Borouge RD208CF Cast CPP Random Copolymer Polypropylene | High Clarity, Low-Temp Heat Seal & Strong Metallizing Adhesion

Product Overview

High Clarity & Low-Temperature Heat Seal, Superior Metallization AdhesionBorouge RD208CF is a premium random copolymer polypropylene engineered for cast CPP film production, manufactured via Borouge’s proprietary Borstar bimodal polymerization technology. Formulated without slip additives, anti-block agents or calcium stearate, it achieves ultra-clean pellets with minimal additive migration. This 8.0 MFR high-flow resin enables steady high-speed film production, delivering exceptional transparency, low haze, low heat-seal initiation temperature and powerful hot tack strength. It retains consistent surface tension post corona treatment, delivering tight, delamination-free bonding for vacuum metallization. The material meets global food contact regulations, and works well for co-extruded heat-seal layers, metallized base films, flexible food packaging and textile wrapping films. Supported by steady imported stock and balanced overall performance, it is a top choice for manufacturers producing high-grade CPP films.

Basic Product Specifications

All test figures listed are typical values for reference only. The product consists of 100% virgin transparent pellets free of gels and foreign impurities to guarantee consistent performance across batches. Goods are packed in original 25kg factory bags, and each batch comes with an official COA to realize full quality traceability.

Density: 0.900–0.910 g/cm³ (ASTM D792)

Melt Flow Rate (230°C/2.16 kg): 8.0 g/10min (ASTM D1238, typical value)

Flexural Modulus: 750 MPa (ISO 178)

Melting Point: 140°C (ISO 3146)

Vicat Softening Temperature: 122°C (ISO 306 A50)

Film Elongation at Break (MD/TD): 550–750% (ISO 527-3)

Dart Impact Strength: 23 J (ISO 7765-2, 25 μm film)

Performance Note: Low gel content and scarce crystal spots; finished film light transmittance reaches ≥92% with haze ≤1.8%. It combines premium transparency and stable running performance on high-speed production lines.

Core Product Advantages

High-flow grade for high-speed processing, high gloss and outstanding clarity

Thanks to controlled molecular structure from Borstar technology and 8.0 melt flow rate, the resin offers a broad processing window for non-stop high-speed production, cutting film breakage and crystal spot defects. Finished films feature mirror-like high gloss and low haze, and retain clear visual effect after printing and metallization, matching strict appearance requirements of luxury packaging.

Additive-free formula, long-lasting adhesion for metallized layers

No slip or anti-block additives are added, eliminating small molecule migration and surface contamination. Surface tension stays stable after corona treatment, enabling tight bonding with vacuum metal layers without white speckles or layer separation, perfectly suited for high-barrier metallized composite films.

Low-temperature wide-range heat sealing, excellent hot tack performance

Heat sealing can start at as low as 110°C, 15–20°C lower than standard PP grades to reduce production energy consumption. It features a wide heat-seal window and strong hot tack strength, preventing seal fracture and liquid leakage during high-speed bag making, and keeping stable sealing performance after long-term storage.

Food-safe & low-odor, flexible with reliable low-temperature puncture resistance

This low-odor pure resin complies with EU 10/2011 and domestic food contact standards, safe for direct contact with hot and cold food products. Films balance flexibility and mechanical toughness, resisting brittle cracking under low temperature conditions. Even thin-gauge films provide reliable puncture and tensile resistance for full product protection.

Main Application Fields

Food Packaging Cast Films: Co-extrusion heat-seal layers, vacuum metallized food films, candy twist films, cooked food packaging bags

Industrial Composite Substrates: Textile wrapping films, protective films, multi-layer barrier composite CPP

Functional Films: High-end stationery transparent films, pharmaceutical packaging cast films, metallizing transfer substrates

Processing & Storage Guidelines

Processing Parameters

Barrel Temperature: 200–230°CDie Temperature: 220–240°CChill Roll Temperature: 25–40°CFilm Thickness: 15–80 μmNote: This grade is customized for cast CPP production. Adjust heating parameters according to actual machine conditions to avoid thermal degradation from excessive temperature.Drying Guidance: Pellets stored under normal conditions require no drying. If pellets absorb moisture, dry at 60–70°C for 1 hour and cool to room temperature before feeding.

Storage Requirements

Store pellets in cool, dry and well-ventilated warehouses. Keep away from open flames, rainwater, direct sunlight and odorous goods to avoid moisture absorption and odor cross-contamination. Pallet stacking height shall not exceed 5 layers. The shelf life is 2 years under standard storage conditions.

Quality Assurance & Supply Service

All supplied materials are 100% genuine virgin Borouge RD208CF polypropylene. Original batch COA and food contact compliance certificates are provided for each shipment. We maintain stable imported spot inventory all year round, supporting free sample testing, small trial orders and full-truck / full-container bulk deliveries. Our professional technical team offers dedicated CPP film processing guidance to satisfy diversified production and procurement demands of CPP manufacturers.

6. Frequently Asked Questions

Q1: What core strengths does RD208CF hold compared with regular CPP heat-seal PP grades?A: It contains no slip or anti-block additives, delivering far stronger metallization adhesion. Low-temperature heat sealing cuts power consumption and fits fast-speed bag making lines. Ultra-low gel content and high transparency greatly lower defective rates for high-end packaging products.

Q2: Can this material be used for direct food-contact packaging?A: The low-odor pure resin meets EU 10/2011 and domestic food contact standards. Batch compliance documents are available for applications including cooked food packaging and candy wrapping films.

Q3: How to solve metallization delamination and white speckle issues?A: Raise corona power and extend the interval between corona treatment and metallization. Slightly lower die temperature to reduce small molecule migration and strengthen bonding force of metal layers.

Q4: Can it be blended with other PP grades? What blending ratio is recommended?A: Pure RD208CF achieves the best transparency and heat-sealing performance. If cost control and higher rigidity are required, mix with 20%–30% low-MFR homopolymer PP to balance processability and mechanical properties.

Q5: What delivery cycle and technical support can you offer?A: Direct shipment from the Middle East ensures consistent spot supply without stockout risks. We provide professional CPP parameter guidance and targeted solutions for common defects such as high haze, heat-seal cracking and metallization layer separation.

7. Product Summary

Borouge RD208CF is a high-end cast random copolymer PP manufactured via Borstar bimodal technology. It features stable melt tension for high-speed production, ultra-high transparency, low-temperature wide-range heat sealing, and migration-free metallization adhesion. Fully compliant with food contact regulations, it matches all kinds of metallized composite and food heat-seal cast film equipment. Backed by steady imported supply, it is widely applied in food packaging, textile wrapping films and premium metallized base materials, serving as a cost-effective raw material option for high-grade CPP film producers.

Please contact us for full technical datasheets, compliance certificates, original COA reports, free samples and real-time bulk quotations.