Tin Intermediates / PVC

Tin Intermediates are catalysts in electrodeposition coating and esterification reactions while PVC Additives act as stabilizers and plasticizers that impart a higher durability of PVC plastic end products

• Tin Intermediates are designed for coating industry applications such as automotive paints, glass and tin coatings, as well as for catalysts used in various plastics.
• PVC Stabilizers and Plasticizers for the global PVC manufacturing industry provide protection against damage caused by heat and during processing, for example in lubrication systems.

Tin Intermediates & Stabilizers

Extensive and long-standing experience in tin intermediates has enabled SONGWON to make use of its expertise in alkyl tin oxides to refine processes for producing organo-tin compounds based on butyl and octyl oxide (DBTO and DOTO). Applications include electrodeposition coatings, tin catalysts and stabilizers for PVC.

Butyl and octyl oxides are the main catalysts used in electrodeposition coating technology, which is applied extensively in the global automotive industry.

Tin catalysts based on butyl and octyl oxides support various chemical reactions such as esterification.

Tin stabilizers prevent degradation of PVC resins, which require particularly high heat resistance.

Customers can select from a wide range of SONGWON’s SONGCAT™ Organo-Tin Intermediates, depending on applications and requirements.

PVC Additives

The third most widely produced synthetic plastic polymer after polyethylene (PE) and polypropylene (PP), polyvinyl chloride (PVC) comes in two basic forms: rigid and flexible. PVC is used in construction applications such as pipes, doors and windows, as well as in the packaging, automotive, household and furniture, and medical sectors. Flexible PVC today often replaces rubber in plumbing, electrical cable insulation, imitation leather, signage and inflatable products.

Since PVC is heated to soften it during processing, it needs to be stabilized to prevent decomposition resulting from elimination of the hydrogen chloride it contains. Stabilizers help to improve productivity and enhance the resistance of PVC to light, weathering and heat aging, making end products more durable and preserving their appearance. They are almost always supplied as application-specific blends and their main components are metal soaps, metal salts and organo-metal compounds. The choice of heat stabilizer depends on various factors, including technical requirements, regulatory approval and cost. As a leading manufacturer of PVC Additives SONGWON is your competent supplier.