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Good Quality Polyurethane Rigid Foam - Donspray 502 HCFC-141b base blend polyols – INOV

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  • Good Quality Polyurethane Rigid Foam - Donspray 502 HCFC-141b base blend polyols – INOV

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All we do is often involved with our tenet " Purchaser to start with, Rely on initially, devoting over the food stuff packaging and environmental defense for Adhesive Film, High Transparency, Casting Pu Gel Insole Resin, We have four leading products. Our products are best sold not only in the Chinese market, but also welcomed in the international market.
Good Quality Polyurethane Rigid Foam - Donspray 502 HCFC-141b base blend polyols – INOV Detail:

Donspray 502 HCFC-141b base blend polyols

INTRODUCTION

DonSpray 502 is spray blend polyols with HCFC-141B as blowing agent, 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 fire resistance

  4) excellent low temperature dimentional stability.

It applies to all kinds of thermal insulation projects which use the spray, such as cold rooms, large pots, large-scale pipelines and construction out-wall or inner-wall etc.

PHYSICAL PROPERTY

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

200-300

100-200

1.12-1.20

10-25

6

RECOMMENDED RATIO

 

pbw
DonSpray 502 blend polyols

Isocyanate MDI

100

100-105

Reactivity Characteristics (Component temperature is 20℃, the actual value is varied according to pipe diameter and 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（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

≥32kg/m3

≥90%

≤24mW/(m.K)

≥150kPa

≥120kPa

≥10%

≤1%

≤1.5%

≤3%

≥26

The data provided above are typical value, which are tested by our company. For our company’s products, the data included in the law do not have any constraints.

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Good Quality Polyurethane Rigid Foam - Donspray 502 HCFC-141b base blend polyols – INOV detail pictures

Related Product Guide:
We emphasize progress and introduce new solutions into the market each year for Good Quality Polyurethane Rigid Foam - Donspray 502 HCFC-141b base blend polyols – INOV , The product will supply to all over the world, such as: Sierra Leone, Chile, Algeria, We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information and we will offer you competitive price list then.

    • The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
    5 Stars By Nora from Moldova - 2018.07.26 16:51
    The factory workers have a good team spirit, so we received high quality products fast, in addition, the price is also appropriate, this is a very good and reliable Chinese manufacturers.
    5 Stars By Roxanne from Swaziland - 2017.01.28 19:59
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