cold weather, slowly bring the product up to at least 70°F before use, and use a heater when needed.
Will CreteFill Pro 85 change color over time?
UV exposure may cause some discoloration, but it doesn’t affect the filler’s physical properties. It’s available untinted or in standard and special colors to match the floor.
Why choose a polyurea filler over epoxy?
Polyurea stays flexible, including in cold temperatures, and returns the floor to service in one hour. That makes it a better fit than rigid epoxy fillers for floors with heavy traffic, small slab movement, or tight schedules.
Should I use cartridges or 10-gallon kits?
Cartridges are best for smaller jobs and repairs. For larger projects, 10-gallon kits with a metered 1:1 pump are faster and more efficient.
Coverage Calculator
Calculate Your Product Needs
Coverage Rates: 1,500–2,000 ft2/gal (37–50 m2/L)
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Coverage estimate based on the selected area and RetroGuard coverage rate.
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