PP-CF
Polyurea Crack Filler
Fast-setting, two-part hybrid polyurea for concrete repair and rebuilding. Self-leveling, self-priming, and ready for vehicle traffic in 30 minutes.
Pro Tip — Large Voids & Spalls
For larger repairs, add clean, dry sand or pea gravel to the mixed product to extend volume and reduce material cost. Mix sand in after combining Parts A and B, working quickly within the pot life window.
Before opening any material, confirm that ambient and substrate conditions fall within acceptable ranges. PP-CF will not perform correctly if applied outside these parameters.
Do Not Apply If…
- Substrate moisture exceeds 4% — product will not bond properly
- Substrate is below 50°F or above 86°F
- Substrate temp is within 5.5°F of the dew point
- Exterior use at ground level — avoid this application
AMechanical Profile
Use a diamond grinder with 30-grit or coarser tooling, BLASTRAC shot blaster, or sand blasting to open the concrete surface and establish a mechanical profile. This step is critical for adhesion.
BClean the Surface
Remove all dust, debris, oil, grease, and fats. Any oil or fat contamination must be eliminated before application — these will cause adhesion failure. Water blasting is also acceptable for general cleaning.
CBlow Out Cracks
Use compressed air to blow out loose concrete, dust, and debris from cracks and control joints. Debris in cracks will reduce material penetration and bonding depth.
DPrime (If Required)
PP-CF is self-priming on properly prepared concrete. However, if the substrate is highly porous, prime and allow to dry fully before application. Confirm concrete strength meets the 25 MPa (3,625 PSI) requirement.
Prep is Everything
PP-CF is self-priming, but that doesn't replace proper surface prep. Inadequate mechanical profiling or contamination left behind is the #1 cause of delamination. Grind first, clean second, apply third — no shortcuts.
Mix Ratio
By Volume: 1:1 (Part A : Part B)
By Weight: 100:118 (Part A : Part B)
Mixing Procedure
- Mix each component separately before combining
- Pour Part B into Part A — not the other way around
- Mix together for no more than 30 seconds
- Only prepare what you can apply within pot life
Pot Life: 2–3 Minutes
Once mixed, you have just 2–3 minutes at 77°F before the material begins to set. In warmer conditions, pot life shortens. Work in small batches and do not mix more than you can apply immediately.
Temperature Affects Pot Life
Higher temps = shorter pot life. In hot weather (85°F+), pre-condition material in a cooler environment and work in smaller mix batches to maintain workability.
Pour & Fill
Pour and apply the mixed PP-CF directly into the prepared crack, joint, or spall area. PP-CF is self-leveling — it will flow into low spots and settle without requiring extensive tooling. For vertical repairs or step rebuilding, you may need to use a form to contain the material while it sets.
Filling Control Joints
PP-CF is rated for non-moving control joints only. Do not use in expansion joints or anywhere movement is expected. Pour slowly to allow material to penetrate the full depth of the joint before it begins to gel.
Overfilling & Grinding
For flush repairs, slightly overfill the area. Once fully cured (10–15 min), grind flush with a diamond grinder or angle grinder. Hard dry occurs in 5–10 minutes — wait for a full cure before grinding.
Grind if needed
Foot Traffic OK
Forklift Traffic
Coating Over PP-CF
When using PP-CF as part of a coating system (e.g., prior to polyurea or epoxy topcoat), allow full cure and verify flush finish. Any high spots should be diamond-ground flush before topcoat application to avoid telegraphing through the coating system.
Equipment Cleaning
Clean all tools and application equipment immediately with an appropriate solvent cleaner. Once PP-CF hardens, it can only be removed mechanically — solvents will not work on cured material.
Splatter Cleanup
If uncured product splatters on unintended surfaces, wash immediately and thoroughly with hot soapy water. Act fast — you have only a few minutes before it begins to harden.
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength | 4,500–4,800 PSI | ASTM D638 |
| Elongation | 6–8% | ASTM D638 |
| Bond Strength | 1,900–2,300 PSI | ASTM D4541 |
| Compressive Strength | 5,600 PSI | ASTM C109 |
| Hardness (Shore D) | 68–72 | ASTM D2240 |
| Density — Mix | 1.11 kg/L | @ 73°F / 50% R.H. |
| Viscosity — Mix | 15–30 cps | @ 77°F (25°C) |
| Solids Content | 98% | VOC Compliant |
| Shelf Life | 12 months (unopened) | Store 50–89°F, dry, no direct sunlight |
| Kit Size | 2 US gal (7.57 L) | Part A: Black / Part B: Amber |
(NIOSH/MSHA Approved)
Skin & Eye Contact
- Skin: Wash with soap and water immediately. Prolonged contact may cause irritation or sensitization.
- Eyes: Rinse continuously with water for at least 15 minutes. Seek medical attention.
- Remove contaminated clothing; clean before reuse.
Inhalation & Sensitization
- Components A and B contain toxic ingredients. Avoid breathing vapors.
- This product is a strong sensitizer — repeated exposure can cause sensitization.
- If inhaled, move victim to fresh air immediately. Consult a physician.
Always Reference the SDS
This guide covers application-level safety reminders only. Always consult the full Safety Data Sheet (SDS) for complete hazard information, first aid measures, and disposal requirements before working with PP-CF.
Storage Requirements
- Store between 50°F and 89°F (10°C – 32°C) in original, factory-sealed containers
- Keep in a dry location, away from direct sunlight
- Keep away from heat sources and fire hazards
- Shelf life is 12 months in unopened containers — label kits with receipt date
- In cold weather, pre-warm components to room temperature before use to reduce viscosity and improve flow
