245fa Base Polyurethane Spray Foam Blend Polyols

• Customization: Available
• CAS No.: 9003-11-6
• Formula: C5h10o2
• Model NO.: Vspray-3
• EINECS: 618-355-0
• Molecular Principal Chain: Carbon Chain Polymer
• Color: Blue
• Cream Time: 3-5 Seconds
• Gel Time: 6-10 Seconds
• Part a:Part B: 100:100-105
• Transport Package: 200kg/Drum
• Trademark: VICUSVIDA
• Origin: China
• HS Code: 3907299090

Product Description

Vspray-3 is spray blend polyols, blowing agent is 245fa instead of HCFC-141B, it reacts with isocyanate to produce foam which has excellent performances, which are as follows,
  1) Fine and uniformity cells
  2) Low thermal conductivity
  3) Perfect flame resistance
  4) Good low temperature dimensional stability.
It applies to all kinds of thermal insulation engineering which uses the spray technology, such as cold rooms, pots, large-scale pipelines etc.
Physical Properties

Appearance                   Hydroxyl Value                mgKOH/g Dynamic Viscosity (25 ºC)       mpa.s Specific gravity (20 ºC )           g/ml Storage Temperature             ºC Storage Stability               month

Pale yellow to brown viscous liquid 200-300 100-200 1.12-1.20 10-25 6

Recommended Ratio

	pbw
Vspray-3 blend polyols Isocyanate	100 100-105

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

Cream Time                  s Gel Time                     s

3-5 6-10

Foam Performances

Items	Test Method	Index
Spray Density                 Closed-cell Rate           Initial Thermal Conductivity(15ºC)        Compressive Strength Adhesive Strength    Elongation at break Dimentional Stability  24h  -20ºC       24h   70ºC Water Absorption                      Oxygen Index	GB 6343 GB 10799 GB 3399 GB/T8813 GB/T16777 GB/T9641 GB/T8811 GB 8810 GB 8624	30-40kg/m^3   ≥90%       ≤24mW/(m.K)   ≥150kPa   ≥120kPa   ≥10%   ≤1%               ≤1.5%   ≤3%   ≥26