The IPA-Based Surface and Stencil Cleaner - Refill has been formulated to simplify cleaning stencils and misprints. This cleaner is very effective on most all solder pastes and fluxes. These money-saving refills typically reduce cleaning costs 30 or more. There are 100 8x5 Wipes in each refill. The wipe itself is an ultra-pure, high-strength polyester fabric not paper that will not leave lint or residues on the stencils. Uniquely, these Stencil Wipes have the industrys only unlimited shelf-life. Non-corrosive and ESD-safe. 100 volatile. No residues. Made from renewable resources. Flammable. Biodegradable (liquid only). Completely ozone-safe. Low GWP. 100 VOC. Flammable