Top Injection Moulding Companies

Custom plastic moulding is a process used in a broad spectrum of industries. The advantages are clear, so long as the company you choose to do your work manages to avoid quality shortcomings that result from material and processing issues. As you assess their engineering and production staff, their facilities, and the toolroom, remember that top quality is your main concern. Choose a custom plastic moulding company where quality is king.

Why Choose Custom Plastic Moulding?

Injection moulding is the process of choice when you want a high-volume of parts that require little post production work due to the finished appearance of the parts after injection. To produce complex parts, you can use inserts in the mold as well as filters for strength, and even employ multiple materials. The process can be completely automated and scrap reused to create parts that are cost effective and green.

Custom plastic moulding uses a vast array of polymers or resins to create the parts. Over the past 20 years, nearly 750 new materials per year were added to the base of 18,000 that were known in 1995. Advances in polymer science have improved the properties of various thermosetting plastics such as epoxy or phenolic, and thermoplastic such as nylon, polyethylene, and polystyrene. If you want to experiment with the properties of different materials, the sky's the limit in what you can choose as you aim for the perfect part.

Potential Problems In The Process

As with any process, the results from custom plastic moulding may not be what you would expect. Your anticipated fine finish can be marked by blistering, burn marks, uneven colour, flow marks, deformities, and a host of other problems. Most defects result from equipment, material, or processing errors.

For example, here are a few common errors and their causes:

  • Blistering, which creates a raised area on the part due to the tools being too hot
  • Colour streaking results from improper mixing or too little material in process
  • Non-fill or short shot results in a partial hard as a result of too low an injection speed or pressure, lack of material, a cold mold, or lack of gas
  • Burrs or flash come from overpacking the mold, dirt contaminants in the tooling, or using a damaged mold
  • Contamination with materials that can affect appearance or performance result from foreign materials finding their way onto the tool surface or into material supplies

Finding The Most Quality-Conscious Producer Available

Though errors can creep into the operations of any company, there are certain things to look for when selecting a plastic moulding company that will assure that errors are few--and if they do occur, are promptly attended to. One of the first things that you should ask is, "What type of quality assurance system do they have?"

You want a firm with an ISO 9000 Registered Quality System that lays out their procedures and shows how they can retrace their steps to find and correct errors. You also want signs of commitment to concepts such as continuous improvement, mistake proofing, and mock recalls of product for traceability. Having systems like this in place will assure that errors will be few, problems will be dealt with quickly, and prophylactic measures will be in place to prevent future problems.

When you're looking for a custom plastics injecting firm, consider Baytech Plastics, a company based in in Ontario with over 70 years of experience in custom plastic moulding. Contact us today on our website or by calling 705-526-7801.

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