With over thirty unique swabs available, the CONSTIX® swab line offers a solution to almost any swab application problem. The newly expanded line includes sealed and wrapped foam swabs for general swab applications, sealed and wrapped polyester swabs for applications with critical contamination sensitivity, anti-static dissipative and conductive swabs for static sensitive applications. SF Series: The "Sealed Foam" swabs have 100 PPI polyurethane foam heads for good strength and abrasion resistance. The foam is excellent for particle entrapment and retention. SP Series: The "Sealed Polyester" swabs have heads made from Contec's POLYNIT polyester cleanroom fabric for exceptionally low residue and particulate levels. The SP Series swabs are also the best option for use with solvents, acids, corrosives and other chemicals. Technical data for any CONSTIX® swabs is available upon request including particulate, extractable residue and specific ion content. Many swabs are available with truly conductive handles for ESD sensitive applications. See your dealer for more details. Case weight: 3 Lbs.