The Techspray 1608-100DSP SMT Stencil Wipes are excellent for removing pastes and contaminants that arise in most SMT processes. Just the facts for 1608-100DSP: 70% Pure, anhydrous isopropyl and 30% Deionized Water Low linting, Tear resistant polyester Safe on Plastics Non-Ozone ...The Techspray 1608-100DSP SMT Stencil Wipes are excellent for removing pastes and contaminants that arise in most SMT processes. Just the facts for 1608-100DSP: 70% Pure, anhydrous isopropyl and 30% Deionized Water Low linting, Tear resistant polyester Safe on Plastics Non-Ozone Depleting Rapidly Evaporates 100 wipes per Package/Tub Pre-saturated, 5"x8" (127mm x 203mm) wipes Case of (6) Tubs, 600 wipes per case