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Polyurethane Resin PU-303

Summary: PU-303 is a high-hardness aromatic polyurethane filling resin with strong setting and excellent filling for leather mid coats and base-coat sealing; it tightens loose grain and fills pores and defects, and can be blended with medium-hard and ultra-soft resins of the same series to adjust coating hardness.

  • Model: Polyurethane ResinPU-303
  • Published: 2026-08-12
  • Views: 58
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Product Range

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Details

Product overview

PU-303 is a high-hardness aromatic polyurethane filling resin with strong setting and excellent filling for leather mid coats and base-coat sealing; it tightens loose grain and fills pores and defects, and can be blended with medium-hard and ultra-soft resins of the same series to adjust coating hardness.


Physical and chemical index


Type

Aromatic polyurethane resin emulsion Appearance Emulsion free of mechanical impurities and agglomerates pH value

7.0-8.5

Viscosity

100-350mPa·s

Film hardness / softness High film hardness, fast drying and strong adhesion


Core advantages

1. Strong setting tightens loose and sagging grain.

2. Blends freely with ultra-soft / medium-hard resins; three grades cover every hand feel.

3. Fast drying boosts assembly-line capacity.


Applications: dress-shoe upper leather, corrected-grain bags, genuine leather sofa upholstery, base-coat filling for synthetic leather, etc.


Packaging and storage

IBC or 25 kg / 200 kg packaging

Store sealed at room temperature in a cool, dry, ventilated place away from light and heat. Shelf life 6 months; use within 30 days after opening.


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