The vision of Sparklike is to Become the Global Standard to Measure Insulating Gas – Every Glass Gets Measured. The reason is that the challenge of the insulating glass industry have been confirming the correct filling degree and ensuring that the initial gas concentration will remain inside the insulating glass unit (IGU). The industry has thought “Since you do not see it, you do not have measure it”. Therefore, we want to make inert gas visible and measure every IGU.
The correlation of gas fill and performance
The gas fill in Insulating Glass Units (IGUs) impacts in their thermal insulation and long-term performance. However, without proper measurement, there’s no way to verify if the IGU’s gas fill meets industry standards or if it has been compromised during manufacturing or installation. Unmeasured IGUs may contain insufficient gas levels, reducing insulation performance by up to 30% and leading to potential condensation, energy loss, and customer complaints.

The Importance of Gas Fill Measurement
- Ensures Energy Efficiency – Proper gas fill reduces heat transfer and enhances insulation.
- Guarantees Compliance – Meets standards like EN 1279-3 for insulating glass performance.
- Prevents Warranty Issues – Detects underfilled or leaking IGUs before they reach customers.
- Supports Quality Control – Provides documented proof of gas concentration for every unit.
Quality Control and Cost Reduction in IGU Manufacturing
Effective quality control is essential not only for ensuring the performance of sealed units, but also for reducing manufacturing-related costs. Undetected issues such as insufficient gas fill, leaks, or process deviations can lead to rework, scrap, warranty claims, and customer complaints—all of which increase production expenses and harm brand reputation. By verifying gas fill levels during production, manufacturers can identify faults early, avoid costly corrective actions, and ensure that every IGU meets industry standards and customer expectations. Consistent measurement and documentation of gas concentration support a more efficient production process, resulting in fewer defects, improved reliability, and long-term savings.
Read more from our blog post 7 Ways to Reduce Manufacturing Related Quality Costs.
Sparklike’s Solution: Non-Destructive Gas Measurement
At Sparklike, we believe that every IGU’s gas fill should be measured to ensure quality, performance, and reliability. Our non-invasive gas measurement devices, including Sparklike Handheld™ and Sparklike Laser™, allow manufacturers and quality control professionals to verify gas fill levels without breaking the unit—making reliable quality assurance easier than ever.
Don’t leave IGU performance to chance.