80 PPI PVC Coated Reticulated Foam UL94 HF-1
80 PPI PVC Coated Reticulated Open Cell Polyurethane Foam
H-O Products 80 PPI PVC Coated Reticulated Foam UL94 HF-1 is a PVC-coated open cell polyether polyurethane foam with a cell count range of 65–80 ppi, a density of 0.3–0.5 lb/ft³, and a tensile strength minimum of 12 psi. The material is designed to weep moisture while minimizing the infiltration of drafts, water, dust, and insects into buildings, NEMA enclosures, and generator or compressor housings. The PVC coating provides UV resistance rated as Excellent after 252 hours per ASTM G154, and the foam carries a UL94 HF-1 flame rating.
Key Properties
- Compression Force Deflection @ 25%: 0.4 – 0.6 psi | ASTM D3574
- Tensile Strength Min: 12 psi | ASTM D3574
- Elongation: 150% minimum | ASTM D3574
- Density: 0.3 – 0.5 lb/ft³ | ASTM D3574
- Cell Count: 65 – 80 ppi | CREST
- UV Resistance, 252 Hours: Excellent | ASTM G154
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Material/Substrate | Polyether Polyurethane Foam | — |
| Color | Black | — |
| Cell Structure | Open Cell | — |
| Cell Count | 65 – 80 ppi | CREST |
| Density | 0.3 – 0.5 lb/ft³ | ASTM D3574 |
Mechanical Properties
| Property | Value | Test Method |
| Compression Force Deflection @ 25% | 0.4 – 0.6 psi | ASTM D3574 |
| Tensile Strength Min | 12 psi | ASTM D3574 |
| Elongation | 150% minimum | ASTM D3574 |
Flame & Fire Performance
| Property | Value | Test Method |
| UL94 HF-1 | Rated | — |
Environmental Performance
| Property | Value | Test Method |
| UV Resistance, 252 Hours | Excellent | ASTM G154 |
Compliance
- UL94 HF-1 — Rated
- Maximum-filtration air conditioner and HVAC filter media where the finest pore structure in the PVC-coated series is required
- Loudspeaker grille covers and acoustic enclosures demanding very fine filtration with UV-resistant, flame-rated construction
- Weep baffling in commercial and residential construction requiring the finest particulate and moisture barrier performance
- Environmental seals for NEMA enclosures and generator or compressor housings where fine dust and insect exclusion is critical
- Architectural drainage and ventilation applications in extreme climatic conditions
Common industries: Construction, HVAC, Electronics, Acoustics, Architecture
The 80 PPI PVC Coated Reticulated Foam UL94 HF-1 is the finest-grade offering in the PVC-coated reticulated polyurethane foam series, with a cell count range of 65–80 ppi. The very fine pore structure makes this grade suitable for applications requiring maximum particulate filtration and barrier performance, including loudspeaker covers, air conditioner filters, and construction weep baffling where fine contaminant exclusion is the primary requirement.
The PVC copolymer coating delivers UV resistance and durability for exterior and semi-exposed installations specified by architects for harsh climatic conditions including driving rain, dust storms, and hail. At this PPI range, the density is notably lower (0.3–0.5 lb/ft³) than the coarser grades in the series, reflecting the very fine, lightweight cell structure. The tensile strength minimum of 12 psi is the lowest in the PVC-coated series.
Compliant with UL94 HF-1.
What differentiates 80 PPI PVC Coated Reticulated Foam UL94 HF-1 from the 60 PPI grade?
The 80 PPI PVC Coated Reticulated Foam UL94 HF-1 has the finest cell structure in the PVC-coated reticulated series, with a cell count of 65–80 ppi compared to the 55–65 ppi range of the 60 PPI grade. It also has the lowest density in the series (0.3–0.5 lb/ft³ vs. 1.4–1.6 lb/ft³ for the 60 PPI grade) and a lower tensile strength minimum (12 psi vs. 20 psi), making it the choice for maximum filtration where mechanical load requirements are minimal.
Why is compression set critical for a reticulated foam used in filtration and environmental sealing applications?
Compression set measures the permanent deformation a foam retains after sustained compression. In barrier and filtering applications, the foam is typically installed under compression. Excessive compression set means the foam will not recover its original thickness over time, reducing sealing effectiveness and increasing infiltration of contaminants, moisture, and insects. No compression set value is specified on the TDS for this grade; the TDS should be consulted for updated data if this property is critical to the application.
What is the recommended service temperature range for 80 PPI PVC Coated Reticulated Foam UL94 HF-1?
No service temperature range is specified on the manufacturer's TDS for this material.
Is 80 PPI PVC Coated Reticulated Foam UL94 HF-1 suitable for flame-rated environments?
Yes. This grade carries a UL94 HF-1 rating as stated on the TDS.
How should 80 PPI PVC Coated Reticulated Foam UL94 HF-1 be specified?
Specify grade (80 PPI PVC Coated Reticulated Foam UL94 HF-1), thickness, color (Black), compliance requirements (UL94 HF-1), dimensional tolerances, and finished format.
