10 PPI PVC Coated Reticulated Foam UL94 HF-1
10 PPI PVC Coated Reticulated Foam UL94 HF-1 is a PVC-coated open cell polyether polyurethane foam with a nominal 10 pores per inch (PPI) cell count, producing a volumetric air flow rate of 25.5 cfm ±4.5 and a density of 1.4 lb/ft³ ±0.10. The material is engineered to weep moisture while minimizing the infiltration of drafts, water, dust, and insects into buildings and enclosed cavities. The PVC coating provides UV resistance rated as Excellent after 252 hours of testing per ASTM G154, and the foam carries a UL94 HF-1 flame rating.
Key Properties
- Compression Force Deflection @ 25%: 0.30 psi minimum | ASTM D3574-91
- Tensile Strength: 5 lb/in minimum | ASTM D3574-91
- Elongation @ Break: 100% minimum | ASTM D3574-91
- Compression Set @ 50% Deflection: 15% loss maximum | 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 |
| Material/Substrate | Polyether Polyurethane Foam | — |
| Color | Black | — |
| Cell Structure | Open Cell | — |
| Cell Count | 10 ppi ±5 | CREST |
| Foam Grade | T-10 | CREST |
| Density | 1.4 lb/ft³ ±0.10 | ASTM D3574-91 |
| Density Tolerance | ±0.10 | ASTM D3574-91 |
| Volumetric Air Flow Rate | 25.5 cfm ±4.5 | ASTM D3574-91 |
| Air Pressure Drop | 0.15 ±0.05 | ASTM D3574-91 |
Mechanical Properties
| Property | Value | Test Method |
| Compression Force Deflection @ 25% | 0.30 psi minimum | ASTM D3574-91 |
| Tensile Strength | 5 lb/in minimum | ASTM D3574-91 |
| Tensile Strength Dry Heat Loss | 15% maximum | ASTM D3574-91 |
| Elongation @ Break | 100% minimum | ASTM D3574-91 |
| Tear Strength | 2 lb/in minimum | ASTM D3574-91 |
| Compression Set @ 50% Deflection | 15% loss maximum | ASTM D3574-91 |
| Compression Set @ 50% Deflection Autoclave Loss | 15% maximum | ASTM 3574-91 |
| 25% Compression Load Deflection Autoclave Loss | 30% maximum | ASTM D3574-91 |
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
- Weep baffling installations in commercial and residential building envelopes to manage moisture and condensation
- Loudspeaker grille covers requiring open airflow with a durable, UV-resistant face
- Air conditioner and HVAC filter media where high volumetric flow rate is the primary requirement
- Environmental barrier seals for NEMA enclosures, generator housings, and compressor cavities
- Exterior architectural applications in harsh climates exposed to driving rain, dust storms, and hail
Common industries: Construction, HVAC, Electronics, Acoustics, Architecture
The 10 PPI PVC Coated Reticulated Foam UL94 HF-1 is a coarse-grade, PVC-coated reticulated polyether polyurethane foam designed for applications requiring high air flow with moderate filtration and environmental barrier performance. At 10 PPI, it represents the most open grade in the PVC-coated reticulated foam series, making it well suited for weep baffling in commercial and residential construction, loudspeaker covers, and air conditioner filters where maximum airflow is required alongside resistance to harsh outdoor conditions.
The PVC copolymer coating imparts UV resistance and durability that is widely specified by architects for exterior and semi-exposed installations. The foam performs reliably against driving rain, dust storms, and hail, providing a moisture-weeping barrier that prevents infiltration of air, insects, and particulate matter. Autoclave testing confirms a compression set loss of 15% maximum and a 25% compression load deflection loss of 30% maximum, validating dimensional stability under humid and elevated-temperature cycling conditions.
Compliant with UL94 HF-1.
What differentiates 10 PPI PVC Coated Reticulated Foam UL94 HF-1 from finer-grade PVC-coated reticulated foams such as the 20 PPI or 30 PPI grades?
At 10 PPI, this grade has the coarsest cell structure and the highest volumetric air flow rate (25.5 cfm ±4.5) in the series. This makes it the preferred choice where maximum airflow is required and coarse particulate filtration is acceptable, whereas higher PPI grades provide finer filtration at the cost of reduced air flow.
Why is compression set critical for a reticulated foam used in weep baffling and filtration applications?
Compression set measures the permanent deformation a foam retains after sustained compression. In weep baffling and sealing applications, the foam is typically installed under compression against a frame or housing. A high compression set means the foam will not recover its original thickness over time, reducing the sealing effectiveness and allowing increasing infiltration of moisture, insects, and drafts. The 10 PPI PVC Coated Reticulated Foam UL94 HF-1 is rated at 15% loss maximum, ensuring long-term resilience in installed conditions.
What is the recommended service temperature range for 10 PPI PVC Coated Reticulated Foam UL94 HF-1?
No service temperature range is specified on the manufacturer's TDS for this material.
Is 10 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 10 PPI PVC Coated Reticulated Foam UL94 HF-1 be specified?
Specify grade (10 PPI PVC Coated Reticulated Foam UL94 HF-1), thickness, color (Black), compliance requirements (UL94 HF-1), dimensional tolerances, and finished format.
