Frequently Asked Questions

We’ve compiled answers to some of the most common questions about Electro-Seal’s manufacturing services, products, and capabilities. Whether you’re exploring a new supplier or looking to place a custom order, this page will give you a quick overview of who we are and how we work.

FAQS

Electro-Seal is recognized as a North American leader in fused glass-to-metal products, especially hermetically sealed sight glasses. Our reputation has been built on decades of engineering excellence, product reliability, and industry trust since 1946.

We serve high-demand industries with both high- and low-pressure sight glass solutions, offering American-made quality, custom manufacturing capabilities, and fast lead times. Our products are used worldwide in critical environments — from pharmaceutical plants to aerospace systems — because they work, and they last.

Don’t See Your Question Here?

We’re happy to help. Whether you’re an engineer, buyer, or new customer, our team is here to answer your specific questions or provide detailed technical support.

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