These hydrophobic coatings bind liquids applied to the wells and keeps fluids in the well area. Made of extra-white soda-lime glass with very low iron content. Clean, flat and suitable for immediate use. Ideal for adhering fresh cells, frozen sections, and formalin fixed tissues for immunoperoxidase, immunoalkaline phosphatase, colorimetric, and radiolabeled in situ DNA hybridization procedures.