Why do IG units have sealant leakage?

Sealant leakage is usually caused by incorrect sealant temperature or viscosity, poor spacer bending accuracy, glass size deviation, surface contamination, or unstable 2K sealing ratios.

How can I prevent sealant leakage in insulated glass units?

Maintain correct sealant temperature, ensure precise spacer bending, keep glass surfaces clean, use stable A/B sealant ratios, and consider using an automatic sealing robot for consistent quality.

Can equipment problems cause IG sealant leakage?

Yes. Butyl extruder temperature errors, 2K sealant mixing issues, worn nozzles, and inconsistent machine pressure can all lead to poor sealing performance and leakage.

Does manual sealing increase the risk of leakage?

Manual sealing often leads to uneven sealant lines and inconsistent corner filling. Using an automatic IG sealing robot significantly reduces leakage and improves product stability.

What is the best long-term solution for reducing IG sealant defects?

Investing in automated equipment—such as an IG sealing robot, automatic spacer bending machine, and calibrated 2K sealant pump—offers the most consistent and long-term solution to eliminate sealing problems.

Is LIJIANG Glass a factory or a trading company?

LIJIANG Glass is a professional manufacturer specializing in glass machinery and insulating glass production lines. We design, produce, and assemble equipment in our own factory to ensure strict quality control and efficient delivery.

What is the delivery time for your glass machinery?

Normally, the delivery time is 15–20 working days after receiving the deposit. For standard models, we usually have stock in the factory. If you have urgent requirements, we can arrange priority production.

What payment methods do you accept?

We accept common international payment methods including T/T (bank transfer), L/C, and other negotiable terms depending on the order volume and customer region.

How does LIJIANG Glass provide after-sales service?

We provide full technical support after delivery, including online troubleshooting, installation guidance, video assistance, and on-site service if necessary. Our engineers ensure smooth operation and long-term maintenance support for every customer.

Can LIJIANG Glass customize glass machinery?

Yes, we can customize glass processing equipment according to your factory layout, glass size, and production requirements. Our design team provides tailored solutions to optimize efficiency and cost performance.

Automatic Insulating Glass Production Line

LIJIANG Glass Automatic Insulating Glass Production Line is a high-performance insulating glass production line designed for efficient IGU (Insulating Glass Unit) manufacturing. This fully automatic double glazing production line integrates glass washing, drying, spacer frame assembly, desiccant filling, butyl coating, automatic pressing, and secondary sealing into one continuous production process. With advanced PLC control and intelligent automation, the automatic insulating glass machine delivers high production efficiency, precise assembly, excellent sealing performance, and consistent glass quality while reducing labor costs. It is suitable for manufacturing double-glazed, triple-glazed, Low-E, and architectural insulating glass. As a professional IGU manufacturing equipment supplier with over 30 years of experience, LIJIANG Glass provides reliable, energy-efficient, and customizable solutions for glass processors worldwide.