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Help CenterGerman Technical Background VOK-S 750 Styrene Volatilization Inhibitors Does Not Affect the Interlayer Adhesion of Laminated Polyester Resin Replaces BYK-S 750
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German technical background VOK®-S 750 styrene monomer volatilization inhibitor for unsaturated polyester resin
VOK®-S 750 N Styrene volatilization inhibitor for unsaturated polyester resins containing dicyclopentadiene (DCPD), isophthalic acid and vinyl ester resins. Does not affect the interlayer adhesion of laminated polyester resin.
Product Information
Chemical composition
A mixture of wax with polar components
Typical materialized data
The data presented on this data page are typical values only and are not technical indicators of the product.
Density (40 °C): 0.85 g/ml
Flash point: > 100 °C
Purchase form: paste
Storage and transportation
Temperature sensitive. Store and transport in the temperature range of 20-50 °C. Delamination or turbidity may occur during storage and transportation. Disperse evenly before use.
Application areas
Room-temperature curing resin system
Product features and benefits
VOK®-S 750 N was specifically developed for volatilization inhibitors in DCPD-containing resins that make it difficult to form surface films due to the good solubility of VOK®-S 740. VOK®-S 750 N reduces volatilization without affecting interlayer adhesion, and also has good results in isophthalic acid resins and vinyl ester resins.
Recommended dosage
0.3-1% additive dosage (purchased form) is based on total formulation.
The above recommended addition amount is for reference, and the suitable addition amount needs to be determined by a series of tests.
Incorporation method and processing guidance
VOK®-S 750 N must be stirred well before adding to ensure homogeneity of the product. VOK®-S 750 N should be added to the resin before other formulation components are added with continuous agitation. To ensure that the good crystal structure of VOK®-S 750 N is not affected, the product must not melt.
Special considerations
In non-thixotropic resins, VOK®-S 750 N during storage has a tendency to flocculate and precipitate on the resin surface. In the case of delamination, the resin must be stirred before processing.
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