Water based Flexible PU foam is an environmental protection type using water as blowing agent, with good performances of low density ( 8~10kg/m 3 ), open cell, flame retardant( B3 grade) etc.
During spray process in site, the breathing small open cell filled with air, without producing toxic gas to destroy the Ozone layer( traditional blowing agent: F-11, HCFC-141B), which is environment friendly, low-carbon new construction materials.
This spray PU foam with performances of thermal insulation, gas resistance, damp proof insulation,water proof and sound absorption, it can give us a more quiet, more healthy and more energy saving buildings.
It applies to all kinds of thermal insulation engineering which uses the spray technology, such as cold rooms, pots, large-scale pipelines and construction metope etc.
Physical Properties
Appearance Hydroxyl Value mgKOH/g Dynamic Viscosity (25 ℃ ) mpa.s Specific gravity (20 ℃ ) g/ml Storage Temperature ℃ Storage Stability month |
Pale yellow to brown viscous liquid 200 -3 0 0 100-200 1.12-1.20 10-25 6 |
Recommended Ratio
|
pbw |
D JD-105 blend polyols Isocyanate |
100 100-105 |
Reactivity Characteristics
(The temperature of the system is 20 ℃ ,and the exact value varied depending on processing condition)
Cream T ime s G el T ime s |
3-5 6-10 |
Foam Performances
items |
Test Method |
Index |
Spray Density Closed-cell Rate Initial Thermal Conductivity( 15 ℃ ) Compressive Strength Adhesive Strength Elongation at break Dimentional Stability 24h -20 ℃ 24h 70 ℃ Water Absorption Oxygen Index |
GB 6343 GB 10799 GB 3399 GB/T8813 GB/T16777 GB/T9641 GB/T8811
GB 8810 GB 8624 |
> 40 kg/m 3 ≥90% ≤24mW/(m.K) ≥150kPa ≥120kPa ≥10% ≤1% ≤1.5% ≤3% ≥26 |