Hiding a Nano without a Magnet: These Alternatives Really Work
Yes, a cache without a magnet works just as well as a magnetic one, often even better. The most reliable options are mechanical loops made of Velcro or zip ties, hanging nanos with eyelets, and residue-free adhesive pads on smooth surfaces. Important: do not use screws in living trees, and plan for regular maintenance. There are containers that can be mounted without magnetic force.
In short:
- Non-magnetic fasteners like Velcro straps, hangers, and clamp caches are more reliable and gentler on many surfaces than magnetic solutions.
- The distance to other caches must be at least 161 meters, and the location should remain weatherproof for at least three months.
- Regular visual inspections every two to three months are necessary to ensure the secure attachment and integrity of the cache.
- Mechanical solutions outperform adhesive variants in terms of durability, with adhesive options only being used on smooth surfaces and after a test adhesion.
- For beginners, a simple material list including Velcro straps, residue-free adhesive strips, a nano with an eyelet, and a weatherproof logbook is sufficient.
Table of Contents
- Why non-magnetic caches are often the better choice
- What rules apply when hiding a cache?
- Which non-magnetic fasteners hold up in practice?
- Which container suits which non-magnetic mounting?
- How to keep non-magnetic caches intact long-term?
- Practical workflow: Building non-magnetic nano caches
- What really distinguishes non-magnetic caches from good ones
- Suitable equipment for your next non-magnetic cache
- Sources
Why non-magnetic caches are often the better choice
A magnet only sticks to metal. As soon as you encounter plastic, wood, stone, or painted sheet metal, it fails completely. This is the first misconception many owners have: they plan a hide around the magnet, instead of the other way around.
Even on actual metal surfaces, a magnet is not a permanent solution. Rust accumulates under the mounting, adhesive strength decreases with vibration, and on stainless steel with low iron content, a neodymium magnet often simply doesn't hold at all. Anyone who has checked a cache after three months of rain and frost knows how quickly such a connection gives way.
Non-magnetic techniques fundamentally solve this problem because they are not tied to the material properties of the substrate. This makes them interesting for:
- Urban hides on railings, signs, or cladding made of aluminum and plastic
- Natural areas where you don't want to exert force on living wood
- Smooth surfaces like glass, painted sheet metal, or tiles, where a magnet wouldn't hold anyway
The practical advantage: a Velcro loop or a hanger can be loosened and repositioned in seconds without leaving traces on the object. This spares both the tree and your nerves if you need to adjust the hide after the initial placement.
What rules apply when hiding a cache?
Before you even get to the attachment, the basic rule determines the location. There must be a minimum distance of 161 meters between two physical caches, which roughly corresponds to several hundred feet according to a historical conversion of US rules. Additionally, your hide should last for at least three months without being destroyed by weather or vegetation.
Important points before hiding:
- Check the minimum distance of 161 meters to the next cache
- Do not drive screws or nails into living trees
- Choose a location where seekers cannot be seen while logging
- If in doubt, contact the responsible reviewer or the forestry office
Pro Tip: When in doubt, it's better to ask the reviewer too many questions than to have your listing stuck in the queue for months due to a distance violation.
Responsibility doesn't end with publication. As an owner, you are responsible for regular visual inspections and must replace defective fasteners before loggers find an empty container or a broken mount.
Which non-magnetic fasteners hold up in practice?
Four techniques cover almost every application. Which one you choose depends on the substrate and the size of your container.
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Mechanical loops with Velcro or zip ties. Velcro straps or cable ties are the gentlest solution on branches and struts. You wrap the loop around the branch, leaving it loose enough for growth, and don't pull it so tight that it cuts into the bark. Advantage: no tools, assembled in a minute. Disadvantage: on very thin branches, wind can shift the loop.
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Hangers for hanging nanos. Nano cans with hangers hang on an eyelet or wire loop under a branch or in a fork. This variant is suitable if you don't have a surface for attachment, but only a hanging point. It is also almost invisible from below, which reduces the muggle factor.
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Clamp caches in existing gaps. Information boards, fence posts, or branch forks often already offer a gap into which you can clamp a small container without drilling or gluing anything. This method is the most inconspicuous because it shows no additional hardware on the object. However, it only works if the gap is tight enough so that the cache doesn't fall out.
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Adhesive variants for smooth surfaces. For aluminum, plastic, or glass, a thin metal plate with a removable, silicone-free adhesive as a base is recommended, onto which a bracket is then screwed or glued. PowerStrips and similar adhesive tapes are removable without residue, but hold differently well outdoors, depending on temperature and humidity.
Pro Tip: Test each adhesive connection for one day under real weather conditions before final assembly. What holds at 20 degrees in the living room can fall off immediately in the forest during night frost.
As a rule of thumb: mechanical solutions always beat adhesive when you have the choice. Adhesive remains the emergency solution for surfaces where neither clamp nor loop will grip.
Which container suits which non-magnetic mounting?
The choice of container also determines how well a non-magnetic attachment will work in the end. A hanging nano needs an eyelet, a PETling needs space for a bracket on the outside of the thread, and a Lock&Lock container usually needs a flat mounting surface or a loop around the entire body.
There are clear differences in waterproofness. Lock&Lock-like containers with a circumferential rubber seal are considered particularly weather-resistant because the lid seals all around instead of just screwing on. A simple screw thread, as many inexpensive nanos have, is more susceptible to moisture as soon as the sealing lip becomes brittle after a few years in the sun.
For the interior, less is more.
- A tiny pencil stub works more reliably in wet conditions than a ballpoint pen, which often stops writing in the cold.
- The logbook should be cut to a few centimeters so that it fits into a nano at all.
- Owner contact info should be included in case the cache is found and removed.
- A spare log strip inside the container saves you a trip if the original is soaked.
Real nanos with 3 to 5 milliliters of internal volume can realistically only fit rolled log paper and nothing else. If you want more space for trade items, you should switch to a micro or PETling container.
How to keep non-magnetic caches intact long-term?
A visual inspection every two to three months is sufficient for most locations, more frequently for heavily frequented hiking or park trails. This short checklist covers the usual weaknesses:
- Is the loop still tight, or has the branch shifted due to growth?
- Does the adhesive strip show initial detachment at the edges?
- Is the seal on the container still elastic or already brittle?
- Is there enough dry log paper inside?
A common mistake is using acidic silicone or cheap double-sided tape. These materials are difficult to remove without residue later and often damage the surface to which they were glued. You're better off with adhesives that can be dissolved with a little heat and isopropanol, without attacking paint or bark.
Pro Tip: Note the installation date in the listing as a hidden owner info. This way, you'll immediately see how old the adhesive connection actually is during the next maintenance run.
If a cache is reported as muggled or the logbook is missing, quick action is worthwhile. A replacement container with an identical attachment type can usually be replaced within a few days if you already have the necessary materials at home.
Practical workflow: Building non-magnetic nano caches
A well-thought-out process prevents most beginner mistakes before they even occur.
- Check location. Measure the distance to neighboring caches and see if the tree, railing, or surface is suitable for a non-magnetic mount at all.
- Choose container and attachment. A hanging nano for branch forks, a PETling for larger hollows, a clamp for existing gaps on info boards or fences.
- Attach without damage. Loosely attach Velcro straps, place adhesive pads only on clean, dry surfaces, and never screw into living wood.
- Average coordinates. Multiple GPS measurements at the same location significantly increase accuracy compared to a single reading.
- Conduct beta test. A second pair of eyes almost always finds a weakness that you yourself don't notice.
- Publish listing. You should review the official recommendations for your first hide completely before submitting.
For the material list, little is needed: Velcro cable ties, a set of residue-free adhesive strips, a hanging nano with an eyelet, and a weatherproof mini logbook cover most cases.
The difference between a cache that lasts three years and one that is muggled after three months rarely lies in the container itself. It almost always lies in the care taken in choosing the location and attachment.
If you want to read more about individual construction techniques, our DIY guide to special cache attachments offers further approaches that can be combined with the steps described here.
What really distinguishes non-magnetic caches from good ones
Most instructions on cache attachment treat magnets as the standard and everything else as a workaround. This is precisely the wrong perspective. A magnet is convenient as long as the surface fits, but it tempts you to choose the location based on the hardware rather than the other way around. Those who think mechanically instead will automatically find better hiding spots, because Velcro loops, clamps, and hangers work on almost any object, not just metal.
Underestimated is also the visibility for muggles during the search. A hanging nano under a branch is hardly noticeable from below, whereas a magnetically attached container on a street light immediately catches the eye of anyone looking closely. Non-magnetic technology is therefore not only the more stable choice, it is often also the more discreet one.
My advice to every owner: Don't buy the first tape you find at the hardware store, but invest a few more euros in products designed for outdoor use. The time spent on a maintenance run costs more than the savings from cheap material.
— Benedikt
Suitable equipment for your next non-magnetic cache
For owners who don't want to spend weeks tinkering, some shops offer ready-made containers for direct use. Where classic magnetic solutions fail on smooth or non-magnetic surfaces, our products offer practical alternatives for exactly these cases.
The screw with a secret compartment is suitable for urban hides where you need an inconspicuous, screwable solution without a visible mounting. For a robust, waterproof nano casing with a hanging option, the stainless steel cap nut cache is a good choice, precisely because stainless steel itself is not magnetic enough for reliable magnetic mounting and therefore benefits from a mechanical suspension. If you prefer to work with a larger PET container, the PETling with bracket offers a solution that can be combined with the non-magnetic loops and clamps described in this article.
Take your time browsing the shop and choose the container that fits your next location.
Sources
- How to attach geocaches / stations without damage? | Geoclub - Geocaching Forum
- How to Hide a Cache? – Opencaching Wiki
- A Guide to Hiding Your First Geocache – Official Blog
