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Polyurethane (PU)

  • Polyurethane (PU)
  • Polyurethane (PU)

Polyurethane (PU)

CAS No.: 9009-54-5
Molecular Formula: C3H8N2O
Molecular Weight: 466.61078
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product description

Polyurethane (PU)—fully known as polycarbamate—is a highly moldable polymer material formed through the polycondensation reaction of polyols and polyisocyanates, and it exhibits excellent mechanical properties.


Chemical Properties

AppearanceColorless to light yellow transparent / slightly turbid viscous liquid
Gardner Color≤2#
Density1.05~1.25 g/cm³
Viscosity1000~20000 mPa·s (1~20 Pa·s)
Solid Content (Non-Volatile Matter)30%~50% (Solvent-based); 35%~60% (Water-based)
NCO Group Content0.5%~25%
Hydroxyl Value (Polyol Component)40~100 mgKOH/g
Flash Point≥200°C
Solvent SystemDMF, Methyl Ethyl Ketone (Butanone), Ethyl Acetate, Toluene (Solvent-based type)
Moisture Content≤0.1%


Product Usage

Polyurethane resins have an extremely wide range of applications—primarily in the production of foams, coatings, adhesives, and elastomers—and are deeply integrated into the construction, automotive, textile, and electronics industries.

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FAQ

Q1：Does it support customized products?

A1：Yes, it does. Formulations can be adjusted and customized production can be carried out according to customer's industry needs and performance parameters.


Q2：Can samples be provided?

A2：We support free sample delivery and testing services to meet customers' early testing needs.


Q3：Is the product quality stable? 

A3：With full-process quality inspection and control, there are minimal batch differences, and the purity and stability strictly meet the standards.


Q4：What is the shipping cycle?

A4：For regular inventory, we offer quick delivery. For customized orders, we arrange production according to demand and ensure timely delivery.

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