Filtration Felt

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.

understanding micro ratings
  • 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

GradeMicron RatingWeightThicknessAir PermTensile MDTensile CDMullen
MinMaxMinMaxMinMaxMinMax % ElongMinMax % ElongMin
PE-1114160.090.112050200100200130500
PE-559.510.50.060.0870130100100120140225
PE-10109.510.50.0650.085100160100100120140225
PE-25259.510.50.080.1170270100100120140225
PE-50509.510.50.0750.095220320100120100140225
PE-1001009.510.50.0950.125270470100120100160225
PE-20020011130.1350.165300500100120100170225
GradeMicron RatingWeight (OPSY)ThicknessWidthMin Order (Yds)25 Yds100 Yds (PPY)300 Yds (PPY)500 Yds (PPY)1,000 Yds (PPY)
PE-11150.172"25$7.12$5.66$5.33$4.93$4.75
PE-55100.0772"25$4.97$3.95$3.72$3.44$3.32
PE-1010100.0872"25$4.97$3.95$3.72$3.44$3.32
PE-2525100.0972"25$4.97$3.95$3.72$3.44$3.32
PE-5050100.0972"25$4.97$3.95$3.72$3.44$3.32
PE-100100100.1172"25$4.97$3.95$3.72$3.44$3.32
PE-200200120.1572"25$6.05$4.81$4.53$4.19$4.03

Micron Rated Polypropylene Felt

GradeMicron RatingWeightThicknessAir PermTensile MDTensile CDMullen
MinMaxMinMaxMinMaxMinMax % ElongMinMax % ElongMin
PP-1114160.090.112050150120225120500
PP-559.510.50.0650.0854080100110200110300
PP-10109.510.50.0750.09560120100110150110300
PP-25259.510.50.0750.095110180100110150120300
PP-50509.510.50.0850.105160280100110100135300
PP-1001009.510.50.0850.115200350100110100140300
PP-20020011130.1350.165300500120120110180250
GradeMicron RatingWeight (OPSY)ThicknessWidthMin. Order (Yds)25 Yds100 Yds (PPY)300 Yds (PPY)500 Yds (PPY)1,000 Yds (PPY)
PP-11150.172"25$7.12$5.66$5.33$4.93$4.75
PP-55100.0772"25$4.97$3.95$3.72$3.44$3.32
PP-1010100.0872"25$4.97$3.95$3.72$3.44$3.32
PP-2525100.0972"25$4.97$3.95$3.72$3.44$3.32
PP-5050100.0972"25$4.97$3.95$3.72$3.44$3.32
PP-100100100.1172"25$4.97$3.95$3.72$3.44$3.32
PP-200200120.1572"25$6.05$4.81$4.53$4.19$4.03

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.