Sparklike Customer Cases

How insulating glass manufacturers verify quality with Sparklike in production and on site

FREOR Elevates Refrigeration Quality Control with Sparklike Laser Portable™

FREOR, a leader in commercial refrigeration solutions, has enhanced its quality control processes by integrating the Sparklike Laser Portable™ device. This non-destructive technology allows FREOR to accurately measure the insulating gas concentration in their refrigeration equipment’s glass units without compromising the integrity of the units. The portability and precision of the Sparklike Laser Portable™ enable efficient quality assurance at various stages of production, ensuring that FREOR’s products meet the highest standards of energy efficiency and performance.

IGU Manufacturer ToughGlaze Monitors Gas Concentration with Sparklike Handheld NOVA™

ToughGlaze, a UK-based supplier of commercial glass with over 30 years in the industry, needed a way to log and export gas concentration data for every batch of sealed units it produced, not just measure it. To close that gap, ToughGlaze became the first company in the world to purchase the Sparklike Handheld NOVA™, supplied by Sparklike’s official UK and Ireland distributor, Inagas.

By linking barcode scanning directly to job numbers, ToughGlaze now traces gas fill measurements by shift, hour, and day, testing 1 in every 10 units, ten times the regulatory minimum, and gives customers documented proof of quality on every order.

Because I bought your detector [Handheld], as long as the IGU are filled with argon gas, we check the concentration to ensure the lowest argon concentration is 85% before shipping out from the factory. The Product Quality Ratio have been improved to 99.9% from lack of acknowledgement.

We have been following the development of this device [Laser Portable] for some time now and believe it to be the right moment to make this investment in order to strengthen our Quality control procedures.

The biggest benefit is exceeding the requirements of quality. The product meets the criteria that is set, and it can be traced and we have a proof of it.

The reason why we have Sparklike Laser Integrated™ installed into our IG-line is that our customers require an assurance that all their IGUs’ gas fill is tested

The Newest Sparklike Customer Cases

Customer cases

CASE: IGU Manufacturer ToughGlaze checks gas concentration levels with Sparklike Handheld NOVA

Discover the full case study & results »

Passive Windoor Verifies Gas Fill Rate in High-Performance Insulating Glass Production

Customer cases

CASE: Passive Windoor Verifies Gas Filling Rate in High-Performance Insulating Glass Production

Discover the full case study & results »

Lipoplast integrates gas measurement into production to confirm argon fill levels and ensure long-term insulating glass performance.

Customer cases

Case: Ensuring the Invisible Quality of Insulating Glass with Sparklike Laser Portable

Discover the full case study & results »

Quality Assurance in Insulating Glass Manufacturing Through Gas Measurement

Sparklike solutions are widely used across the insulating glass value chain for non-destructive gas fill verification. This includes a broad range of manufacturing and inspection applications:

Insulating glass manufacturers – for production quality control and process optimisation
Window and façade manufacturers – for verifying gas concentration in supplied insulating glass units to ensure final products meet quality specifications
Testing laboratories – for product verification, certification, and compliance testing
Building and quality inspectors – for on-site verification of installed insulating glass units
Commercial refrigeration and display case manufacturers – for ensuring insulation performance and reducing the risk of condensation

Window and Door Manufacturing – Customer Case: SKAALA

Companies Ensuring Quality with Sparklike

Lipoplast

Romanian IGU and window manufacturer Lipoplast inspects every stage of production from glass cutting to final assembly. But their Development Manager identified one critical quality factor that no visual inspection can reach: "The most critical component of an insulating unit, the gas that provides its thermal soul, is also the most invisible."

Lipoplast

By integrating the Sparklike Laser Portable™ directly after sealing, Lipoplast verifies argon concentration before units leave the production hall. Beyond compliance, the measurements act as an early diagnostic — a drop in gas levels can signal that equipment needs recalibration or that a seal has been compromised, catching problems invisible to the eye before they reach a building.

Read how Lipoplast makes the invisible visible — measuring what visual inspection alone can never confirm

Australian Glass Group

Australian Glass Group supplies argon-filled IGUs at 90% fill or higher to window fabricators across New South Wales, Victoria, and Tasmania. The challenge: the production line could target that fill rate, but couldn't confirm it was actually being achieved in every finished unit.

Australian Glass Group

By introducing the Sparklike Handheld™ for random spot checks on finished units during each production shift, AGG gained direct verification of real-world gas fill levels across different job types, sizes, and glass configurations. As their Supply Chain & Quality Coordinator puts it: "Consistency in fill percentage is important to us — it demonstrates that we are doing it right."

Learn how Australian Glass Group verifies argon fill consistency across every production shift

Passive Windoor

Chinese high-performance window and door manufacturer Passive Windoor discovered that controlling gas filling parameters during production is not the same as verifying the actual gas concentration in finished units — and that gap was leaving thermal performance unconfirmed.

Passive Windoor

Since 2022, Passive Windoor has used the Sparklike Laser Portable™ to measure argon concentration directly in sealed, finished IGUs. This moved quality control from process assumptions to measured results — enabling faster detection of deviations, adjustment of filling parameters based on real data, and documented proof that every unit meets their thermal performance targets.

Read how Passive Windoor moved from process assumptions to verified gas fill results on every IGU

Isophon Glas

German IGU manufacturer Isophon Glas integrated the Sparklike Laser Integrated™ into their production line to automate gas fill verification across their entire output and has since committed to a second system for their new IG line.

Isophon Glas

With the Sparklike Laser Integrated™ measuring the majority of production in real time, Isophon can intervene immediately if gas fill levels fall short, even identifying how flatness deviations in toughened panes affect the filling process. The Laser Portable™ runs alongside it as a secondary verification tool, and the investment has delivered measurable cost savings and process optimisation.

See how Isophon automated IGU gas fill quality control across their entire production line

Pilkington IGP

Pilkington IGP in Poland, needed a fast, non-destructive way to verify gas fill levels during IGU production to ensure quality and performance.

Pilkington IGP

Pilkington IGP in Poland invested in the Sparklike Laser Portable to measure gas concentration in double and triple glazed units without damage. Its accuracy is validated by ift Rosenheim, and its ability to handle complex structures made it a key advantage.

Discover how Pilkington IGP ensures reliable gas fill verification in IGU production

SafeGuard Glazing Supplies

UK glass merchant and IGU manufacturer SafeGuard Glazing had long relied on the Sparklike Handheld™ for quality checks but as laminated, triple-glazed, and coated units became a growing part of their output, they were left with products they simply could not verify.

SafeGuard Glazing Supplies

Upgrading to the Sparklike Laser Portable™ gave SafeGuard complete visibility across their entire product range from standard double glazing to the most complex coated and laminated units. The investment forms part of a broader production modernisation programme, ensuring their automated gas filling processes are fully calibrated and every unit leaving the factory is independently verified.

Find out how SafeGuard Glazing achieved complete gas fill verification across their entire IGU range

Huadong Coating

Chinese coating and insulating glass specialist Huadong Coating already used the Sparklike Handheld™ but as their products evolved to multi-cavity IGUs with multiple Low-E coatings, they needed a measurement tool that could keep up.

Huadong Coating

Their existing Sparklike Handheld™ was limited to single-cavity double glazing. Upgrading to the Sparklike Laser Portable™ gave Huadong Coating the ability to verify gas fill in multi-cavity units through coatings, meeting EN 1279-3 accuracy requirements and keeping pace with growing demand for near-zero energy building glass.

Learn how Huadong Coating upgraded their gas measurement capability to match advanced multi-cavity IGU production

Weihai Blue Star

Weihai Blue Star Special Glass, part of Shandong Blue Star Glass Group, supplies premium IGUs for landmark global projects — including the Washington DC Treasury Building and Dutch greenhouses — and needed a reliable way to prove their seal integrity to customers worldwide.

Weihai Blue Star Special Glass Limited Company

To demonstrate the quality of their IGU sealing, Weihai Blue Star submerged a unit in a water tank, then measured the gas concentration immediately after with Sparklike Handheld™. The result: zero gas loss. The non-invasive test confirmed both seal integrity and product performance without damaging a single unit, and with footage compelling enough to share with customers directly.

Watch how Weihai Blue Star proved their IGU seal quality with a Sparklike water tank test

VASGLASS

Vasglass produces high-quality insulating glass units and needed a reliable way to verify gas fill levels, including in triple-glazed units.

VASGLASS

Vasglass faced a challenge when a customer required reliable verification of gas levels in IGUs. While their Sparklike Handheld supported daily quality control, it could not measure triple-glazed units. To meet growing demands for precision and maintain high standards, Vasglass needed a more advanced solution: Sparklike Laser Portable

See how Vasglass upgraded to triple-glazed measurement

Xinruineng Glass Technology

Chinese IGU manufacturer Xinruineng Glass Technology needed a reliable way to verify compliance with China's national standard requiring at least 85% argon concentration in insulating glass units, a threshold that cannot be confirmed without direct measurement.

Xinruineng Glass Technology Co., Ltd

Since 2023, Xinruineng has used the Sparklike Handheld™ as a core part of their daily quality control process. Measuring argon concentration in two seconds without breaking the glass, the device enables high-frequency spot checks on the production line and can also be taken to construction sites when field verification is needed.

Learn how Xinruineng verifies argon concentration to meet China's GB/T 11944 insulating glass standard

Insul-Lite Manufacturing

Canada-based Insul-Lite Manufacturing produces high-quality sealed glass units and marks a milestone as the recipient of the 2000th Sparklike Handheld.

Insul-Lite Manufacturing

Before Insul-Lite Manufacturing adopted Sparklike, they achieved high argon fill rates but lacked a way to verify gas concentration after production. As an IGMAC-certified manufacturer, they needed a more efficient method to consistently confirm compliance. With the Sparklike Handheld, they gained a reliable solution to measure gas fill levels directly on the line, closing a critical quality control gap.

Verify your gas fill levels with confidenc like Insul-Lite Manufacturing

FREOR

FREOR develops commercial refrigeration solutions and produces insulating glass units for its equipment. This requires reliable control of argon levels to ensure energy efficiency and overall performance, while meeting certification standards.

FREOR

After evaluating their options, FREOR selected the Sparklike Laser Portable for its non-invasive measurement and strong industry reputation. With the device in place, FREOR can now verify argon levels without damaging IGUs, provide transparent quality data to clients, and support certification processes. This strengthens quality control, builds customer trust, and ensures consistent compliance with industry requirements.

See how FREOR ensures IGU quality with the Sparklike Laser Portable

Pilkington Nederland

Pilkington Nederland BV produces insulating glass units and strengthened its quality assurance by adopting the Sparklike Laser Portable in its production process.

Pilkington Nederland

Following implementation, Pilkington Nederland BV completed training on the Sparklike Laser Portable, gaining the capability to measure gas fill levels non-invasively. This enables more reliable verification of IGU thermal performance and supports their goal of exceeding quality standards.

See how Pilkington Nederland BV strengthens IGU quality control

Southern Windows

Southern Windows produces aluminium window and door systems and strengthened its IGU quality control by adopting the Sparklike Handheld 3.0 in its production process.

Southern Windows

With the Sparklike Handheld 3.0, Southern Windows can instantly verify gas concentration during production, ensuring consistent IGU quality. The device enables quick adoption with minimal training, improving efficiency across the production line. By measuring gas fill levels reliably, Southern Windows strengthens quality control, meets industry standards, and delivers products that meet customer expectations for durability and performance.

See how Southern Windows improves IGU quality control

MI Windows

MI Windows and Doors, part of MITER Brands, produces high-quality window and door systems and strengthened its IGU quality control by integrating the Sparklike Laser Integrated into its production line.

MI Windows

After evaluating their options, MI Windows and Doors integrated the Sparklike Laser Integrated into their IG production line to enable automated, real-time verification of gas fill levels. Unlike random sampling with handheld devices, the system measures every unit, allowing immediate detection and removal of insufficiently filled IGUs. This improves process control, reduces product reclaim, and provides data for continuous quality monitoring ensuring only compliant, high-quality units move forward in production.

See how MI Windows and Doors achieves full IGU quality control with automated gas measurement

Polypane Glasindustrie

Polypane Glasindustrie produces high-performance insulating glass units and strengthened its quality control by upgrading to the Sparklike Laser Portable.

Polypane Glasindustrie

With the Sparklike Laser Portable, Polypane can perform non-destructive gas measurements on both double and complex triple-glazed units, including those with coatings and laminations. This upgrade enhances their existing quality control process, building on nearly two decades of experience with Sparklike technology and enabling more reliable verification of gas fill levels.

See how Polypane Glasindustrie upgrades IGU quality control

Technoform

Technoform, a global manufacturer of thermally optimized spacer solutions for insulating glass, uses the Sparklike Laser Portable™ to support quality assurance along the entire IGU value chain

Tecnoform

Technoform offers non-invasive IGU gas measurement as a service to its customers at every stage of the value chain — during production, at the end of the line, or in already installed units. The portability, ease of use, and measurement accuracy of the Sparklike Laser Portable™ made it the clear choice over traditional destructive methods.

See how Technoform supports IGU quality assurance across the entire value chain

SKAALA

Finnish window and door manufacturer SKAALA has measured IGU gas concentration with Sparklike devices for nearly 20 years, making gas fill verification a cornerstone of its quality control strategy.

SKAALA

When SKAALA's product range expanded to include triple-glazed and coated glass, their existing device could no longer keep up. Upgrading to the Sparklike Laser Portable™ gave them the ability to measure more glass types faster and without being tied to a power outlet — providing traceable proof of gas fill quality at every step of production.

Discover why SKAALA has trusted Sparklike for IGU gas measurement for nearly 20 years

Szkłoland

Polish glass manufacturer Szkłoland had no way to verify whether their gassing equipment was working correctly until they invested in the Sparklike Laser Portable™ to confirm correct insulating gas fill without breaking a single unit.

Szkłoland

With no non-invasive gas fill control in place, Szkłoland had no certainty that their IGUs met quality standards. The Sparklike Laser Portable™ gave them full confidence in their gassing process, was easy to integrate into existing workflows, and is now used by the entire quality control team on a daily basis.

See how Szkłoland gained full confidence in their IGU gas fill quality

Jiangsu Jiacheng

Chinese specialty glass manufacturer Jiangsu Jiacheng lacked confidence in their own IGU gas fill levels until measuring with Sparklike transformed their quality control and pushed their argon gas pass rate to the highest among competing suppliers.

Jiangsu Jiacheng

Jiacheng initially didn't dare present their argon-filled IGUs to customers, unsure whether units would pass inspection. After introducing the Sparklike Handheld™, they identified where improvements were needed, set a minimum 85% argon concentration threshold before shipping, and raised their product quality ratio to over 95%.

See how Jiangsu Jiacheng went from uncertainty to a 95% product quality ratio

Shanghai Yaohua Pilkington Glass

Shanghai Yaohua Pilkington (SYP), supplying IGUs for demanding European and American projects, needed reliable argon gas fill verification to meet tightening international energy standards and has trusted Sparklike to deliver it since 2005.

Shanghai Yaohua Pilkington Glass

Faced with strict German EnEV code requirements on curtain wall insulation, SYP turned to Sparklike as the only non-invasive argon gas measurement method available. Its ease of use, production-line mobility, and measurement accuracy proved so effective that all SYP subsidiaries adopted the Sparklike Handheld™ across multiple IGU production lines.

Read how Shanghai Yaohua Pilkington meets international IGU standards with Sparklike

Taizhou Tian En Glass Product

Tian En is the global IGU supplier for LG Electronics, producing 800 argon gas filled triple-glazed units daily. Meeting LG's strict argon concentration standards required a more reliable verification method than periodic third-party testing.

Taizhou Tian En Glass Product

As a supplier to one of the world's leading electronics manufacturers, Tian En needed in-house measurement they could trust. The Sparklike Laser Portable™ gave their quality control team the accuracy and mobility to verify argon gas concentration daily without sending units to external labs or breaking the glass.

See how Tian En meets LG Electronics' strict IGU quality standards with Sparklike

Dalian Huaying Glass Products

To prove the long-term performance of their Thermo Plastic Spacer system, Bystronic and Dalian Huaying Glass used the Sparklike Handheld™ to measure argon concentration in IGUs installed 6 years earlier — without removing or damaging a single unit.

Dalian Huaying Glass Products - TPS® by Bystronic.

The non-destructive on-site measurements told a compelling story: after 6 years in an installed building, argon concentration had dropped only 2.4% in total — an annual leakage rate of just 0.4%, well below the EU standard maximum of 1% per year. Only Sparklike's non-destructive technology made this kind of long-term, in-situ verification possible.

Read how Sparklike proved TPS® warm-edge performance after 6 years in a real building

Glaseksperten A/S

Denmark's leading specialist glass manufacturer Glaseksperten integrated the Sparklike Laser Integrated™ into their IG line to give customers documented proof that every single IGU's gas fill has been tested, not just a sample.

Glaseksperten A/S

With over 25 years of experience and a quality-conscious client base across the Nordic region, Glaseksperten needed a fully automated solution to match their reputation. The Sparklike Laser Integrated™ runs as part of a fully automatic quality scanning line, covering both double and triple glazed units through coatings and laminated glass with no manual intervention required.

Find out how Glaseksperten guarantees gas fill documentation for every IGU leaving their line

AGC Interpane

AGC Interpane, one of Europe's major glass processors producing over 250,000 m² of IGUs per year at their Plattling facility alone, replaced invasive lab testing with the Sparklike Handheld™ to gain continuous, non-destructive quality control across their production flow.

AGC Interpane

Before Sparklike, AGC Interpane relied on test laboratories and invasive gas measurements, a process that broke finished units, produced no cumulative data, and created unnecessary cost and waste. The Sparklike Handheld™ gave their QA team instant results, data logging for trend analysis, and the freedom to test at any point in production without damaging a single unit.

Read how AGC Interpane replaced invasive lab testing with instant, non-destructive IGU quality control

Q4Glass

Polish IGU manufacturer Q4Glass takes on the most ambitious and complex glass projects; large formats, huge sizes, demanding specifications. To back that ambition with proof, they integrated the Sparklike Laser Integrated™ into their Glaston JUMBO IG line.

Q4Glass

For Q4Glass, quality documentation is a commercial tool as much as a production one. By controlling and optimizing the gas filling process in real time, they can demonstrate to customers exactly how energy-efficiency and quality standards are maintained, giving them a concrete competitive edge on demanding projects.

Discover how Q4Glass uses automated gas measurement to win ambitious projects and prove IGU quality to customers

Laurier Architectual

Canadian third-generation glass manufacturer Laurier Architectural has built an international reputation for excellence over 65 years. For them, quality control isn't just about compliance, it's their primary source of competitive advantage.

Laurier Architectual

With a return and reject ratio below 0.005%, Laurier's quality record speaks for itself. The Sparklike Handheld™ — recommended by their own customers plays a key role in that result, enabling non-destructive argon measurement at every product change on the line and spot checks by the quality department, ensuring consistency without overfilling.

Learn how Laurier Architectural turned IGU quality control into a competitive advantage

Viridian

Australia's largest glass processor, with over 165 years of leadership in the industry, uses the Sparklike Handheld™ to maintain the stringent quality standards their residential and commercial customers rely on.

Viridian

Known for delivering high-performance, energy-efficient glass products across Australia and beyond, Viridian's production team uses the Sparklike Handheld™ for fast, non-destructive verification of argon gas fill in double-glazed IGUs keeping quality checks quick without compromising a single unit.

Find out how Australia's largest glass processor maintains IGU quality with Sparklike

FAQ

Why do companies measure insulating gas in IGUs?

Many manufacturers and inspectors measure insulating gas concentration to ensure quality, energy efficiency, and compliance with industry standards. Gas fill level affects U-value and long-term performance, so customers use measurement to verify that IGUs meet specifications throughout production and after installation.

Who uses Sparklike solutions for gas measurement?

Sparklike solutions are used across the insulating glass value chain, including IGU manufacturers, window and façade producers, testing laboratories, building and quality inspectors, and commercial refrigeration manufacturers. These applications appear in multiple case studies on this page.

What benefits have Sparklike customers experienced?

Across the customer stories, gas measurement is used to verify product quality, detect deviations early, support compliance efforts, and build confidence in insulating glass performance. For many customers, measurement replaces assumptions with documented proof, improving both internal quality assurance and customer trust.

Can gas measurement be done during production and after installation?

Yes. Many customers use gas measurement during production to support quality control and process optimisation, while others use it on installed insulating glass units to verify performance after delivery or installation. The customer stories on this page demonstrate both production-line and on-site applications.

How does gas measurement help quality assurance?

By providing precise, non-destructive measurement of gas concentration, companies can detect deviations or under-fills early, optimise production processes, and document quality for standards compliance and customer reassurance.

Do all customer cases involve the same type of insulating glass?

No. The customer cases cover a wide range of insulating glass types, including standard IGUs, coated units, laminated glass, triple glazing, and specialised applications. This variety shows how gas measurement can be adapted to different product designs and manufacturing requirements.

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