Alchemy AP Lift 430 – 3 lb Polyurethane Concrete Raising Foam Chemical Set (A & B)
The Alchemy AP Lift 430 3 lb Concrete Raising Foam Chemical Set is a high-performance two-component polyurethane system engineered specifically for concrete lifting, slab stabilization, void filling, and geotechnical applications. Designed for use with professional plural-component spray foam and injection equipment, AP Lift 430 delivers predictable expansion characteristics and structural support for lifting and leveling sunken concrete surfaces.
This closed-cell polyurethane formulation is commonly used to raise sidewalks, driveways, warehouse floors, pool decks, roadways, airport pavements, and other concrete structures. Its lightweight yet durable composition helps restore concrete surfaces while minimizing disruption and downtime compared to traditional replacement methods.
Engineered for Concrete Lifting Applications
AP Lift 430 is specifically formulated to provide controlled expansion and lifting force for precision slab leveling and concrete rehabilitation projects. The foam expands beneath the slab to fill voids and restore support while minimizing additional weight on underlying soils.
3 lb Density Structural Foam Performance
The 3 lb density formulation provides an excellent balance of expansion, compressive strength, and long-term durability. Once cured, the closed-cell foam resists moisture intrusion and supports stabilized load-bearing applications.
Void Filling & Soil Stabilization
In addition to concrete raising, AP Lift 430 is effective for filling washouts, sinkholes, erosion voids, and weak soil conditions. The expanding foam helps improve structural support beneath concrete slabs and other infrastructure.
Compatible with Professional Injection Equipment
This two-component A-side and B-side chemical system is designed for use with professional two-component proportioners with material heaters, transfer pumps, heated hose systems, and spray foam injection equipment, such as the MixMaster Pro slab lifting gun or a PX-7 slab lifting gun.
Applications
- Lifting and jacking concrete slabs.
- Stabilizing soil.
- Fracture grouting.
- Filling voids.
- Concrete slab foundation repair.
Advantages
- Unconfined expansion rate: 24 times.
- Traffic ready in 15 minutes.
- High strength concrete jacking solution.
- Works in wet environments – displaces water.
- Bonds with soil and concrete.
- Closed cell.
- Certified To NSF/ANSI/CAN 61 (approved for contact with drinking water).
⚠️ PPE Required for Application Proper personal protective equipment (PPE) is required when applying high-pressure spray polyurethane foam systems. Installers must use supplied-air respiratory protection, chemical-resistant suits, gloves, and eye protection during application.👉 View Professional Spray Foam PPE Options
The Alchemy AP Lift 430 Concrete Raising Foam Chemical Set provides contractors with a reliable polyurethane solution for lifting settled concrete, filling subsurface voids, and restoring structural support with minimal disruption.
Specifications:
| Manufacturer | Alchemy |
| Product Name | AP Lift 430 |
| System Type | Two-Component Polyurethane Chemical Set (A & B) |
| Foam Density | 3 lb |
| Application | Concrete Raising, Slab Lifting & Stabilization |
| Technology | Closed-Cell Polyurethane Foam |
| Typical Uses | Sidewalks, Driveways, Warehouse Floors, Roadways, Pool Decks |
| Additional Uses | Void Filling, Soil Stabilization & Erosion Repair |
| Package Configuration | A-Side & B-Side Chemical Set |
Supporting Documents
- Technical Data Sheet (TDS)
- Safety Data Sheet Part A
- Safety Data Sheet Part B
- Drinking Water Certificate – NSF 61
- Specifications
- Procedures – Slab Lift Process
Training & Support
Spray Foam Systems provides ongoing training and technical support for professional contractors. Customers can explore upcoming training opportunities and educational resources at Training Seminars & Education.
For equipment diagnostics, repairs, and maintenance services, visit our Service Center.
Be sure to ask your sales representative about processing guidelines and available service support when placing your order.




