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    Related: Cationic Polymer PEI Cationic Starch
    • Polyamide Epichlorohydrin (PAE) CAS 68583-79-9

    Polyamide Epichlorohydrin (PAE) CAS 68583-79-9

    Polyamide Epichlorohydrin, also called PAE resin or polyamidoamine-epichlorohydrin, CAS 68583-79-9, is a cationic wet-strength resin supplied for papermaking. Confirm the required solids, pH and grade, then request a quotation with COA/TDS/SDS for bulk supply.

    • CAS: 68583-79-9
    • Synonyms: Polyamide-polyamine-epichlorohydrin, Wet strength agent, PAE resin, Polyamidoamine-epichlorohydrin, Epichlorohydrin-polyamide polymer
    • Einecs: 614-622-0
    • Grade: Industrial Grade / Paper Grade
    • Package: 200kg/drum, 1000kg/IBC tank
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    Product Description

    Polyamide Epichlorohydrin CAS 68583-79-9 is a cationic, water-soluble wet-strength resin, also known as PAE resin or polyamidoamine-epichlorohydrin, with EINECS 614-622-0.

    Synonyms: Polyamide-polyamine-epichlorohydrin; Wet strength agent; PAE resin; Polyamidoamine-epichlorohydrin; Epichlorohydrin-polyamide polymer.

    CAS: 68583-79-9.

    As a polymer resin, it is described by its solids content, pH and grade rather than a molecular formula.

    It appears as a light yellow to amber transparent liquid.

    The cationic PAE polymer adsorbs onto negatively charged pulp fibers and cures through covalent cross-links during drying and storage.

    These water-resistant bonds remain intact when the paper becomes wet, keeping more tensile strength.

    It is used for facial tissue, hand towels, kitchen paper, wet wipes, kraft paper, decorative base paper and impregnated paper.

    It can also improve dry strength and may serve as a retention aid or flocculant in selected wet-end applications.

    It is commonly available at about 12.5% or 25% solids, with a pH of 3.0–5.0 at 25 °C.

    A common addition point is at or near the machine chest or stuff box to allow enough contact time with fibers.

    Paper made with PAE is more resistant to repulping than paper using temporary wet-strength additives.

    Store in a cool, dry, well-ventilated area in tightly closed containers away from moisture and heat.

    Protect from moisture and keep containers closed when not in use.

    Confirm appearance, solids content, pH, viscosity and grade as required.

    Use suitable eye and skin protection during handling, and wash skin contact with soap and water.

    Confirm packaging with the requested quantity and destination requirements.

    The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

    For an RFQ, state the intended application, required grade, solids content, quantity, packaging, destination and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is Polyamide Epichlorohydrin (PAE) CAS 68583-79-9 used for?

      A: PAE is a cationic, water-soluble wet-strength resin used mainly in papermaking for facial tissue, hand towels, kitchen paper, wet wipes, kraft paper, decorative base paper, and impregnated paper. It can also improve dry strength and may serve as a retention aid or flocculant in selected wet-end applications.
    • Q:

      How does PAE resin increase wet strength?

      A: The cationic PAE polymer adsorbs onto negatively charged pulp fibers and cures through covalent cross-links during drying and storage. These water-resistant bonds remain intact when the paper becomes wet, so the sheet keeps more tensile strength compared with untreated fiber.
    • Q:

      What are the typical solids content and pH of this PAE wet-strength agent?

      A: The supplied PAE resin is commonly available at about 12.5% or 25% solids and typically has a pH of 3.0-5.0 at 25 degrees C. The product is a light yellow to amber transparent liquid; the exact grade should be selected from the technical data for the intended furnish.
    • Q:

      What dosage and addition point are recommended for papermaking?

      A: Dosage depends on target wet/dry tensile ratio, fiber furnish, and machine conditions, and is normally added per ton of dry pulp. A common addition point is at or near the machine chest or stuff box to allow enough contact time with fibers; the optimum should be confirmed by mill trial.
    • Q:

      How does PAE affect repulping and recycling of broke?

      A: Because PAE forms permanent wet strength, paper made with it is more resistant to repulping than paper using temporary wet-strength additives. Broke recovery generally benefits from higher repulping temperature and an appropriate alkaline treatment or mechanical energy, so mill-specific conditions should be validated.

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