OPEN-CELL
WHY OPEN CELL?
Open-cell spray foam is a thermal insulation material that expands 120 times its initial volume, fills cavities of any shape, and adheres tenaciously to most building materials and framing members.
It provides a continuous, protective air barrier that helps to minimize air leakage and intrusion, and provides exceptional performance in the reduction of heat transfer.
Our installers and contractors rave about Lapolla!
LAPOLLA OPEN-CELL PRODUCTS
FOAM-LOK 400 is a breakthrough open-cell spray foam insulation technology that is installed in attics and crawl spaces in one step with no ignition barrier required. It’s ultra high yield, low density and no mix properties make it a contractors first choice.
Foam-LOK 500 is ideal for a variety of building envelope applications including use in walls, floors, ceilings (including vaulted and cathedral style) and attics. The material works by forming a completely sealed air barrier in wall cavities and can be utilized to fill 2” x 6” stud wall construction in a single application.
| Properties | Open Cell SPF | Closed Cell SPF |
|---|---|---|
| Density (ASTM D-1622) | 0.4 – 0.6 pcf | 1.8 – 2.2 pcf |
| Blowing Agent | Water/CO2 only | Water/CO2 and 245fa |
| Aged R-Value (ASTM C-518) | 3.9/inch | 6.3/inch |
| Open Cells (ASTM D-2856) | >90% | |
| Closed Cells (ASTM D-6226) | ≥5 lb/in2 | ≥15 lb/in2 Structural2 |
| Air Permeance (ASTM E-2178, E-283) | < 0.2 L/s-m2
Air Barrier at 4½” Thickness | < 0.2 L/s-m2
Air Barrier at 2″ Thickness |
| Surface Burn Characteristic (ASTM E-84) | Class 1 | Class 1 |
| Water Vapor Permeance (ASTM E-96) | <1 perm at 2 inches Vapor Retarder | |
| Water Absorption (ASTM D-2841) | < 2% Resistant to Flood Damage4 |
