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Boron in wood protection and biocides

Borate wood treatment ensures wood protection and preservation—effectively and cost-efficiently

Wood protection and preservation solutions for today’s engineered wood and timber products must meet a wide range of demands depending on regional environmental conditions—and regulatory requirements. Around the world, boric acid wood treatments are the top wood protection and biocide choice, universally recognized as safe and highly effective. But not all borates are equal.

Ensuring your wood products are well protected requires using the right borate at the right concentration to achieve fire safety compliance and meet American Wood Protection Association (AWPA) borate wood protection standards. A weak or inconsistent solution can be extremely costly, damaging your products, your profits, and your reputation. Only consistent, high-quality borates can get the job done right the first time—and every time—making them significantly more cost efficient than less reliable alternatives.

Multipurpose borates are the standard for effective wood protection

Borates and boron compounds such as disodium octaborate tetrahydrate (DOT—Na2B8O13·4H2O ) have long been recognized for their effectiveness in protecting wood from insect damage, moisture, rot, fungi, and fire.

Protect wood from fire with boron-based flame retardant

As a fire retardant, U.S. Borax products, such as Polybor®, Optibor®, or Neobor® to suppress flaming combustion, fire glow, and smoldering, and promote char formation to slow the spread of fire.

In addition, our Firebrake® products are used in a variety of fire retardant applications.

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Reliable, long-lasting wood protection

As a wood protectant, borate products such as Borogard® ZB and Tim-bor® Industrial are highly effective broad-spectrum wood preservatives that enable full control over moisture-induced decay and fungi such as wood rot. And they protect both solid wood and engineered wood products from pests such as termites, carpenter ants, and wood-boring beetles.

Boron in wood protection and biocides

Borate-based wood treatment for any manufacturing application

Multi-functional boron compounds are applied in solution form via spray, dip diffusion, or vacuum pressure treatment to products such as:

  • Solid wood

  • Lumber

  • Railroad crossties

  • Millwork, windows, and doors

  • Mass timber

​Water-soluble borates penetrate wood through diffusion—a process that allows the borate to completely penetrate the wood and deliver long-lasting, highly effective protection.

Boron in wood protection and biocides

Borates can also be incorporated as an additive in engineered wood products such as:

  • Plywood

  • Oriented strandboard (OSB)

  • Cross-laminated timber (CLT)

  • Wood-plastic composites (WPC)

  • Fiberboard

Learn more about how borates improve the longevity and performance of modern engineered wood construction materials.

Boron in wood protection and biocides
Boron in wood protection and biocides

Fungi can destroy 20-40% of WPCs’ wood component. Borate-based wood treatment provides affordable, long-lasting protection of WPCs against decay fungi.

Why work with U.S. Borax for wood protection solutions ?


Consistent, highest quality borates

You need a consistent level of boric oxide (B2O3) for effective wood treatment in every lot you process. Unlike raw mineral borates, U.S. Borax borates go through an extensive refinement process that ensures unmatched purity, quality, and consistency of the borate compounds that go into your products.

Our ISO 9001:2015-certified Quality Lab runs 24/7 to support continuous product testing and quality management best practices, from mine to final packaging. Titration testing helps prevent variation during processing; and once final checks are complete, lot codes ensure product traceability.

Boron in wood protection and biocides
Boron in wood protection and biocides

U.S. Borax technical experts are well versed in AWPA standards and can guide you to the right combination of product, rate, and application to ensure you meet or exceed industry requirements for wood protection.

Technical expertise on your side

As you adapt to changes in products and demand, it’s good to know you have a partner who can provide guidance on specific technical details such as:

  • Choosing the right product for your application

  • Dilution rates

  • Application techniques

We can advise you on timing of product application for even distribution throughout the wood and full protection, consistency, and reliability.

Our team can even provide analysis to determine how much borate is maintained in the wood product over time.

Our industrial technical support team is your ready resource, bringing deep technical knowledge of our products—and a keen understanding of your business—to ensure consistency and reliability in your borate use.

Boron in wood protection and biocides

Industry memberships

U.S. Borax is proud to be an industry leader and partner

Boron in wood protection and biocides
Boron in wood protection and biocides
Boron in wood protection and biocides

More about Borates in Wood Protection and Biocides

Safer wood starts with borate flame retardants

Recent building fires have renewed attention on fire safety in modern construction. See how borate flame retardants improve fire performance in wood products used across residential and commercial buildings.

Protecting wood construction with borates

Housing is one of the fundamental needs for people everywhere. As the world’s population grows, we need more housing with a greater variety of options. This demand presents challenges not only for the pace of building but also for building materials.

Preserving railroad crossties with borate-creosote treatment

Questions have surfaced regarding borates’ effectiveness in preserving railroad crossties. Learn how dual treatment of borates and creosote is key to protecting and extending crosstie service life.

Have questions? Talk to us

Our team of technical experts can provide the recommendations, resources, and samples you need for your specific application. If you have questions about pricing, loading, compatibility with other materials, please contact us.