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What is Clear Conversion Varnish?

Published in Wood Finishing Coating 3 mins read

Clear conversion varnish is a type of durable finishing product commonly used on wood surfaces, particularly in professional settings like cabinet and furniture production. Based on the characteristics of products like Ultra® Flo Clear Conversion Varnish, it can be described as a post catalyzed, conventional VOC formulated, clear coating.

Understanding Clear Conversion Varnish

This type of finish falls under the category of catalyzed coatings, meaning it requires a catalyst or hardener to cure properly. This chemical reaction results in a very hard, durable, and chemical-resistant finish compared to non-catalyzed options.

Key Characteristics

As highlighted by the description of Ultra® Flo Clear Conversion Varnish, key features typically include:

  • Post Catalyzed: This means the catalyst is added just before application, initiating the curing process. This differs from pre-catalyzed varnishes, where the catalyst is mixed during manufacturing but has a shorter shelf life once activated.
  • Conventional VOC Formulated: It contains a conventional level of Volatile Organic Compounds (VOCs), which are solvents that evaporate during the curing process. While effective, VOC levels are subject to environmental regulations in many areas.
  • Clear Coating: It provides a transparent layer that protects the underlying wood or stain without obscuring the grain or color.
  • Self-Sealing: Many conversion varnishes, like the example given, function as a self-sealing system, meaning they can be applied directly to the substrate without needing a separate sealer coat. This simplifies the finishing process.

Why Use Clear Conversion Varnish?

Conversion varnishes are favored in production shops for their performance attributes:

  • Durability: They provide excellent resistance to scratches, moisture, and household chemicals.
  • Speed: The catalyzed curing process allows for faster production cycles compared to finishes that cure solely through solvent evaporation.
  • Professional Finish: Products like Ultra® Flo are sought after for their "best in flow out and professional quality," resulting in smooth, level finishes.

Typical Applications

Clear conversion varnish is widely used for finishing high-wear interior wood surfaces, such as:

  • Kitchen cabinets
  • Bathroom vanities
  • Furniture (tables, chairs, dressers)
  • Wood trim and millwork

Its robust nature makes it suitable for areas that require a tough, long-lasting, and easy-to-clean finish.

In summary, clear conversion varnish, exemplified by products like Ultra® Flo Clear Conversion Varnish which is a post catalyzed, conventional VOC formulated, clear coating, is a high-performance, durable wood finish valued in professional environments for its protective qualities, self-sealing capability, and ability to achieve a smooth, professional look.

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