Needle punched felt refers to felt that is made by vertically needling fibers together to achieve a desired thickness and density. Needled felt is commonly made from wool, synthetic and other re-processed fibers. When viewing a cross-section of needled punched felt, the fibers lay vertically, as opposed to pressed felt, where the fibers lay horizontally.
Needle punched wool felt normally contains a lower percentage of wool as compared to SAE wool felts, and is therefore less expensive. F-15N and F-26N are the two standard type of needle punched wool felt. Sutherland Felt Co can also make needle punched equivalents to SAE grade F-3 and F-7 pressed wool felts. These normally have a lower wool content than their SAE grade counterparts, but are made to comparable densities. These materials are often used for packaging, crating, and lining applications, where a lower grade felt is acceptable. Sutherland Felt Co. can custom manufacturer various densities, thickness and blends to your specifications