Frequently Asked Questions

Direct answers from our engineering and export teams — covering products, performance data, ordering and logistics.

Do you sell to distributors and OEMs or only to end customers?

Both. Most of our volume ships under OEM/ODM programs to appliance brands, cold-chain packers and building-material distributors. Private labeling, custom packaging and long-term supply agreements are standard practice.

Which trade terms and ports do you work with?

Standard quotations are FOB Xiamen or CIF destination port; EXW and DDP are possible on request. Our operations center sits in Xiamen, one of China’s largest container ports, which keeps inland logistics short.

Can you send samples before a production order?

Yes. Standard-size samples of VIP panels, cooler boxes and vacuum glass are available; custom-size samples are quoted after drawing review and are typically credited against the first production order.

How do you assure quality on volume orders?

Every panel is 100% tested for internal vacuum before shipment, with batch-level thermal conductivity testing in our own lab. As a STAR-Market-listed company, our quality system and production capacity are audited and publicly documented.

Do all VIP series share the same conductivity and thickness?

No. Fiberglass, fumed silica, lightweight, ultra-thin and VAP panels have different specifications. Select a series and configuration before setting the thermal and dimensional requirements.

Can vacuum insulation panels be cut on site?

No. Cutting or puncturing the sealed envelope destroys the vacuum. Specify final dimensions and any factory-made shapes before ordering.

Does a 50 L cooler provide 50 L of payload space with PCM?

Not necessarily. Nominal capacity, empty internal space and the usable load after adding PCM, dividers and protective packaging are different measures. Confirm the loading drawing for your chosen pack-out.

Do all models provide the same holding time?

No. Temperature performance depends on the exact box, coolant quantity and preconditioning, payload and ambient profile. Request a matching test report before adopting a configuration.

What is the U-value of vacuum insulating glass?

Supertech VIG achieves a center-of-glass U-value of ≤ 0.45 W/(m²·K). Standard double glazing is typically 2.6–2.8, argon-filled Low-E double glazing around 1.1–1.3, and triple glazing 0.5–0.8 W/(m²·K). VIG therefore matches or beats triple glazing in a unit of roughly one quarter the thickness.

How is the vacuum maintained over the life of the glass?

The edge is hermetically sealed with a lead-free alloy solder — not an organic sealant that ages — and the unit contains a high-efficiency getter that adsorbs any residual gas molecules. Production without a pump-out port removes the most common leak path of early VIG designs.

Can VIG replace single glass in old window frames?

Usually yes. At about 8.3 mm and one third of triple glazing’s weight, VIG fits most existing rebates for single or thin double glass, which makes it the standard solution for heritage retrofit projects where frames must be preserved.

Is vacuum insulating glass safe?

Supertech VIG uses fully tempered safety glass for both panes, and the pillar array between the panes is designed to carry atmospheric pressure permanently. Units are produced without an evacuation stem, so there is no protruding weak point on the surface.

Question not answered here?

Ask our engineers directly — technical questions are usually answered within one working day.

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