About Silicone Flange Caps

Harman Corporation offers functional protective Silicone Flange Caps. Made with true quality, these silicone flange caps are durable and long lasting. They’re great for numerous applications, such as masking off threaded studs or protrusions.

Our silicone flange caps are molded with an air vent for a relief valve, perfect for applications where internal pressure may be a problem. Choose to vary the size and color to meet your specific requirements with our Custom Molding