Petroleum and coal are essential for modern life. The petroleum and coal industry involves transforming crude petroleum and coal into useable products.

Plastic caps and plastic plugs are important to the petroleum and coal prodcuts manufacturing industry. Our plastic plugs and plastic caps protect pipes and flanges during processing and also prevent dirt and contamination from interfering with processing.

Harman Corporation stays on the cutting edge of plastic caps and plastic plugs manufacturing. Our designs meet industry standards and ensure efficiency for you and your workers.

With both standard and custom-dip molded products, Harman Corporation will have a plastic cap or plastic plug for your application. We also provide free samples. If you need a custom application, call us today and we will work with you to create the perfect custom dip-molded application.

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