Question 1

Why do IG units have sealant leakage?

Accepted Answer

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.

Question 2

How can I prevent sealant leakage in insulated glass units?

Accepted Answer

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.

Question 3

Can equipment problems cause IG sealant leakage?

Accepted Answer

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

Question 4

Does manual sealing increase the risk of leakage?

Accepted Answer

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.

Question 5

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

Accepted Answer

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.

Feature Stories & Articles

Global Demand for High-Performance Insulating Glass Surges: Why 2025 Is a Turning Point for Smart Window Manufacturing

LIJIANG Glass Expands Global Service Network to Better Support International Clients

LIJIANG Glass to Showcase Automatic Glass Protective Film Applicator at FENESTRATION BAU China 2025

EASTGLAZ | LIJIANG Makes a Grand Debut! Showcasing Cutting-Edge Glass Machinery at GLASSTECH ASIA 2025 Indonesia

The Era of Smart Glass Machinery: Five Key Solutions to Boost Production Efficiency

Global Glass Industry Accelerates Towards Intelligent and Green Transformation

Glass Machinery Guide: Cutting, Polishing, and Tempering Solutions

YaoHua Breaks Through with Stable Mass Production of Ultra-Large Low-E Coated Glass

LIJIANG Presents Smart Glass Solutions at VITRUM25

LIJIANG Glass Showcases Innovation at Mumbai Glass Exhibition 2025

Laminated Glass Cutting Machine – Efficient Cutting Solution for Laminated Glass

How to Tell if Your Windows Are Energy Efficient Enough?