Chemical foaming agents for the injection moulding of PVC are mainly powders that are added in the compounding step, although some granular masterbatches and expandable microspheres are used too. Tramaco supply a range of products tailored to specific applications and resulting in different foaming characteristics and cell structures.
We also offer chemical foaming agent pastes, predispersed in plasticiser for easy mixing as well as expandable microspheres.
Our Technical Service Department will be glad to help you choose the best product from our range for your application. Please use our contact form for your enquiries.
Some of our products for the foaming of PVC plastisols are listed below:
|Foaming Agent Powders||decomposition temperature||remarks|
|TRACEL® NCX 155 VP 62||120 - 200°C||low temperature and food contact applications, endothermic|
|TRACEL® K 135/70||ca. 135°C||low temperature applications, exothermic|
|TRACEL® K 145 LD||ca. 145°C||chemical embossing, exothermic|
|Foaming Agent Pastes|
|TRACEL® P 5205||ca. 210°C||azodicarbonamide dispersed in plasticiser, exothermic|
|TRACEL® P 5160||ca. 160°C||OBSH dispersed in plasticiser, exothermic|
|Basic Foaming Agents|
|TRACEL® OBSH 160 NER||ca. 160°C||phlegmatised OBSH, exothermic|
|UNICELL® D 200 A||ca. 210°C||azodicarbonamide, exothermic|
|UNICELL® D200 LK||ca. 210°C||azodicarbonamide, vinyl wall covering, exothermic|
|UNICELL® D 300 T||ca. 210°C||modified azodicarbonamide, low emission grade e.g. for automotive applications, exothermic|
|UNICELL® KD7||ca. 145°C||modified azodicarbonamide, chemical embossing for vinyl flooring, exothermic|
|UNICELL® MS 180 D||ca. 180°C||expandable microspheres, a physical foaming agent encapsulated in a polmeric shell|
Our product recommendations and technical advice are based on careful investigation and are to our best knowledge but are without guarantee. Users have to test for themselves whether our products perform properly in their application.