Ezebond
A1 How to coat Wet inorganic fillers with Ezebond

Ezebond 412

EB 412 is either emulsified in water using 0.5% to 1% of non-ionic emulsifier or mechanically dispersed in water using a high-speed mixer. The emulsion/dispersion is used to coat wet ground/precipitated calcium carbonate. The coated filler slurry is filtered, dried and used typically in filled rigid PVC systems. (Example: PVC pipes and sections)

A2 How to coat Dry inorganic fillers with Ezebond:

Ezebond 816
Ezebond 927
Liquid titanate needs to be properly coated on the filler surface to ensure good performance. Coating should only be done on untreatedfillers/extenders. Coated or activated fillers should not be used.

1. Ezebond is first diluted with equal weight of low boiling alcohol/ketone solvent.

2. The untreated filler is charged in a high-speed mixer. The mixer is run at low speed for a couple of

minutes to preheat the filler and remove absorbed surface moisture.

3. The diluted titanate solution is added slowly within a minute by spraying or pouring.

4. The mixing is then increased to its maximum and mixing is continued for about 12 minutes until uniform coating is achieved.

√ Filler coated with EB 927 can be used directly for PP and PE applications.

√ Filler coated with EB 816 or EB 412 can be used directly for rigid PVC applications.

A3 How to use of EB 412A in Flexible PVC/Plastisols Systems:

Ezebond EB 412A is mixed with a small quantity of plasticizer and sprayed on the resin and untreated filler mix in a high-speed mixer or blender. After thorough mixing is achieved, other ingredients like stabilizers, pigments, lubricants, balance plasticizer, etc are added in the required sequence.

Applications: Film, sheeting, flooring, plastisols for slush moulding, casting gloves, tubing, coated fabrics etc.

A4 How to use of Powder Ezebond in Polymer Systems:

Ezebond 1019 A
Ezebond 1019 B

Thermoplasts: (PP, HDPE, PVC)

1. The quantity of Ezebond 1019 A required is first calculated using Table 1

2. Mix Ezebond 1019 A with the filler in a high-speed mixer for 12-15 minutes. The filler used should be of untreated variety i.e. without any surface coating such as Stearic, Stearate etc.

3. Add the resin to the above mixture and blend thoroughly.

4. Add pigments and other additives as required and blend thoroughly. Extrude the blend using a mixing type extruder such as a twin screw extruder

Thermosets: (PU, Epoxy, Polyester):

Ezebond 1019 B is thoroughly mixed with the resin in which fillers are to be added. Fillers, pigments, additives, etc are then added and dispersed as per usual practice.

Other Thermoplastics: (PS, Eng. Plastics)

The procedure is similar to that followed for polyolefins.

Properties

A few examples based on customer feedback:

  • In 40% CaCO3 filled flexible PVC sheeting, use of EB412A reduced gelling time by 30% and gelling torque by 25%. Tensile strength increased by 20%.

  • Impact strength of HDPE filled with 30% CaCO3 coated with EB927 increased by 10% over that of the virgin HDPE