- ▸ Neutral sizing: Reduces water penetration in neutral/alkaline papermaking.
- ▸ Water resistance: Improves liquid hold-out in paper and paperboard.
- ▸ Specialty grades: Sizing for printing, writing, packaging, and specialty papers.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Alkyl ketene dimer (CAS 144245-85-2), AKD, is a hydrophobic neutral-sizing agent for the paper industry. Applied as a wax or emulsion, it reduces the rate of aqueous-liquid penetration into paper and paperboard, improving water resistance in printing, writing, packaging, and specialty grades.
Frequently Asked Questions
What is AKD (alkyl ketene dimer) used for?
AKD is a hydrophobic neutral-sizing agent for the paper industry. Applied as a wax or emulsion in neutral/alkaline papermaking, it reduces the rate at which aqueous liquids penetrate paper and paperboard, improving liquid hold-out in printing, writing, packaging, and specialty grades.
What is the CAS number for AKD neutral sizing agent?
AKD (alkyl ketene dimer) carries CAS 144245-85-2. We supply against this identity; lot-specific identity and active content are confirmed on the Certificate of Analysis (CoA) per shipment.
What HS code is used for AKD sizing agent?
AKD ships under HS 3809.92 — finishing agents and like products of a kind used in the paper or like industries. Confirm the destination-country tariff classification with your customs broker.
Is AKD supplied as a wax or an emulsion?
AKD is used in both forms — as a solid wax for melt/emulsification on site, and as a ready-to-dose aqueous emulsion for the wet end. Tell us your application and we'll quote the form and active level that match your line; grade and active content are stated on the CoA.
What is the cost of bulk AKD sizing agent?
Bulk AKD is priced by form (wax vs. emulsion), active content, and volume. We supply in drums, totes, and IBCs to manufacturers — request a bulk quote with your target tonnage and packaging and we'll return current pricing and lead time.