As described above, SEKISUl PVC-HA has a higher melt viscosity than PVC but its decomposition temperature is nearly the same as that of PVC. This means a narrower molding temperature range than that of PVC. Compared with PVC, gelation of PVC-HA is accelerated rapidly, causing more heat generation. Pay full attention therefore to the following points when molding SEKISUl PVC-HA.

(1) Use more stabilizer (1.3 to 2 parts) than PVC.
(2) Use more lubricant (1.5 to 3 parts more in weight) than PVC to adjust gelation speed.
(3) Set molding temperature to 10 to 20°C
(4) Closely control temperature than PVC. Minimize retention within the molding machine.

Blending examples of SEKISUl PVC-HA are shown below.

* Each SEKISUl PVC-HA is available in various grades. But, when initial clearness is required, use the least coloring grade. Grade, stabilizer and lubricant must be selected according to usage and heat resistance. Extrusion blending examples and molding conditions are shown below.

(1)Blending examples of calendar
Blending example of transparent calendar sheet: Heat deflection temperature 85'C
HA-15F Tin stabilizer Higher fatty acids Fatty acids esters MBS	100 (parts in weight) 1.5 - 2 0.5 - 1 1.5 - 2 8 - 15
Blending example of transparent calendar press: Heat deflection temperature 85-90'C
HA-24F Tin stabilizer Higher alcohols Processing aids MBS	100(parts in weight) 2 - 3 0.3 - 0.5 0.5 - 1 5 - 10
Blending example of opaque calendar press: Heat deflection temperature 95-100'C
HA-24F Lead stabilizer Metallic soaps Ester wax Processing aids MBS	100(parts in weight) 3 - 4 2 - 3 0.5 - 1 0.5 - 1 5 - 10

(2) Extrusion blending example
Heat deflection temperature : set at 90'C			Extrusion molding condition
HA-24F PVC(P=1050) Lead stabilizer Metallic soaps Ester wax Calcium carbonate Processing aids MBS	85(parts in weight) 15 3 - 4 2 - 3 0.5 - 1 5 - 10 5 - 10 5 - 10		Extruder Screw Die Screw rpm Output Setting temperature C1 C2 C3 AD D1 D2	65mmf single (L/D=22) C • R=3.0 Profile die 20rpm 30kg/hr 150'C 160'C 170'C 175'C 185'C 190'C

(3) Injection blending example
Heat deflection temperature : set at 85'C			Injection molding condition
HA-15F PVC(P=800) Tin stabilizer Metallic soaps Ester wax Higher fatty acids Processing aids MBS	90(parts in weight) 10 3 - 4 0.5 - 1 0.5 - 1 0 - 1 0 - 1 5 - 10		Injection Mold weight Nozzle Pellet Setting temperature C1 C2 C3 Nozzle Clamping pressure Injection pressure Injection time Cooling time	(Mold clamping force: 150ton 80z.) Box (100g) 3mm f pre-drying, 80'Cx 3hr 150'C 155'C 160'C 170'C 80kg/cm2 70kg/cm2 6 sec 15 sec