Is GREEN STUFF® an absorbent or an adsorbent?
GREEN STUFF® is technically an adsorbent. A true absorbent is a material that swells up when it absorbs a liquid (such as super absorbent polymers found in diapers.) A true adsorbent is a fiber material that the absorbed liquid clings to (like clay type kitty litter.) GREEN STUFF® Absorbent has an open cell structure that does not swell as liquid is absorbed into it. GREEN STUFF® is similar to a cross between sponge and foam.
GREEN STUFF® is an absorbent. (As described in EPA’s rule-makings, “adsorbents” are materials that retain liquids on the surface of their particles by capillary action and surface tension. “Absorbents”, mean-while retain liquids within their molecular structure.) A true adsorbent is a material that the absorbed liquid clings to (like clay type kitty litter.) GREEN STUFF® Absorbent has an open cell structure that encapsulates liquid absorbed into it. GREEN STUFF® is similar to a cross between sponge and foam.