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VESTOLIT B 7521 Ultra

Polyvinyl chloride for paste processing

VESTOLIT B 7521 Ultra is a paste-forming micro-S-PVC homopolymer which is suitable for producing low viscosity pastes with almost Newtonian flow and good storage stability.

The product is particularly well suited for paste applications with a low plasticiser content and can be used for coating applications, dip coating and casting.

In the manufacture and processing of pastes, VESTOLIT B 7521 Ultra is distinguished by its low viscosity and low moisture absorption, properties which are particularly suited to rotational casting, dip coating and dip moulding. In coatings, the excellent drum release characteristics and good contact fusion capability result in smooth surfaces in glass-fibre mat impregnation of CV coatings. B 7521 Ultra may also be processed in mechanical foams.

 
 
Application Solid Foam
Coated fabrics


Floor coverings

Wallpapers, wall coverings



Canvas coating



Unsupported layers, films



Dipping, casting


Spray coating

●  recommended     ○  feasible   

 
 
Property Method Unit Value *
K value

DIN EN ISO 1628-2

-

75
Viscosity number

DIN EN ISO 1628-2

cm3/g

145
Apparent bulk density

DIN EN ISO 60

g/cm3

0,3
Sieve analysis - retained on 0.063 mm sieve

DIN EN ISO 1624

%

< 1
Water content according to K. Fischer

DIN 53 715

%

≤ 0,3
pH value of the aqueous extract

DIN EN ISO 1264

-

7
Paste viscosity 1.5 /s


Pa s

1,8
Paste viscosity 45 /s


Pa s

2,2

* The figures quoted above are typical values, and do not form part of the specification. 100 parts PVC, 60 parts DINP - measured in a rotary viscometer with a defined shear gap at 25 °C after ageing for 2 hours.

 
 

Contact

VESTOLIT GmbH
Paul-Baumann-Str. 1
45772 Marl
Germany

T. +49 2365 9549-888
F. +49 2365 9549-4000
products.vinyl.eu@mexichem.com

 
 

Data Sheet

 
 
 
 

VESTOLIT GmbH
Mexichem Business Group Vinyl