20 PPI PVC Coated Reticulated Foam
20 PPI UV-Resistant PVC Coated Open Cell Reticulated Polyether Polyurethane Foam
H-O Products 20 PPI PVC Coated Reticulated Foam is a compressible open cell polyether polyurethane foam with a nominal cell count of 20 ppi ±5 (CREST), a density of 1.4 lb/ft³ ±0.10, and a volumetric air flow rate of 22 cfm ±3.5 per ASTM D3574-91. The PVC coating provides UV resistance rated Excellent at 252 hours per ASTM G154 and is widely specified by architects for its durability and longevity. It is the mid-pore grade in the PVC coated reticulated foam series and is best suited for exposure to harsh climate conditions including driving rain, dust storms, and hail storms.
Key Properties
- Compression Force Deflection @ 25%: 0.50 psi ±0.10 (ASTM D3574-91)
- Compression Set @ 50% Deflection: 15% loss maximum (ASTM D3574-91)
- Tensile Strength: 18 lb/in minimum (ASTM D3574-91)
- Elongation @ Break: 180% minimum (ASTM D3574-91)
- Density: 1.4 lb/ft³ ±0.10 (ASTM D3574-91)
- UV Resistance, 252 Hours: Excellent (ASTM G154)
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Thickness | 1/4″, 3/8″, 5/8″, 1/2″, 3/4″, 7/8″, 1″, 1-1/8″, 1-1/4″, 1-3/8″, 1-1/2″, 1-3/4″, 2″ | — |
| Material/Substrate | Polyether Polyurethane Foam | — |
| Color | Black | — |
| Cell Structure | Open Cell | — |
| Cell Count | 20 ppi ±5 | CREST |
| Foam Grade | T-20 | CREST |
| Density | 1.4 lb/ft³ ±0.10 | ASTM D3574-91 |
Mechanical Properties
| Property | Value | Test Method |
| Compression Force Deflection @ 25% | 0.50 psi ±0.10 | ASTM D3574-91 |
| Compression Set @ 50% Deflection | 15% loss maximum | ASTM D3574-91 |
| Tensile Strength | 18 lb/in minimum | ASTM D3574-91 |
| Elongation @ Break | 180% minimum | ASTM D3574-91 |
| Tear Strength | 5 lb/in minimum | ASTM D3574-91 |
Acoustic / Air Flow
| Property | Value | Test Method |
| Volumetric Air Flow Rate | 22 cfm ±3.5 | ASTM D3574-91 |
| Air Pressure Drop | 0.15 ±0.05 | ASTM D3574-91 |
Flame & Fire Performance
| Property | Value | Test Method |
| Flame Retardant | Flame retardant available by special request | — |
Environmental Performance
| Property | Value | Test Method |
| UV Resistance, 252 Hours | Excellent | ASTM G154 |
Aging Performance
Dry Heat Aging
| Property | Value | Test Method |
| Tensile Strength Dry Heat Loss | 15% maximum | ASTM D3574-91 |
Autoclave Aging
| Property | Value | Test Method |
| Compression Set @ 50% Deflection Autoclave Loss | 10% maximum | ASTM 3574-91 |
| 25% Compression Load Deflection Autoclave Loss | 15% maximum | ASTM D3574-91 |
- Loudspeaker covers requiring mid-pore filtration in the PVC coated series with UV and weather resistance for harshly exposed installations
- Air conditioner filter media in exposed or outdoor installations where PVC coating durability and longevity are specified by architects
- Weep baffling in commercial and residential construction where harsh climate conditions require PVC coating durability
- NEMA enclosure and generator or compressor housing ventilation where moderate air flow and long-term UV and weather resistance are specified
- General filtering and moisture baffle applications in exterior building assemblies requiring mid-pore filtration with durable PVC weather protection
Common industries: construction, HVAC, fenestration, electrical enclosures, industrial equipment, audio.
The 20 PPI PVC Coated Reticulated Foam is a mid-pore grade in H-O Products’ PVC coated reticulated foam series, with a nominal cell count of 20 ppi and a volumetric air flow rate of 22 cfm ±3.5. The PVC coating provides UV resistance and durability widely specified by architects, and this grade is best for exposure to harsh climate conditions such as driving rain, dust storms, and hail storms.
It is designed for loudspeaker covers, air conditioner filters, general filtering applications, and weep baffling in commercial and residential construction, where it weeps moisture and condensation while minimizing infiltration of air, moisture, insects, and dust.
Per the TDS note, the Crest visual PPI standard is the industry accepted nomenclature for defining reticulated foam pore size; however, the air flow is the only quantifiable value for determining PPI for published specifications, and the only exception allowed is if visual PPI is agreed as a standard in advance prior to order submission.
Compression force deflection at 25% is 0.50 psi ±0.10. Compression set at 50% deflection is 15% loss maximum, with the tightest autoclave compression set loss in the PVC coated series at 10% maximum. Tensile strength is 18 lb/in minimum with a dry heat loss maximum of 15%. Elongation at break is 180% minimum. Tear strength is 5 lb/in minimum. Air pressure drop is 0.15 ±0.05 per ASTM D3574-91. The 25% compression load deflection autoclave loss is 15% maximum. Flame retardant is available by special request.
What differentiates the 20 PPI PVC Coated grade from the 10 PPI, 30 PPI, 45 PPI, 60 PPI, and 80 PPI PVC coated grades?
The 20 PPI PVC Coated grade is the mid-pore grade at 22 cfm ±3.5 air flow and carries the tightest autoclave compression set loss in the series at 10% maximum. It shares the full thickness range to 2" with the 10 PPI and 30 PPI grades. The PVC coating is widely specified by architects for durability and longevity and is best for harsh climate exposure.
Why is compression force deflection important for a PVC coated reticulated foam?
Compression force deflection determines how readily the foam compresses to fill a cavity under installation force. The 20 PPI PVC coated grade has a CFD of 0.50 psi ±0.10 at 25%, providing moderate resistance that supports consistent seating in loudspeaker covers and filter frames while maintaining reliable filtration contact throughout service life.
What is the service temperature range for the 20 PPI PVC Coated Reticulated Foam?
A specific service temperature range is not stated on the manufacturer's TDS for this material. Aging performance data includes tensile strength dry heat loss of 15% maximum per ASTM D3574-91 and autoclave aging performance per ASTM 3574-91 and ASTM D3574-91.
Is the 20 PPI PVC Coated Reticulated Foam suitable for regulated environments?
No compliance standards are specified on the manufacturer's TDS for this material. A flame retardant formulation is available by special request. The PVC coating provides UV resistance and is described as best for harsh climate conditions.
How should the 20 PPI PVC Coated Reticulated Foam be specified?
Specify grade (20 PPI PVC Coated Reticulated Foam, Foam Grade T-20), thickness, color (Black), compliance requirements if applicable, dimensional tolerances, and finished format. Per the TDS, air flow is the only quantifiable value for determining PPI for published specifications.
