3MM Chr Whatman 3MM Chr paper is the world’s most widely used blotting paper. This acceptance and usage reflect the high quality, purity,and consistency that are relied upon by researchers doing Southern, Northern, and Western transfers. 3MM Chr paper is now available in the most widely used sizes. A medium thickness paper (0.34 mm) is used extensively in electrophoresis for lifting of sequencing gels.

GB003 A general purpose blotting paper (0.8 mm) made from pure raw materials with a high absorbency used as a membrane gel support. A thick paper recommended for the lysis/denaturation of colony or plaque lifts and Western blots.

GB005 A thick (1.5 mm) highly absorbent paper recommended for applications where fewer layers of blotting paper must still ensure a high capacity. Recommended for semi-dry blotting of proteins.

Features and benefits

• Pure cellulose produced entirely from the highest quality cotton linters with no additives of any kind. Ensures that no contamination will occur during the transfer steps.
• Manufactured and tested specifically for chromatographic and blotting techniques. This ensures the wicking capability and uniformity of capillary action that are important in obtaining clean and even transfers during blotting.
• Whatman 3MM Chr is considered the industry standard for blotting procedures.
• Convenient sizes available in sheets precisely cut to the most popular gel and transfer membrane sizes. Allows ‘out-of-the-box’ usage and eliminates sheet-to-sheet variations.

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Ordering Information – Blotting Papers Catalog Number Description Grade 3MM Chr 3030-6185 3MM Chr sheets, 11 x 14 cm, 100/pk 3030-6132 3MM Chr sheets, 12 x 14 cm, 100/pk 3030-153 3MM Chr sheets, 15 x 17.5 cm, 100/pk 3030-6188 3MM Chr sheets, 15 x 20 cm, 100/pk 3030-221 3MM Chr sheets, 18 x 34 cm, 100/pk 3030-861 3MM Chr sheets, 20 x 20 cm, 100/pk 3030-6461 3MM Chr sheets, 26 x 41 cm, 100/pk 3030-335 3MM Chr sheets, 31.5 x 35.5 cm, 100/pk 3030-347 3MM Chr sheets, 35 x 43 cm, 100/pk 3030-392 3MM Chr sheets, 35 x 45 cm, 100/pk 3030-917 3MM Chr sheets, 46 x 57 cm, 100/pk 3030-931 3MM Chr sheets, 58 x 68 cm, 100/pk 3030-6189 3MM Chr sheets, 4 x 5.25 inches, 100/pk 3030-6187 3MM Chr sheets, 6 x 8 inches, 100/pk 3030-866 3MM Chr sheets, 8 x 10 inches, 100/pk 3030-614 3MM Chr roll, 2 cm x 100 m, 1/pk 3030-662 3MM Chr roll, 7.5 cm x 100 m, 1/pk 3030-672 3MM Chr roll, 10 cm x 100 m, 1/pk 3030-675 3MM Chr roll, 12.5 cm x 100 m, 1/pk 3030-681 3MM Chr roll, 15 cm x 100 m, 1/pk 3030-690 3MM Chr roll, 19 cm x 100 m, 1/pk 3030-700 3MM Chr roll, 23 cm x 100 m, 1/pk 3030-704 3MM Chr roll, 27 cm x 100 m, 1/pk Grade GB003 10426880 GB003 blotting sheets, 10 x 10 cm, 50/pk 10427810 GB003 blotting sheets, 15 x 15 cm, 100/pk 10427812 GB003 blotting sheets, 15 x 20 cm, 100/pk 10427813 GB003 blotting sheets, 16 x 18 cm, 100/pk 10427818 GB003 blotting sheets, 20 x 20 cm, 100/pk 10426890 GB003 blotting sheets, 30 x 60 cm, 25/pk 10427826 GB003 blotting sheets, 46 x 57 cm, 100/pk 10426892 GB003 blotting sheets, 58 x 60 cm, 50/pk Grade GB005 10426972 GB005 blotting sheets, 15 x 15 cm, 25/pk 10426981 GB005 blotting sheets, 20 x 20 cm, 25/pk 10426994 GB005 blotting sheets, 58 x 58 cm, 25/pk