APPLICATIONS	For PDF version click here.

Significant savings on raw material costs

Realized savings can vary from $0.02-$0.06 per lb, depending on percentage of PolyMax™ used.
 

To obtain a rough idea of potential savings in your application, click here for the savings calculator.

Improved Productivity

• Significantly reduced cycle times.
• Improved processablity, reduced amps.
• lower pressure, and higher outputs.

Better part performance

• Increased stiffness.
• Improved ESCR.
• Reduced warpage.

Product Description

PolyMax™ CaCO3 concentrates are designed to improve the performance of blow molding applications. PolyMax™ concentrates contain 76%-80% of fine ground, surface treated CaCO3 combined with various polyolefin carrier resins.

Products Available

PolyMax™ LC 80% CaCO3 in LLDPE to balance cost & performance.

PolyMax™ HD 76% CaCO3 in HDPE to maximize stiffness and top load.

Typical usage levels of PolyMax™ CaCO3 concentrates:
10-20% depending on targeted application.

What to Expect During Processing

No temperature changes are needed. Lower extrusion amps and pressure are often experienced due to lower melt viscosity. Minor adjustments to the shot size may be required to compensate for extended parison. Final part appearance will be relatively un-affected:

• Un-pigmented parts will appear uniformly white.
• Colored parts may require reformulation of the color masterbatch.
• PolyMax™ concentrates can be added using standard additive feeders.

Productivity Gains

A major advantage of PolyMax™ concentrates is their ability to increase the thermal conductivity of the part in blow molding processes. Addition of mineral results in cooler parts; cycle times are be reduced, sometimes by as much as 30%. The final bottle or part will have significantly less warpage even at the reduced cycle time.

Physical Property Improvements

PolyMax™increases part density based on the loading level. Part weight should be maintained to maximize material cost savings. The reduction in wall thickness required to maintain part weight is 5-11% depending on the usage level of PolyMax™. This will result in:

• Impact and top load strength unaffected.
• ESCR improved (Stress Crack Resistance).
• Part will feel stiffer.