To kill coronavirus on hard surfaces, follow the steps below: Hard surfaces are also known as non-porous surfaces. Non-porous chalkboards; Whiteboards; Windows; Make sure to always test your marker on a small area of the surface first, as sometimes it can be quite tricky to determine a porous surface from a non-porous one. The virus lives longer on hard surfaces, such as plastic and metal, than on porous surfaces, such as clothing or cardboard. Countertop Surfaces Natural stones, such as granite and marble, have pores and are considered porous surfaces. Non-porous woods do not have as many vessels within the wood fibers. When both surfaces are non-porous then we are limited to glues applied as melts (hot melts), chemically reacting glues like Epoxy systems and pressure sensitive glues like a liquid sticky tape. What is the difference between permeable and impermeable surfaces? Does this mean that your disinfectant will only work on hard, non-porous surfaces? Super Marking or quick drying ink is best used for these types of items. These can be tables, counters, desks, tablets, and door handles. Nonporous surfaces on the other hand tend to be thick, dense, and solid do that nothing can permeate it beyond its outer-most surface. Not quite. When referring to wood, most softwoods, such as pine, cedar and redwood, are non-porous. Permeable vs. Impermeable Surfaces . Porous countertops used to have this little holes or pores where the fluids could pass through, while the non-porous variants do not. For example, wood is porous but if it’s been varnished or covered with polyurethane it becomes non-porous. According to the EPA, no disinfectant can claim to disinfect soft surfaces. Permeable surfaces (also known as porous or pervious surfaces) allow water to percolate into the soil to filter out pollutants and recharge the water table. “It likes surfaces that are very smooth, like door knobs.” Early research has demonstrated that the virus’s survival depends on the type of surface it lands on. This means water, other liquids, and even bacteria can enter the countertops' surface, … Too much contact from water … Compare this to a hard, non-porous surface like a stainless-steel table top – on surfaces like these there is nowhere for pathogens to run and hide. Stamping Non-Porous Surfaces Since standard stamp ink is designed to be partially absorbed by the surface it is applied to, special ink is needed to properly and adequately mark non-porous surfaces. The cells are typically smaller, and the grain of the wood is wide and open. However, on a non-porous or sealed surface, water will bead up. 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