PROPINK® L77 Loosefill Insulation
32LBS/Bag
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Owens Corning L77 is the high-performance, ultra-efficient loosefill insulation that delivers unbeatable R-value, massive coverage, and zero settling—so you get more done with less, faster. It’s the insulation that turns every job into a win: cleaner installs, happier inspectors, and energy savings that speak for themselves.
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Details
Product Overview
PROPINK® L77 PINK® Fiberglas™ Loosefill Insulation is an unbonded, lightweight fiberglass insulation designed for blown-in applications. It's engineered for high coverage, low dust, and long-term thermal performance, making it ideal for both new construction and retrofit projects.
Applications
PROPINK® L77 is highly versatile and can be used in:
- Open Attics (new or retrofit)
- Closed Cavities (walls, floors, cathedral ceilings)
- Hard-to-reach areas where batt or roll insulation is impractical
Purpose & Value
The primary goal of PROPINK® L77 is to:
- Improve thermal efficiency (R-values up to R-60)
- Reduce energy costs for homeowners
- Speed up installation for contractors
- Minimize material waste and maximize yield
Key Features & Benefits
High Coverage & Yield
- Up to 77 bags per truckload to up to 77 sq. ft. per bag @ R-30
- 18% more yield than previous Owens Corning loosefill products
- Up to 45% more coverage than cellulose
Thermal Performance
- R-values range from R-13 to R-60 in open cavities
- Maintains consistent R-value over time with negligible settling
Fire & Moisture Resistance
- Non-combustible (ASTM E84: Flame Spread 25 / Smoke Developed 50)
- Mold and mildew resistant
- Corrosion-resistant and odor-free
Low Dust & Easy Handling
- Cleaner job sites
- Less irritation for installers
- Compatible with standard blowing machines
Open Attic Coverage
| R-Value | Bags/1,000sq. ft. | Min. Thickness (in) | Max Coverage (sq. ft.) |
| R-30 | 13.0 | 10.25 | 77 |
| R-38 | 16.8 | 12.75 | 59.5 |
| R-49 | 22.6 | 16.25 | 44.2 |
| R-60 | 28.5 | 19.50 | 35.1 |
Closed Cavity (Walls, Floors, Ceilings)
- Installed Density: 1.3—1.8 lbs/ft³
- R-Values: R-13 to R-48 depending on cavity depth and application
- Negligible settling ensures long-term performance
Installation Instructions
- Use a standard blowing machine (e.g., Unisol Volu-Matic III)
- Recommended setup: 3rd gear, 75% gate open, 3" hose, 10 ft. arc
- Follow bag count and minimum thickness guidelines to achieve labeled R-values
- Can be used with PROPINK® Complete™ Wall System for dense-pack wall applications
Safety & Compliance
- Meets ASTM standards for fire, moisture, and corrosion resistance
- NFPA 13 compliant for non-combustible insulation
- No formaldehyde, asbestos, or harsh chemicals
- PPE recommended: gloves, goggles, dust mask
Environmental & Certifications
- GREENGUARD Gold Certified
- LEED credit eligible
- Made with recycled content
- Environmental Product Declaration (EPD) available.
Specifications
Square Feet per Package
77
Supplier Part Number
803496
SKU
1000183
Product Details
32LBS/Bag
Brand
Owens Corning