To protect your metal detecting finds from corrosion, you’ll need to act quickly with proper stabilization techniques. Start by gently cleaning artifacts with soft brushes and distilled water, then thoroughly dry them. Store your finds in breathable containers with desiccants, maintaining humidity levels between 35-55%. Apply protective coatings like microcrystalline wax or conservation-grade lacquers to prevent deterioration. Professional conservation methods offer additional specialized treatment options for valuable discoveries.
Key Takeaways
- Store artifacts in breathable containers with desiccants to maintain optimal humidity levels between 35-55% and prevent moisture damage.
- Apply protective coatings like microcrystalline wax or Paraloid B-72 to create a barrier against environmental factors.
- Clean finds gently using soft brushes and distilled water, avoiding harsh chemicals that could damage historical surfaces.
- Separate different metal types to prevent galvanic corrosion, using acid-free materials as barriers between items.
- Monitor storage conditions regularly with hygrometers and maintain consistent temperature levels to prevent environmental deterioration.
Understanding the Enemy: Types of Corrosion
When protecting metal detecting finds, understanding the various types of corrosion is essential to preventing further degradation of your artifacts.
You’ll encounter uniform corrosion most frequently, appearing as general surface rusting that affects large areas of your finds. For effective metal preservation, you’ll need to recognize pitting corrosion, which creates small but dangerous cavities that can penetrate deeply into artifacts. The interior of pits can be especially damaging since they create low pH environments that accelerate deterioration.
Galvanic corrosion poses a particular threat when different metals touch in the presence of moisture, while stress corrosion can create hairline cracks in finds subjected to tension. Environmental factors like soil chemicals and moisture can cause environmental cracking in susceptible metals over time.
When metals meet and moisture is present, galvanic corrosion accelerates decay, while tension can trigger stress fractures in fragile finds.
High-temperature corrosion isn’t typically a concern for buried artifacts, but erosion-related damage from soil movement can combine with chemical attacks to threaten your discoveries.
Successful corrosion prevention starts with identifying these specific threats to your relics.
Essential Tools for Preservation
You’ll need appropriate containers like archival boxes and acid-free bags to safely store your metal detecting finds, along with silica gel packets or dehumidifiers to maintain ideal moisture levels.
Your essential cleaning supplies should include soft-bristled brushes, fine bronze wool, and gentle chemical agents like mineral spirits for initial debris removal and corrosion control. Avoiding harsh chemicals will help preserve the historical value of your finds. Understanding the unique properties of different metals helps determine which cleaning tools to use.
To protect your cleaned artifacts, you’ll require protective coatings such as clear lacquers, oil-resin varnishes, or specialized metal conservation products that create moisture-resistant barriers.
Storage Containers and Bags
Selecting appropriate storage containers and bags is essential for preserving metal detecting relics long-term. When choosing storage container types, you’ll want to avoid airtight options for iron items, as trapped moisture can accelerate corrosion. Instead, opt for containers that allow some airflow while protecting from dust and physical damage. Maintaining a storage environment with humidity below 55% is crucial for preventing deterioration.
For protective bag options, consider cloth bags that provide breathability while safeguarding against scratches. You’ll find tackle boxes with compartments especially useful for organizing and transporting your finds. Using a proper finds box during transport helps prevent damage to newly discovered items.
For coins and smaller items, specialized coin binders or scrapbooks offer excellent organization by date, type, or mint. Whatever container you choose, line it with acid-free tissue paper or inert foam padding to prevent scratches and chemical reactions.
Remember to label your storage units clearly to track preservation progress and minimize unnecessary handling.
Moisture Control Equipment
Moisture control stands as a critical foundation for preserving metal detecting finds.
You’ll need reliable equipment to monitor and manage environmental conditions effectively. Start with humidity sensors and moisture analysis tools to maintain ideal preservation conditions for your artifacts.
Essential moisture control equipment includes:
- Hygrometers for real-time relative humidity monitoring
- Data loggers to track temperature and RH patterns
- Dehumidifiers to reduce excess moisture when readings exceed 70%
- Humidifiers to prevent brittleness when conditions fall below 30% RH
Position your monitoring devices above floor level and away from vents or windows for accurate readings.
Early museum practices showed that maintaining humidity between 55-60% RH was optimal for preserving valuable artifacts regardless of temperature variations.
Regular calibration of digital hygrometers ensures accurate measurements for long-term preservation success.
Integrate these tools with proper ventilation systems to prevent moisture accumulation.
When selecting equipment, prioritize systems that offer automated control and efficient operation while minimizing heat generation that could accelerate corrosion.
Cleaning and Coating Supplies
While proper cleaning and coating supplies form the backbone of relic preservation, choosing the right tools for each metal type is essential.
You’ll need specialized cleaning agents like 5% lemon juice solution for copper corrosion and metal polishes designed specifically for detector finds. For basic maintenance, keep soft toothbrushes, cotton swabs, and fine bronze wool in your kit. Our store offers high-quality cleaning supplies perfect for preserving your treasured finds.
For protective measures, you’ll want clear lacquer, light wax coatings, or oil-resin varnishes to seal your finds against moisture and air. Sterling silver artifacts can be effectively cleaned using an aluminum pan method with washing soda and distilled water.
Remember to avoid any cleaning compounds containing chlorides or sulfur when working with copper and brass.
For iron relics, wire brushes and bronze wool combined with mineral spirits will effectively remove corrosion, while specialized metal protectants can prevent further deterioration after cleaning.
Creating the Perfect Storage Environment
To protect your metal detecting finds for generations to come, you’ll need to establish precise environmental controls in your storage space. Choose ideal storage locations away from basements and attics where temperature and humidity fluctuate dramatically.
Proper storage with stable temperature and humidity control is essential for preserving metal detecting treasures over multiple generations.
Install environmental monitoring devices to track conditions and maintain relative humidity below 55%.
Your storage environment should incorporate these critical controls:
- Temperature stability between 65-70°F to slow corrosion reactions
- Protection from UV exposure through opaque containers
- Oxygen-free environments using appropriate absorbers
- Physical separation of items using acid-free materials
Don’t store artifacts in sealed plastic without moisture control, as this traps condensation. Instead, use breathable containers with desiccants and oxygen scavengers.
Handle items minimally, always with clean, dry hands or gloves to prevent contamination and wear.
Safe Cleaning Techniques for Found Relics
Proper cleaning techniques can mean the difference between preserving or destroying your metal detecting finds. To protect your relic’s historical significance, start with gentle cleaning methods using basic materials like soft brushes and distilled water.
Don’t rush to remove all dirt in the field, as it can protect delicate surfaces during transport.
For rust and corrosion, identify your metal type first. Use soft wire brushes on ferrous metals, while copper and brass respond well to homemade pastes or diluted natural acids.
Always test cleaning solutions on small areas first. After cleaning with acids, neutralize with a baking soda solution and rinse thoroughly with distilled water.
Remember to wear gloves to prevent skin oils from damaging precious metals, and dry your finds completely to prevent further deterioration.
Protective Coatings That Last
You’ll find that microcrystalline wax coatings offer excellent moisture resistance and reversibility for your metal detecting finds, making them ideal for long-term preservation.
When applying protective lacquers like Paraloid B-72 or Incralac, you’ll need to guarantee complete surface coverage while maintaining optical clarity to preserve the relic’s appearance.
Your choice between wax and lacquer should consider factors like the metal type, storage environment, and whether you’ll need to remove the coating later for additional conservation work.
Long-Term Wax Benefits
Selecting the right protective coating for metal detecting finds can make the difference between long-term preservation and ongoing deterioration. Microcrystalline wax and Briwax offer superior protection for both cast-iron and wrought-iron relics through proven preservation techniques.
When you’re applying these waxes, you’ll achieve excellent results by following a methodical wax application process.
For maximum protection of your finds:
- Thoroughly clean and dehydrate your relic
- Heat the artifact to enhance wax penetration
- Apply multiple thin layers with buffing between coats
- Monitor and reapply as needed for exposed items
These wax coatings create a durable barrier that seals out moisture and oxygen while preserving original surface details.
You’ll maintain better historical integrity with wax than with synthetic alternatives, as it’s both effective and reversible.
Lacquer Application Methods
While wax coatings offer reliable protection, lacquer-based solutions present additional advantages for preserving metal detecting finds.
You’ll want to select conservation-grade acrylic lacquers like paraloid™ B-72, available in concentrations from 3% to 20%, with 3% being the minimum recommended strength for basic preservation.
For ideal lacquer application tips, start by ensuring your artifact is completely clean and dry.
Warm the piece gently with a hair dryer to improve adhesion and penetration.
Apply multiple thin layers rather than one thick coat, using fine brushes or spray methods to reach all surfaces.
You’ll need to work in a well-ventilated area and allow proper drying time between coats.
For enhanced protection, consider applying a rust inhibitor before your lacquer techniques, especially on iron artifacts.
The Role of Humidity Control
Controlling relative humidity stands as one of the most critical factors in preserving metal detecting finds. To minimize humidity effects and guarantee effective corrosion prevention, you’ll need to maintain RH levels between 35-55% for most metal artifacts.
For ideal protection of your finds, implement these essential humidity control measures:
- Store chloride-contaminated iron at 0-10% RH using desiccants in sealed containers.
- Keep copper alloys below 42% RH in airtight enclosures.
- Place silver items in sealed bags with both desiccants and sulfur-removing materials.
- Separate metals prone to galvanic corrosion and store in controlled environments.
You’ll want to monitor RH levels constantly using humidity indicator strips and adjust your storage methods accordingly.
For enhanced protection, consider applying Renaissance Wax to fully dried surfaces, creating an additional moisture barrier for your valued finds.
Emergency Care for Fresh Finds
When you’ve just unearthed a metal detecting find, your immediate actions can determine its long-term preservation. Your emergency response should begin with gentle cleaning using a soft-bristled brush to remove loose dirt, avoiding harsh scrubbing that could damage historical patina.
Quick, careful cleaning with a soft brush is essential right after discovering metal artifacts to preserve their historical value.
For ideal preservation, initiate rapid drying using controlled heat sources like a blow dryer or infrared lamp. Don’t expose artifacts to high temperatures or open flames.
Once completely dry, apply a thin layer of Renaissance Wax or specialized corrosion inhibitor to create a protective barrier against moisture and oxygen.
Wrap each find individually in acid-free tissue paper and store in ventilated containers away from sunlight.
If you encounter heavily corroded items or suspected ordinance, don’t attempt DIY treatment – consult experts immediately for proper handling guidance.
Long-Term Storage Solutions
You’ll want to store your metal detecting finds in airtight bags containing silica gel desiccant packets to maintain ideal humidity levels below 35%.
Temperature-controlled display cases provide an additional layer of protection by keeping your artifacts at a stable temperature while shielding them from harmful UV exposure.
For maximum preservation, implement a double-layer protection method by first wrapping individual items in acid-free paper before placing them in archival-quality polyethylene bags with desiccants.
Airtight Bags With Desiccants
Long-term preservation of metal detecting finds requires careful selection of airtight storage bags combined with appropriate desiccants.
The latest airtight technology, particularly aluminum-coated Mylar bags, provides superior moisture protection compared to standard plastic options. You’ll maximize desiccant effectiveness by choosing the right combination for your specific needs.
For ideal preservation, follow these critical steps:
- Select military-grade desiccant packets that meet Mil-D-3464E standards
- Heat-seal your aluminum-coated Mylar bags for maximum moisture barrier
- Position desiccants to avoid direct contact with relic surfaces
- Monitor color-changing indicators for early detection of moisture breakthrough
Temperature-Controlled Display Cases
While airtight bags offer basic protection, temperature-controlled display cases represent the gold standard for preserving metal detecting finds.
These specialized units provide thorough climate regulation through precise temperature control between 64-68°F (18-20°C) and humidity levels below 55%.
Modern display case design incorporates either passive systems using moisture-absorbing materials or active mechanical controls for maintaining ideal conditions.
You’ll find these cases equipped with airtight seals, LED lighting to prevent heat damage, and materials that won’t react with your artifacts.
They’re available with both basic and advanced features – from simple passive humidity control to sophisticated remote monitoring systems.
For your most valuable finds, consider cases with integrated dehumidifiers, air purification, and low-oxygen environments to maximize protection against corrosion and degradation.
Double-Layer Protection Methods
For ideal preservation of metal detecting finds, implementing a double-layer protection strategy combines multiple defensive barriers against environmental threats.
Double layer techniques start with an inner protective coating, followed by controlled storage conditions for maximum corrosion prevention.
For best results, follow these essential steps:
- Apply a compatible protective coating (lacquer, wax, or rust inhibitor) directly to your cleaned, dry metal finds.
- Wrap individual items in acid-free paper before placing in storage containers.
- Add silica gel packets to maintain low humidity levels inside storage units.
- Group items by metal type in archival-quality boxes with minimal air space.
You’ll want to fill storage containers completely while avoiding sealed plastic bags that trap moisture.
Regular monitoring guarantees your double-layer protection remains effective, helping preserve your valuable finds for years to come.
Handling Precious Metals Correctly
Proper handling of precious metal relics requires specific protocols to prevent degradation and preserve their historical integrity.
When you’re handling precious metals, you’ll need to understand each metal’s sensitivity to environmental factors. Gold shows excellent stability, while silver’s susceptibility to sulfur compounds demands extra care.
You’ll want to avoid direct skin contact with your finds, as oils and acids from your hands can accelerate tarnishing. Instead, use clean gloves and soft, non-abrasive tools when cleaning or examining pieces.
For cleaning, stick to gentle solvents like ethanol or acetone rather than harsh chemicals that could damage the metal’s surface.
Remember that even stable metals like platinum can deteriorate under poor handling techniques, so maintain controlled environments with low humidity and minimal temperature fluctuations for your collection.
Professional Vs DIY Conservation Methods
Conservation methods for metal detecting relics fall into two distinct categories: professional laboratory treatments and do-it-yourself approaches.
While professional techniques offer precision control and specialized equipment like electrolysis devices, DIY methods can be effective when used carefully.
Professional conservators use advanced processes that minimize DIY risks and protect valuable artifacts:
- Chemical baths tailored to specific metal types
- Controlled drying with infrared or vacuum systems
- Museum-grade protective coatings
- Reversible preservation treatments
You’ll find DIY cleaning methods more accessible and cost-effective for common finds, using tools like soft brushes and mild natural acids.
However, you must exercise caution with historical pieces – aggressive cleaning can damage patinas and reduce value.
For significant discoveries, professional conservation typically proves worth the investment, preserving both authenticity and market value.
Frequently Asked Questions
How Can I Safely Transport Metal Detecting Finds From the Field Home?
Play it safe during field transport by placing finds in protective cases with desiccant packs. You’ll want to use plastic containers with padding, keeping items separate and dry until you’re home.
What’s the Maximum Time I Should Wait Before Starting Preservation?
You shouldn’t wait longer than 24 hours to begin preservation, as corrosion prevention requires urgency. Start basic stabilization immediately after field recovery, especially for iron artifacts that’ll deteriorate quickly.
Can Relics Be Stored Together, or Should Different Metals Remain Separate?
Like wolves and sheep, different metals don’t mix well. You’ll need to store them separately due to metal compatibility issues. Use individual plastic containers or acid-free bags with proper storage materials to prevent corrosion.
Will Cleaning Completely Remove the Natural Patina From Ancient Coins?
You’ll risk removing patina if you’re not careful with coin preservation methods. While gentle cleaning techniques can preserve some patina, aggressive chemical or mechanical cleaning will completely strip your coin’s natural surface.
How Often Should I Replace Desiccants in Long-Term Storage Containers?
Time flies when you’re preserving relics! You’ll need to replace silica gel desiccants every 6-12 months in standard containers, but storage conditions like humidity and container type will affect your replacement schedule.
References
- https://www.canada.ca/en/conservation-institute/services/preventive-conservation/guidelines-collections/metal-objects.html
- https://www.metaldetectingworld.com/iron_conservation_p29.shtml
- https://stephentaylorhistorian.com/2019/12/04/cleaning-ww2-relics/
- https://www.metaldetector.com/blogs/new_blog/care-preservation-of-relics-found-with-metal-detectors
- https://www.youtube.com/watch?v=aH4AxS9e0yA
- https://www.syalons.com/2022/09/14/9-different-types-of-corrosion-affecting-materials/
- https://www.ulbrich.com/blog/what-are-the-most-common-forms-of-metal-corrosion/
- https://en.wikipedia.org/wiki/Corrosion
- https://astropak.com/common-types-of-corrosion/
- https://www.usna.edu/NAOE/_files/documents/Courses/EN380/Course_Notes/Ch05_Corrosion_Types.pdf
