Many formulators working on water‑based coatings encounter issues where finished products turn white, peel, or delaminate after cooking tests, failing inspections and causing frequent delivery delays. The root cause lies in insufficient heat‑and‑humidity resistance of the base resin.

This 3618 high‑temperature‑resistant water‑based polyurethane features dense cross‑linking, low water absorption and outstanding boiling‑water resistance. Its modified aliphatic structure delivers yellowing resistance of grade 4‑5 and low‑VOC eco‑friendly performance. Easy to apply, it can be diluted with water and is suitable for spraying, roller coating and gravure printing. Compatible with PET, aluminum foil composite varnishes, plastics and metal coatings, it reliably withstands cooking and sterilization challenges. Feel free to contact us for inquiries.