... paper, white cardboard, coated paper, kraft board paper and high-strength corrugated paper, and be able to replace the imported ... : white emulsion PH value: 2.5 ~5.5 (25 degrees Celsius) Solubility: soluble in water under normal temperature 4. Product Features ... winter,and storage in 4-25 degrees Celsius; avoid direct exposure, and keept in the shade place. High Efficient Paper Surface Sizing Agent ...