Teel is passionate about working in regulated markets and has the resources to meet customer needs. We have experience providing certified products, including the certification of active ingredients and product composition. Plastics are divided into classes I to IV and groups A to C, with class I being the lowest hazard level and group A expanded plastics being the highest hazard level. The blue card is different from the Plastics Recognition Program (yellow card) in that it publishes plastic materials and components intended for 3D printing.
This advanced course covers the detailed process of blow film extrusion, including the hardware and operations of the blow film line. We manufacture innovative cast films and lightweight composites based on polypropylene films that solve real problems. We have been testing plastics since 1941 and are proud to serve the world's leading plastics manufacturers. The yellow card is usually applied to traditional manufacturing technologies such as blow molding, extrusion, film blowing, injection molding, rotational molding and vacuum molding.
The 3D printing or additive manufacturing industry is rapidly growing and poses a challenge to plastic manufacturers to consider how this technology will affect their markets, operations and products. However, something that is wrapped in plastic sheets could be considered exposed since plastic sheets do not absorb water. A Class III product is allowed to contain a limited amount (5 percent or less by weight of unexpanded plastic or 5 percent or less by volume of expanded plastic) of Group A or Group B plastics.
