WJX-1011S — Water-Based Heat-Seal Adhesive
High-Solids Universal Grade

A high-solids water-based polyurethane heat-seal adhesive with excellent flow and substrate wetting. Coat it, dry it, and the base becomes a single-side heat-seal substrate: reactivation bonding with pressure seals dialysis paper, nonwovens, glass fiber and film laminates. Peel strength is tunable with a water-based tackifier (5–10%).

Solids 55 ± 2% EtO sterilization compatible Thermal reactivation bonding Adjustable peel strength No fiber residue MOQ 100 kg · 1 kg samples

Typical Technical Data

AppearanceMilky white liquid
Solids content55 ± 2%
Viscosity (25 °C)3,500–4,500 cps
pH8.0 (non-ionic)
Breaking strength> 280 kg/cm²
Elongation> 300%
Tensile strength> 580 kg/cm³
Tack retention4–5 min
Heat-press temperature120 °C
Dry coat weight3–7 g/m² (frame) · 11–13 g/m² (full surface)
TackifierWater-based, 5–10% addition (tunes peel strength)
StorageSealed, cool, frost-free · 0–35 °C · 12 months

Substrates: dialysis paper × PE / PET / PP films, dialysis paper × Tyvek®, Tyvek®-to-Tyvek® laminates, nonwovens and glass fiber.

Sterilization: cured adhesive forms a porous structure suitable for Ethylene Oxide and other sterilization processes; pouches remain vacuum-purgeable.

A Materials Partner for Medical Packaging Converters

COA with every batch; SDS and technical documentation on request. Package-level validation (ISO 11607) is performed by the converter on the final structure — we support it with consistent quality and joint testing.

Handling: keep sealed in a cool place, protect from frost. Stir gently before use for homogeneity.

Test WJX-1011S on your line

1 kg samples ship fast — tell us your substrate and sealing equipment.

Request a Sample