KUPA 429

General description and applications

KUPA 429 is polyurethane rigid foam system for spray

KUPA 429 reacts with MDI offering fast curring  good adhesion to the walls and  glving  foam with good insulating properties   

Due  to its good flow the foam in cabinet is homogencously   distributed and show  ,in addition ,a good structure and absence of holes .

Chemical-physical characteristics

Parameter

 

Value

 

Unit of measure

 

Appearance *

 

Light yellow to brown yellow

 

 

 

Colour  *

 

 Trams  parent  liquid

 

 

 

Viscosity Brookfield 25°C *

 

100-200

 

mPa.s

 

Specific gravity at 20° C

 

1.12-1.20

 

g/m L

 

Parameter under control

Mixing ratio polyol ready for use                                                           CUP Test at 20°C

KUPA 429                  at 20/25°C

100 p.b.v

         Isocom                    at 20/25°C      

100 p.b.v

 

Parameter

value

Unit of measure

Cream time

3-5

Sec.

Gel time

8-10

Sec.

Tack. Free time 

512

Sec.

Free rise Density

35

Kg/m³

                                                                                     

 

 

 

 

 

 

 

Foam properties

Parameter

 

 

Method

Dimensional  stability

Length

Height

Thickness

Density kg/m²

 

℅ var . after 48hrs at 25°C

100mm

100mm

25mm

35

UNI 8060

℅ var . after 48hrs at +70°C 90℅ U.R

100mm

100mm

25mm

35

 

                                                                                     

Compressive strength 10℅ parallel to rise

>150kca

UNI 6350/1968

Closed cells correct value

>90℅

 

class

B2

 

Thermal Conductivity 10°C

19.0 m W/m K

A STMC518

Test methods

Test methods (MA) referred to in the chemical – physical characteristics are available on request

 

 

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