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Pyrolytic and Sputter-Coated Glass: Factory Coatings Have Different Histories

Pyrolytic and sputter-coating describe different glass-manufacturing processes. Neither term should be treated as a generic approval for adding a site-applied nano coating.

Updated · NANOLAB Knowledge

The key distinction

Vitro explains that pyrolytic coatings are applied during hot glass manufacture, while sputter coatings are deposited through a separate controlled process. The exact glass product determines its location, handling and care requirements.

Practical checks

  1. Identify the glass product and factory coating.
  2. Obtain the relevant care and compatibility information.
  3. Ask about the proposed additional treatment on the exact exposed face.

Example

Illustrative example: two panes are both described as low-e glass, but their product constructions and exposed surfaces differ. A cleaning or coating method approved for one should not be transferred automatically to the other.

Scope and limits

Do not infer durability or chemical compatibility from hard-coat or soft-coat shorthand alone. Follow the glass manufacturer's current product-specific requirements and obtain approval for any additional surface treatment.

Related guidance

Technical references: Vitro: low-emissivity glass. These sources describe their stated methods or products; they do not certify NANOLAB products or establish compatibility with an unlisted surface.

Discuss the intended surface with NANOLAB. Use the current product documentation for formulation-specific instructions.