CONSTIX^® SP-8M sealed swab consists of 100% knitted microfiber polyester fabric that is thermally bonded to a polypropylene handle with a large paddle. The swab head is made of cleanroom laundered, double layer knitted microfiber polyester material. The swab head is constructed without adhesives or binders, which makes it compatible with most common solvents, such as alcohols and ketones. The swab is durable, absorbent and features extremely low particles and residue levels