Rigid Polyurethane AB Closed Cell Spray Foam

Introduction of Rigid Polyurethane AB Closed Cell Spray Foam

Shandong Hightop Machinery Co., Ltd is the leader in polyurethane technology . Our company is mainly in engaged in Spray Foam Machine, Polyurethane Foaming Machine, Spray Foam Equipment, Spray Foam Insulation Machine also have Airless Spray Equipment ,small excavator , Road Construction Machinery , Packing Machine ,snack machine .,chemical material, air polisher

Polyurethane (PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links. While most polyurethanes are thermosetting polymers that do not melt when heated, thermoplastic polyurethanes are also available.

Polyurethane polymers are traditionally and most commonly formed by reacting a di- or poly-isocyanate with a polyol. Both the isocyanates and polyols used to make polyurethanes contain, on average, two or more functional groups per molecule.

Parameter of Polyurethane Spray Material

Appearance Pale yellow to brown viscous liquid

Hydroxyl Value mgKOH/g 310-380

Dynamic Viscosity (25 ℃) mpa.s 100-200

Specific gravity (20 ℃ ) g/ml 1.12-1.20

Storage Temperature ℃ 10-25

Storage Stability month 6

Recommended Ratio

pbw

DQT-501A blend polyols 100

Reactivity Characteristics

(The temperature of the system is 20℃,and the exact value varied depending on processing condition)

Cream Time S 3-5

Gel Time S 6-10

Free rise density kg/m3 20-23

Foam Performances

Closed-cell Rate ≥90%

Initial Thermal Conductivity(15℃) ≤24mW/(m.K)

Compressive Strength ≥100kPa

Adhesive Strength ≥100kPa

Elongation at break ≥100kPa

Dimentional Stability 24h 70℃ ≤2%

Water Absorption ≤3%

Oxygen Index B2

Images of Polyurethane Spray Material

About Us

Customers Visit

Exhibition

Contact