Liquid stabilisers
- The liquid mixed metal stabilisers are used in several PVC flexible applications like: calendered films; extruded profiles; injection moulded, soles, footwear; extruded hoses and plastisols (flooring, wall covering, artificial leather, coated fabrics, toys).
- Liquid mixed metal stabiliser systems are based on Ba, Zn, Ca, Mg or K carboxylates. In general liquid mixed metals like Ba-Zn, Ca-Zn and Mg-Zn require the addition of co-stabilisers, antioxidants and organo-phosphites to provide optimum performance. The co-stabilisers are usually imparted to the liquid mixed metal stabiliser system. To adjust the viscosity different solvents are used including hydrocarbon solvents and plasticisers.
VOC improvements
In recent years, different technologies have been introduced to the industry to improve VOC (volatile organic compounds) emissions in flexibles articles, particularly in relation to the building and construction industry. Low emission and low odour are the key characteristics required by the industry and reductions in VOCs can be achieved using Ca/Zn solids, phenol-free liquids and pastes. The available stabilisers are suitable for all kind of PVC applications: transparent, filled, pigmented, technical and food contact. In case of pastes, the liquid carried is generally Epoxidized soybean oil or plasticisers.
The European calcium organic stabilisers association (ecosa)
Calcium-based stabilisers (including Ca-Zn & organic) for food contact, medical applications, and lead replacement.
The European tin stabilisers association (etinsa)
Tin-based stabilisers used primarily in rigid applications including food contact use.