HM03 Manual Spray System

The Bookkeeper HM03 is a specialized, manual spray system engineered for the professional deacidification of paper-based archival materials. Designed for items that are too large, fragile, or sensitive for immersion treatment, the HM03 offers a highly controlled, non-aqueous method to extend the life of valuable collections.

By utilizing a fine-mist application, the system neutralizes existing acids within the paper fibers and leaves behind a permanent alkaline reserve, effectively halting the "slow fire" of acid degradation.

Key Features

• Safe, Non-Aqueous Formula: The carrier fluid is completely water-free, ensuring that water-sensitive inks, dyes, and adhesives remain intact without the risk of paper cockling or bleeding.

• Precision Application: The manual spray wand allows for targeted treatment of specific areas, making it the ideal solution for oversized maps, posters, and manuscripts.

• Long-Term Preservation: It deposits sub-micron particles of magnesium oxide that react with moisture in the air to create a lasting magnesium carbonate buffer.

• Operator & Environmentally Safe: The chemistry is non-toxic, non-flammable, and contains no CFCs or HCFCs, allowing for safe use in standard archival environments.

• Ready for Use: The quick-drying nature of the dispersion means treated items can be handled and returned to storage shortly after application.

Technical Specifications

• System Design: Portable, pressurized stainless steel tank with a manual trigger wand.

• Capacity: 1.0 Liter tank, optimized for small-to-medium batch treatments.

• Active Ingredient: Sub-micron Magnesium Oxide (MgO) particles.

• Alkaline Reserve: Provides a consistent buffer of approximately 1.5% to 2.0% magnesium carbonate.

• Coverage: Designed for even, fine-mist distribution to ensure deep fiber penetration.

• Compatibility: Safe for all types of paper, including newsprint, vellum, and modern wood-pulp papers.