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ALUMBRE CALCINADO A LEÑA  ( 25 g)
The Ancestral Mordant and Mineral Shield: Centuries of Wood Protection
Product Description

We are not merely inventing a solution; we are rescuing the historical truth that allowed the greatest masterpieces in history to withstand the test of time. This Calcined Alum (25g flakes) is the same mineral used by master cabinetmakers and palace architects as a definitive treatment. It serves as an implacable fixer that historically secured colors in tapestries and now acts as a definitive shield for wood against its greatest enemies, such as wood-boring insects and moths.

Unlike modern industrial products that evaporate, our alum—artisanally calcined in wood-fired kilns—restores the technique of historical mineralization. By infiltrating galleries alongside a few drops of acetic acid (common vinegar), this "thirsty" mineral expands and vitrifies the fibers. This process transforms what was once food for woodworms into an indigestible mineral crystal. This is the secret behind why century-old beams and museum-quality furniture remain as hard as stone today.

By choosing Legacy Paint, you are not applying a volatile poison that will end up in your lungs. Instead, you are applying a physical petrification process that restores structural density to the furniture. It is a real, eternal barrier that does not suffocate the wood, allowing it to continue breathing as the living material it is, while maintaining permanent protection.

Specialized and Artisanal Usage
  • Saturation and Vitrification: Deep injection to convert woodworm galleries into mineral crystal structures.
  • Historical Grade Mordant and Fixer: The essential preparation for our lime-based mineral distempers and our encaustics. Our artisanal formula combines the benefits of Punic wax and encaustic into a single, indissoluble symbiosis with the wood.
Performance and Efficiency: A Small Treasure that Goes a Long Way

As a pure calcined mineral, these 25 grams are a high-performance concentrate. Once ground in a mortar and dissolved for application, it possesses an astounding saturation capacity. This small amount is sufficient to treat entire pieces of furniture or perform deep structural interventions on critical areas of beams and structures, ensuring a definitive shield where others only offer temporary solutions.

Technical Preparation and Proportions

For an effective intervention on pieces with moderate to severe infestation, we recommend the following mixture:

  • 3 to 4 grams of calcined alum (depending on the desired concentration).
  • 50 ml of very hot water (essential for total mineral dissolution).
  • 10 ml of vinegar.
Step-by-Step Application Protocol

To ensure a definitive treatment, follow this mechanical injection process:

  1. Deep Cleaning: The surface must be thoroughly clean before beginning.
  2. Injection and Air Displacement: Use a syringe to inject the solution into random holes. When introducing the liquid, you will see a water bubble emerge; this is the air from the galleries being expelled, indicating the walls are being impregnated.
  3. Pressure Technique: Immediately cover the hole with your finger for one second, uncover, and re-inject into the same spot.
  4. Total Saturation and Shielding: This second load takes advantage of the first injection "clearing the path," allowing the alum to penetrate the deepest galleries without resistance. If you see another bubble upon re-injecting, do not worry; it is simply the remaining air being displaced, confirming both the hole and the internal galleries are fully saturated. Once the water evaporates, the mineral crystallizes, leaving the wood permanently protected.

The secret to breaking free from toxic insecticides.

SHIPPING INCLUDED FOR SPAIN AND ISLANDS.

"Want to see exactly how the mineral penetrates and saturates the galleries in our workshop? Don’t miss our [Mineral Injection and Shielding Tutorial]."

€58,38
Shipping calculated at checkout.