SW-847B Solvent Tolerant Industrial Cleanroom Polyester Swab

Product Overview

The SW-847B is a solvent-tolerant industrial cleanroom polyester swab with a knitted polyester fiber head thermally bonded to a polypropylene handle, engineered for precision cleaning in industrial cleanroom and electronics manufacturing environments where aggressive cleaning solvents — ketones, aromatics, halogenated solvents, and high-concentration IPA — are standard process chemicals rather than occasional cleaning agents. The polyester fiber construction is the defining material advantage in this context: knitted polyester remains dimensionally and structurally stable across the full range of solvents used in industrial hand-cleaning operations, including acetone, MEK, toluene, xylene, n-butyl acetate, and commercial cleaning formulations that degrade open-cell polyurethane foam swabs through swelling and fragmentation within a single use cycle.

The swab head measures 17mm in length, 6.8mm in width, and 2.8mm in thickness. The 17mm length provides effective cleaning stroke coverage across PCB component rows, optical flat surfaces, and wide connector housings in a single pass, while the 6.8mm width delivers broad surface contact suited to flat substrate cleaning, panel wipe-downs, and instrument surface preparation. The knitted polyester structure provides a firmer contact surface than foam, enabling controlled scrubbing action against baked-on flux residues, partially-cured adhesive deposits, and dried coating overspray — contamination types that require mechanical abrasion combined with solvent dissolution to remove completely.

Solvent Tolerance & Cleanroom Performance

The polyester fiber head is free from silicone, amide, and phthalate ester additives, ensuring that no contaminating extractables are transferred to cleaned semiconductor substrates, optical surfaces, or precision component contact areas during solvent-assisted cleaning. The thermal bonding process used to attach the polyester head to the polypropylene handle eliminates adhesive as a contamination source — a relevant distinction in cleanroom environments where adhesive-bonded swabs present a risk of adhesive dissolution into the cleaning solvent and subsequent deposition on the cleaned surface.

Low NVR characteristics ensure that after solvent evaporation, no chemical film from the swab material remains on cleaned optical or electronic surfaces. The polypropylene handle measures 100mm in total length with 3.2mm width and thickness, providing stable single-handed operation during both wiping and scrubbing passes in industrial cleanroom workstations. Package contains 100 pieces.

Industry Applications & Use Scenarios

The SW-847B is used in semiconductor manufacturing, PCB assembly and rework, optical component manufacturing, precision electronics production, and industrial cleanroom maintenance where solvent tolerance is a swab selection criterion alongside particle control and low ionic contamination. Specific use scenarios include flux residue removal from PCB assemblies using ketone-based cleaning agents, cleaning conformal coating overspray from electronic component housings, removing adhesive residues from precision instrument surfaces using aromatic solvents, wiping optical component surfaces with high-concentration IPA in controlled manufacturing environments, and performing surface preparation on semiconductor packaging substrates before die attach or wire bonding operations. As a 100mm-handle model, it is the standard-reach counterpart to the SW-857B, which carries the same head dimensions on a 160mm handle for deep-cavity access requirements.