SAE Chart – Sutherland Felt Co

Commercial Standard Grade	16R1	16R1X	16R2	16R3	16R3X	12R1	12R2	12R3	12R3X	9R1	9R2	9R3	9R4	9R5	8R5
SAE Number	F-1	F-50	F-2	F-3	F-51	F-5	F-6	F-7	F-55	F-10	F-11	F-12	F-13	F-15	F-26
NTA Number	34R1	34R1	34R2	34R3	34R3	26R1	26R2	26R3	26R3	18R1	18R2	---	18R3	---	17R2
General Properties
Wool Content (fiber basis) min. %	95	95	90	85	92	95	87	80	75	95	87	85	75	55	45
Density (1"), Lbs./Sq Yd	16	15.6	16	15.6	15.6	12.24	12.24	12.24	12	8.48	8.48	8.48	8.48	8.48	7.2
Standard Thickness Range, in.	1/8 to 1	3/64 to 3/32	1/8 to 1	1/8 to 1	3/64 to 3/32	1/8 to 1	1/8 to 1	1/8 to 1	1/16 to 3/32	1/8 to 1	1/8 to 1	1/8 to 1	1/8 to 1	1/8 to 1	1/8 to 1
Standard Width, in.	60	60 or 72	60	60	60 or 72	60	60 or 72	72	60 or 72	72	72	72	72	72	72
Color	white	white	any but gray or black	gray	gray	white	gray	gray	gray/black	white	gray	gray	gray	gray	gray
Physical Properties
Specific Gravity (%)	34	34	34	34	34	26	26	26	26	18	18	18	18	18	17
Therm. Cond. (70F) btu/hr/sq ft/F/in.	0.36	0.32	0.36	0.35	0.32	0.3	0.3	0.3	0.3	0.3	0.24	0.24	0.24	0.24	0.25
Thermal Expansion	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Air Perm (1/16"), cfm/sq ft/0.5" H2)	30-Oct	15 - 25	30-Oct	15 - 35	15 - 40	20 - 50	20 - 50	20 - 50	20 - 50	75 - 150	75 - 150	75 - 150	75 - 150	75 - 150	100 - 200
Liquid Absorption, % by weight (1.0 sp gr)	>175	>180	>175	>190	>170	>250	>225	>225	>225	>400	>375	>350	>350	>350	>400
by volume	74	75	74	76	75	80	80	80	81	88	88	88	88	88	92
Capillarity (wicking height, 575 SSU, 70F) in.	4	4	4	4	4	3	3	3	3	2.5	2.5	2.5	2.5	2.5	---
Coef of Friction Vibration Absorption	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37
Static load bearing cap/unit area	high	---	high	high	---	medium	medium	medium	---	low	low	low	low	low	very low
dynamic stress endurance	high	---	high	high-med.	---	high	high	medium	---	high	high-med	medium	low	low	very low
Noise Reduction Coef (1")	0.5	0.55	0.5	0.52	0.55	0.58	0.58	0.58	0.58	0.58	0.64	0.64	0.64	0.64	0.65
Mechanical Properties
Tensile Strength (min), psi	500	500	500	400	300	400	275	250	200	225	200	100	75	75	---
Elongation (100 psi), 100%	13	8	14	16	9	16	18	21	25	33	35	35	37	39	---
Mullen Bursting Strength (1/8"), psi	250	225	225	200	225	175	150	125	200	75	60	55	50	40	25
Split Resistance (min), lb/2" width	33	---	28	22	---	18	16	12	---	8	6	3	2	2	---
Hardness Range, Shore A	30 - 40	---	30 - 40	30 - 40	---	20 - 30	20 - 30	20 - 30	---	15 - 25	15 - 25	15 - 25	15 - 25	15 - 25	15-May
Compressibility 10% defl), psi	21	---	21	13	---	6	6	6	---	4	4	3	3	3	1
Recovery (within 1 min after 10% defl) %	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99
Abrasion Resistance	excellent	excellent	excellent	excellent	excellent	good	good	good	good	fair	fair	fair	fair	fair	poor
Chemical and Environmental Properties
Effect of Sunlight and Oxidation	none	none	none	none	none	none	none	none	none	none	none	none	none	none	none
Solvent Resistance and Stability in Oil	excellent	excellent	excellent	excellent	excellent	excellent	excellent	excellent	excellent	excellent	excellent	excellent	excellent	excellent	excellent
Acid Resistance, dilute	excellent	excellent	excellent	excellent	excellent	excellent	excellent	good	good	excellent	excellent	good	fair	fair	fair
concentrated	good-fair	fair-good	good-fair	good-fair	fair-good	good-fair	good-fair	fair	fair	fair-good	fair-good	fair-good	fair	fair	poor
Alkali Resistance, dilute	fair	fair	fair	fair	fair	fair	fair	fair	fair	fair	fair	fair	fair	fair	fair
concentrated	low	low	low	low	low	low	low	low	low	low	low	low	low	low	low
Temperature Range, F	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200	-80 to 200

Please Note: The above information has been carefully reviewed to be as reliable as possible. However, due to the diversity of felt applications we cannot guarantee its accuracy, and urge you to make your own tests to determine the suitability of a given felt material.
Special Orders normally require a 3-4 week lead time and a manufacturing minimum. Items designated as in-stock are normally inventoried, but may occasionally be in the process of being produced, thus requiring a 3-4 week lead time.