Dibasic Lead Phthalate has excellent thermal stability,
light stability (UV radiation), dispersion, excellent
electrical properties such as volume resistivity, dielectric
strength, electric insulation, etc.
Its primary application is as heat stabiliser in the preparation
of PVC compounds. PVC compounds stabilised with DBLPh show maximum
retention of their physical properties when aged for prolonged
periods. Additionally, cable coverings incorporating DBLPh provide
the maximum practical insulation resistance both immediately after
compounding and during the subsequent life of the cable. Consequently
cables covered with a DBLPh stabilised PVC compound are used in the
manufacture of electric blankets, television sets, under floor
heating and general thermal insulation.
It is suitable for use with all types of pigmented PVC compounds
and also finds application as a "Stabiliser-Kicker" in
preparation of foamed PVC. It is effective in both rigid and flexible
formulations for mouldings, extrusions and calendered products such as
cable sheathing, rainwater fittings and window frame profiles. It is
very effective when used in conjunction with Tribasic Lead Sulphate.