Filtration Felt
Sutherland Felt Company stocks a wide range of polyester and polypropylene filtration felts, used in a wide variety of liquid and air filtration markets. Polyester and Polypropylene felts are in stock ranging from 1 micron to 200 micron.
Understanding Micro Ratings
A micron is a unit of measure in the metric system equal to 1 millionth of a meter in length (about 39 millionths of an inch). The average cross-section of a human hair is 50 microns. The human eye cannot see anything smaller than 40 microns in size.
- 50 microns – Diameter of a human hair
- 40 microns – Lower limit of visibility of a human eye
- 25 microns – White blood cells
- 8 microns – Red blood cells
- 2 microns – Bacteria
Micron Rated Polyester Felt
| Grade | Micron Rating | Weight | Thickness | Air Perm | Tensile MD | Tensile CD | Mullen | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | Min | Max | Min | Max | Min | Max % Elong | Min | Max % Elong | Min | ||
| PE-1 | 1 | 14 | 16 | 0.09 | 0.11 | 20 | 50 | 200 | 100 | 200 | 130 | 500 |
| PE-5 | 5 | 9.5 | 10.5 | 0.06 | 0.08 | 70 | 130 | 100 | 100 | 120 | 140 | 225 |
| PE-10 | 10 | 9.5 | 10.5 | 0.065 | 0.085 | 100 | 160 | 100 | 100 | 120 | 140 | 225 |
| PE-25 | 25 | 9.5 | 10.5 | 0.08 | 0.1 | 170 | 270 | 100 | 100 | 120 | 140 | 225 |
| PE-50 | 50 | 9.5 | 10.5 | 0.075 | 0.095 | 220 | 320 | 100 | 120 | 100 | 140 | 225 |
| PE-100 | 100 | 9.5 | 10.5 | 0.095 | 0.125 | 270 | 470 | 100 | 120 | 100 | 160 | 225 |
| PE-200 | 200 | 11 | 13 | 0.135 | 0.165 | 300 | 500 | 100 | 120 | 100 | 170 | 225 |
Micron Rated Polypropylene Felt
| Grade | Micron Rating | Weight | Thickness | Air Perm | Tensile MD | Tensile CD | Mullen | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | Min | Max | Min | Max | Min | Max % Elong | Min | Max % Elong | Min | ||
| PP-1 | 1 | 14 | 16 | 0.09 | 0.11 | 20 | 50 | 150 | 120 | 225 | 120 | 500 |
| PP-5 | 5 | 9.5 | 10.5 | 0.065 | 0.085 | 40 | 80 | 100 | 110 | 200 | 110 | 300 |
| PP-10 | 10 | 9.5 | 10.5 | 0.075 | 0.095 | 60 | 120 | 100 | 110 | 150 | 110 | 300 |
| PP-25 | 25 | 9.5 | 10.5 | 0.075 | 0.095 | 110 | 180 | 100 | 110 | 150 | 120 | 300 |
| PP-50 | 50 | 9.5 | 10.5 | 0.085 | 0.105 | 160 | 280 | 100 | 110 | 100 | 135 | 300 |
| PP-100 | 100 | 9.5 | 10.5 | 0.085 | 0.115 | 200 | 350 | 100 | 110 | 100 | 140 | 300 |
| PP-200 | 200 | 11 | 13 | 0.135 | 0.165 | 300 | 500 | 120 | 120 | 110 | 180 | 250 |
Filtration felt is a nonwoven felt material designed to capture particles from liquids or air during industrial filtration processes.
Sutherland Felt Company stocks filtration felt materials ranging from 1 micron to 200 micron.
Polyester filtration felt offers excellent durability and abrasion resistance, while polypropylene filtration felt provides superior chemical and moisture resistance.
Filtration felt is commonly used in manufacturing, HVAC, automotive, chemical processing, water treatment, and industrial air and liquid filtration systems.
Yes. Sutherland Felt Company offers custom cutting, slitting, die cutting, adhesive backing, and fabricated filtration felt components.
Buying Tips:
- Industrial felt is not guaranteed to be 100% free of wrinkles/blemishes, as those are a natural product of the manufacturing process.
- Direct inquiries to Sutherland Felt Co. are subject to a $100 minimum order. Please feel free to call for pricing. Lower minimums as well as close outs can be found at our online store – www.thefeltcompany.com
- Special orders normally require a 3-4 week lead time and a manufacturing minimum. Items designated as in-stock normally ship within 24 hours.
- **Please note: Pilling is common in soft density pressed wool felt.