CONSTIX SF-2 swab consists of 100 pore-per-inch sealed closed-cell foam head with a polypropylene handle. The swab head is thermally sealed and bonded to the handle without adhesives or binders.

The polyurethane foam head provides good particle entrapment and removal. The large size of the foam head of the SF-2 swab provides better surface coverage for cleaning. SF-2 swab is compatible with many solvents, such as isopropanol and ethanol, but is not recommended for use with ketones, such as acetone or MEK.