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PVC pastes: plastisols, organosols, hydrosols I - What?

SpecialChem / Aug 4, 2004

PVC is a performing but relatively stiff, brittle resin processed with the heavy machinery of thermoplastics. Its plasticization discovered in 1928 by The BF Goodrich Company opened the door to: * New processing methods by liquid ways thanks to PVC pastes * New applications on a large scale due to the flexibility and the improved behaviour at low-temperatures. Paste processes consume roughly 4-9% of the total PVC that is to say more than 10% of the flexible PVC. Common liquid processing methods allow manufacturing: * Floorcoverings /CV-Flooring, wallcoverings, textile coatings, automotive underbody coatings, seam sealants, metal coating, can coating, coil coating, leather coating * Leathercloth * Foam * Weatherstripping * insect and sun screen * Cap closures * Glove and other dipping applications * Toys, playballs * Inks * Adhesives… Depending on the compound and the rheology, PVC plastisols can be poured, pumped, sprayed, or cast in relatively thick sections without blistering, the system containing only active components excluding water or solvents.

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