Polyurethane rigid foam spray insulation
USD $2 - $2.3 /Ton
Min.Order:1 Ton
Shanghai Dongda Polyurethane Co., Ltd.
DQT-501C is spray blend polyols, foaming agent is HFC-365mfc/HFC-245fa instead of HCFC-141B, it reacts with isocyanate to produce foam which has excellent performances as follows,
1.fine and uniformity cells
2.low thermal conductivity
3.perfect fire resistance
4.excellent low temperature dimentional stability
It applies to all kinds of thermal insulation engineering which use the spray, such as storage warehouse, large pots, large-scale pipelines and construction roof and all types of abnormal thermal insulation projects.
This is our second factory we use our own polyurethane to built it.
Physical Properties
Appearance pale yellow transparent viscous liquid
Hydroxyl Value mgKOH/g 200-300
Dynamic Viscosity (25 °C) mPa.s 100-200
Gravity (20 °C ) g/ml 1.12-1.20
Storage Temperature °C 10-25
Storage Stability month 6
Recommended Ratio pbw
DQT-501A 100
Isocyanate 100-105
Reactivity characteristics (the exact value varied depending on processing conditions)
Cream time s 3-5
Gel time s 6-10
Foam Performance
Spray density GB 6343 35 kg/m3
Closed-cell rate GB 10799 ≥90%
Initial thermal conductivity (15°C) GB3399 24mW/(m.k)
Compressive strength GB/T8813 ≥ 150 Mpa
Adhesive strength GB/T 16777 ≥ 120 Mpa
Elongation at break GB/T9641 ≥ 10%
Dimentional stability 24h -20°C GB/T8811 ≤1 %
24h 70°C ≤1.5%
Water absorption GB 8810 ≤3%
Oxygen index GB 8624 ≥26
Quality Testing Facility: