Polyurethane Spray Blend Polyols VS-3is 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
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to co-work with you for a
long term relationship. 3). How about the price? Can you make it cheaper? We always take the customer's benefit as the top priority. Price is
negotiable under different conditions, we are assuring you to get
the most competitive price. 4). Do you offer free samples? Samples with free charges ,freight is on your account . 5). Are you able to deliver on time? Of course ! we specialised in this line for many years,many
customer make a deal with me because we can deliver the goods on
time and keep the goods top quality! 6). What are your payment terms ? Any third party payment ? We usually accept T/T, L/C. 7).Can I visit your company and factory in China? Sure. You are very welcomed to visit our company.