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What does porous surface mean?

What does porous surface mean?

Terms Defined Simply put, a porous surface is one that has pores. Instead of having pores, non-porous surfaces are smooth and sealed so liquid and air cannot move through it. On a countertop that is porous and not sealed, water will lay flat. However, on a non-porous or sealed surface, water will bead up.

What are porous surface materials?

A porous surface allows the passing through of water, liquid or vapor. Objects containing porous surfaces have empty spaces or pores that allow external matter—like water, air and particles—to penetrate into the object. Paper, untreated wood, cardboard, sponge and fabric are some examples of porous surfaces.

How can you tell if a surface is porous?

A porous surface has pores which allow things to flow through them more readily versus non-porous materials, which have a much tighter cell structure preventing ease of flow. Glass, metal, plastic, and varnished wood are examples of non-porous materials, while untreated wood, drapes, carpet, and cardboard are porous.

What is an example of a non-porous surface?

Examples of non-porous surfaces include glass, plastics, metals, and varnished wood. Latent prints on non-porous surfaces tend to be fragile, so they must be preserved as soon as possible.

What is the example of non-porous?

Which 2 methods are recommended for porous surfaces?

For porous surfaces, scientists sprinkle chemicals such as ninhydrin over the prints and then take photographs of the developing fingerprints. For non-porous smooth surfaces, experts use powder-and-brush techniques, followed by lifting tape.

What does porous mean and can porous items be disinfected?

Porous means that an item is made or constructed of a material that has pores or openings. These items are absorbent. Some porous items can be safely cleaned, disinfected, and used again. Examples of porous items are towels, chamois, linens, and some nail files and buffers.