PA 79

Description

PA-79 — Additive to Increase Strength & Clarity of Packaging Materials

What Is PA-79?

PA-79 is a grafted elastomeric blend that increases the strength and clarity of both virgin and recycled plastic packaging materials. Used by film and sheet manufacturers across India, PA-79 improves mechanical properties, surface quality, and processing efficiency — all at low dosage.

Benefits of PA-79

PA-79 delivers a combination of mechanical, optical, and processing improvements that matter to film and sheet converters:

Increases elongation strength — tougher film, fewer breaks during downstream use
Improves surface finish — better aesthetics for visible packaging
Increases clarity — clearer film, more suitable for transparent and food-grade applications
Reduces carbon deposition and carbon black spots on the film / sheet — fewer reject lots from contamination
Increases melt flow — reduces machine load, saves power, and increases production rate
Effective at low dosage — high performance with minimal cost impact per kg

Applications — Polymer-Wise Compatibility

PA-79 is formulated to work across a wide range of film and sheet compounds — both pure virgin systems and the cost-driven reprocessed/filled blends that dominate Indian film extrusion:

Virgin LLDPE + Virgin LDPE + Virgin Metallocene
Virgin HM-HDPE + Virgin LLDPE / LDPE + Filler
Virgin HM-HDPE + Reprocessed LDPE + Filler
Reprocessed HM-HDPE + Virgin LLDPE + Filler
Reprocessed HM-HDPE + Reprocessed LDPE
Virgin LDPE + Filler
Virgin HM-HDPE + Filler
Reprocessed LDPE + Filler
Reprocessed LDPE

End-Use Industries

PA-79 is used across the following industries:

Food Grade Packaging
Liner
Virgin Tarpaulin
Plastic Sheet

Recommended Dosage

0.3% to 1% (w/w) of the total batch size. Dosage may vary depending on the actual formulation.

Lower end (0.3–0.5%):
Higher end (0.7–1.0%):

For best results, optimise the dosage on your line based on the filler load and recyclate percentage.

Packing & Storage

Packaging: 25 kg bags
Storage: Store in normal and dry conditions

Faq

What is PA-79 used for?

PA-79 is a grafted elastomeric additive used to increase the strength and clarity of plastic packaging films and sheets — for both virgin and recycled plastic compounds. It is widely used in food grade packaging, liner film, tarpaulin, and plastic sheet production.

Which polymers can PA-79 be used with?

PA-79 is compatible with virgin LLDPE, LDPE, Metallocene, HM-HDPE, and their reprocessed and filled blends. It works equally well in virgin compounds, reprocessed compounds, and mixed virgin+recycled+filler systems.

How does PA-79 improve film clarity?

PA-79 is a grafted elastomeric blend that improves the compatibility of polymer chains and fillers during extrusion. This results in better dispersion, improved surface finish, reduced haze, and clearer film output.

Can PA-79 be used in recycled plastic film?

Yes. PA-79 is specifically formulated to perform in both virgin and recycled plastic packaging materials — including reprocessed LDPE, reprocessed HM-HDPE, and their filled variants.

Does PA-79 reduce carbon spots in plastic film?

Yes. One of the key benefits of PA-79 is that it reduces carbon deposition and carbon black spots on the film and sheet — directly cutting the number of rejected lots from contamination defects.

Does PA-79 improve production rate?

Yes. PA-79 increases melt flow, which reduces machine load and saves power. The result is higher production rate at the same energy input.

What is the recommended dosage of PA-79?

The recommended dosage is 0.3% to 1% (w/w) of the total batch size. The exact dosage depends on the formulation — particularly the filler content and the ratio of virgin to reprocessed material.

How is PA-79 supplied?

PA-79 is available in 25 kg bags and should be stored in normal, dry conditions.

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