Lab Safety Supply Inc 22CW70 Swab Foam 4mm Rigid Tip PK100

Foam Swabs for Precision Cleaning

These non-sterile foam swabs feature a 4 mm rigid tip wrapped on a green polypropylene handle. Each swab measures 70 mm overall with a 12 mm tip length and 1/8 in handle diameter. The pack contains 100 pieces suited for controlled-environment tasks where lint-free application is required. They are not ESD safe and cannot be autoclaved.

Compatibility Checks Before Ordering

Verify that a 4 mm round tip fits the recesses or components you intend to clean. Confirm that a 70 mm overall length reaches the target area without interference. Ensure non-sterile, non-ESD-safe materials meet your process specifications. The green polypropylene handle resists common solvents, but validate chemical compatibility with your specific cleaning agents.

Upgrade from Cotton or Smaller-Tip Swabs

These swabs replace cotton-tipped applicators when lower particle generation and higher solvent capacity are needed. The rigid foam tip provides consistent pressure for stubborn residues without bending. The jump is worth it when cleaning validation requires documented low-lint performance or when a 4 mm tip accesses tight spaces that larger swabs cannot reach.