Thin Wall Packaging

The Thin Wall packaging market is composed of open-top containers and lids that are used in both food and non-food applications. Open-top plastic containers are typically used for:

• frozen or fresh food
• paint
• adhesives
• cosmetics
• pharmaceuticals

Borealis' material grades provide benefits such as:

• increased throughput for converters due to reduced cooling time and high flowability
• design freedom for the brand owner to create new, complex packaging shapes
• superior stackability through high stiffness and excellent creep properties to reduce supply chain costs and improve efficiency
• excellent transparency which lets consumers see through the packaging while providing safe storage and easy opening

Recommended grades for thin wall packaging

Borealis has developed three transparent propylene grades especially for the Thin Wall Packaging market: Borpact SG930MO, the RJ470MO and the BJ356MO.

Borpact SG930MO is perfectly suited for high transparency, deep freeze applications like ice cream packaging, where no compromise must be made between transparency and high impact resistance. It achieves a drop test at -20°C of 2 meters versus 10 cm for standard transparent polypropylene MFR 20 (1.2 mm wall thickness, 700 ml filled). 
 
RJ470MO is ideally suited for transparent consumer packaging requiring very good flow. For a 15 g container with wall thickness of 0.38mm, we can achieve an 11% reduction in cycle time versus an MFR of 45. RJ470MO also has an excellent combination of mechanical properties, providing high stiffness while maintaining good impact resistance.

BJ356MO is a heterophasic polypropylene with excellent flow characteristics for demanding applications. BJ356MO provides a step change in flow and impact balance, meeting the demand for lightweight products with high stiffness. Despite its very good flow, BJ356MO has low taste and odour characteristics and a white based tint. This makes it perfect for portion pack thin wall food containers such as 250 g margarine tubs.