Home > Products > Other special additives > German technical background VOK-S 740 Styrene volatilization inhibitors Used in unsaturated polyester resins replaces BYK-S 740
German technical background VOK-S 740 Styrene volatilization inhibitors Used in unsaturated polyester resins replaces BYK-S 740
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Product Details
Brand Name: | vok specialty chemistry | Place of Origin: | China | Model Number: | VOK-S 740 |
Type: | Other, Styrene volatilization inhibitors | Usage: | Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents, Water Treatment Chemicals |
Product Description
German technical backgroundVOK®-S 740 styrene monomer volatilization inhibitor for unsaturated polyester resin
VOK®-S 740 Styrene volatilization inhibitor for unsaturated polyester resins. Reduces the volatilization of styrene monomer in phthalate resin, up to 90%. Does not affect the interlayer adhesion of laminated polyester resin.
Product Information
Chemical composition of paraffin-containing hydroxyl polyester solution
Typical materialized data
The data presented on this data page are typical values only and are not technical indicators of the product.
Acid value:<7 mg KOH/g
Density (40 °C): 0.86 g/ml
Refractive index (40 °C): 1.456
Flash point: 66 °C
Purchase form: paste
Storage and transportation
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 740 is a highly effective additive for reducing styrene monomer volatilization in phthalate resins for use in mold opening processes. The use of this product does not affect interlayer adhesion. Recommended Use: VOK®-S 740 is particularly recommended for phthalate resins and can also be used in isophthalic acid resins.
Recommended dosage
0.5-1% 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
Under continuous agitation, VOK®-S 740 should be added to the resin before other formulation components are added. For easier addition, it is recommended to melt the product (not to exceed 40°C) and stir liquid VOK®-S 740 into the resin. If it does not melt, add 5-20% styrene monomer to make an ointment, and then dissolve into the resin. The storage time of VOK®-S 740 and styrene monomer mixture should not exceed 24h, and the dispersion is uniform before processing.
Special considerations
In non-thixotropic resins, VOK®-S 740 has a tendency to flocculate during storage and precipitate on the resin surface. In the case of delamination, the resin must be stirred before processing. Among non-thixotropic resins, VOK®-S 740 can be used with 0.2-0.5 % VOK®-LP W 6236 for good storage stability.
Contact Us
- Guangzhou Situyuan Chemical Co., Ltd
- Contact nameliaolijun
- Phone86-020-29863024
- AddressPanyu District Guangzhou,Guangdong
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