Gold plating is a popular way to provide jewelry, watches, eyewear, and other accessories with a luxurious and attractive gold finish. But how durable is that ultra-thin layer of gold? If an item is plated with just 1 micron (or micrometer) of gold, how long will the gold plating last?

In this article, we’ll look in-depth at 1 micron gold plating, including its typical durability and lifespan. We’ll discuss the factors that can diminish its shine and luster over time and how proper care and maintenance can help extend the longevity of 1 micron gold plating.

What Does 1 Micron Thickness Mean for Gold Plating?

Gold plating thickness is measured in microns (μm), with 1 micron equaling 1 micrometer or 1/1000th of a millimeter. Here’s a quick guide to interpreting gold plating thickness measurements:

0.05 to 0.2 microns – Extremely thin “flash” plating, offers minimal wear resistance
0.5 to 1 microns – Provides a light gold coating, affordable but less durable
1 to 2 microns – Most common thickness for gold plated jewelry and accessories
3 to 7 microns – Thicker plating for improved durability and wear resistance
10+ microns – Heavy gold plating reserved for specialized applications

With a thickness of just 1 micron, it is considered a relatively thin layer of gold over the underlying core metal. While it gives the item a rich golden hue, 1 micron plating is not as hardy or long-lasting as thicker gold plating options.

Durability of 1 Micron Gold Plating

The lifespan of 1 micron gold plating can vary quite a bit. It depends on several factors:

Frequency of use – How often is the item worn or handled? Frequent use leads to faster wear and tear.
Care and maintenance – Is the item properly cared for between uses? Good cleaning and storage habits preserve plating.
Exposure to damage – Is the item exposed to substances, activities, or conditions that can erode the plating? Harsh chemicals, friction, and moisture can cause plating to fade.

Under ideal conditions, 1 micron gold plating may last 1 to 3 years with careful occasional use. However, with daily wear or inadequate care, plating loss can begin in as little as 3 to 6 months.

Heavily used gold plated items, like eyeglass frames or jewelry worn every day, are especially prone to quick thinning of the plating layer. Even proper care may only extend the lifespan to 1 to 2 years.

Wear and Tear on 1 Micron Gold Plating

So what exactly leads to wear and tear of thin gold plate? Here are some of the main causes of gold fading and flaking away:

Friction and Abrasion

Friction from rubbing and abrasion from contact with hard surfaces are two of the biggest culprits when it comes to wearing down gold plating. Jewelry is especially susceptible when things like rings, bracelets, and necklaces rub and bang against each other or against hard objects.

For gold plated eyewear, friction from regular handling and cleaning can erode away plating where the arms connect to the frame or at the nose pads. Even small movements over time degrade the thin gold layer.

Chemical Exposure

Household chemicals and cosmetic products contain ingredients that can react with gold plating. Perfumes, hair sprays, chlorine bleach, and other harsh cleaners can damage the gold layer.

For gold plated jewelry, swimming in pools can accelerate fading due to the chlorine. Skin creams and lotions can also wear down gold plating. Saliva and sweat can slightly corrode the gold over time.

Moisture and Tarnishing

Exposure to water and humidity causes tarnishing of the base metal underneath gold plating. As the underlying surface oxidizes and discolors, it shows through the transparent gold layer as dull or dark spots.

For gold plated silver, a common base metal, moisture allows the silver to tarnish. Small cracks or thinning areas in the plating allow tarnish to bleed through.

Quality of Plating

Not all gold plating is created equal. A very smooth and non-porous application of gold plating will be most resistant to wear. Lower quality plating with microscopic imperfections or pores is more vulnerable to damage.

Problems like poor adhesion, uneven plating thickness, or contamination can accelerate plating loss. A higher purity 24K gold plating alloy also holds up better than lower 10K or 14K gold alloys.

Extending the Lifespan of 1 Micron Gold Plating

While no plating lasts forever, especially thin 1 micron plating, you can take steps to extend its lifespan and keep it looking its best:

Clean Properly and Avoid Harsh Chemicals

Use a soft cloth to gently clean gold plated items. Avoid hard scrubbing or abrasive cleaning tools. For jewelry, an anti-tarnish cloth or specialized gold jewelry cleaner are good options.

Avoid bleach, ammonia, acids, and other harsh household chemicals that can interact with gold plating. Take off gold jewelry before using beauty products like perfume, hair spray, lotion, and make-up.

Store Carefully Between Uses

Keep gold plated jewelry in a fabric-lined jewelry box or soft storage pouch when not being worn. This protects the fine gold layer from getting scratched or damaged when pieces rub and bump against each other.

For gold plated glasses, use the protective case and keep in a dry, room temperature environment out of direct sunlight. Don’t just toss gold eyewear into a handbag or drawer.

Limit Exposure to Moisture and Chlorine

Take gold jewelry off before showering, swimming, washing hands, or engaging in strenuous exercise where sweating can occur. Avoid wearing gold plated pieces during housework where hands are frequently immersed in water.

When swimming in pools, hot tubs, or the ocean, leave gold plated jewelry behind. The chlorine in pools is especially problematic. If exposed to moisture, thoroughly dry items with a soft cloth as soon as possible.

Handle with Care and Remove During Physical Activities

Avoid rough handling that can dent, warp, or scratch gold plated items. Remove watches, bracelets, rings, and eyewear before physical activities where banging or friction can occur. This includes gardening, working out, playing sports, and sleeping.

Try to avoid direct contact between gold plated jewelry pieces since friction will gradually erode the plating. Store pieces separately in a jewelry box. Don’t pile them together in a drawer or dish.

Get Periodic Replating or Touch-Ups

As gold plating thins and wears unevenly, periodic re-plating provides a fresh start and restores an even finish. This involves stripping the old plating and applying new plating. A cheaper option is getting a local touch-up plating to cover worn spots.

Depending on the extent of wear, re-plating may be needed every 1 to 5 years to keep gold jewelry looking its best. Heavily worn pieces will need replating more frequently than delicate items worn only occasionally.

Signs Your Gold Plating is Wearing Off

How can you tell when 1 micron gold plating is starting to wear away and fade? Here are some telltale signs to watch out for:

Visible base metal peeking through, often a dull gray appearance
Brassy, yellowish, or black tarnished spots
Pink or copper colored areas on gold over silver or copper cores
Scratches exposing base metal, especially on high wear areas like edges and backs
Gold color rubbing off onto cloths during cleaning
Faded color, especially in areas prone to friction
Speckled or blotchy gold tone instead of consistent coverage
Roughened or peeling texture where plating has thinned

If you notice any of these warning signs, it’s time to take steps to restore your gold plating or have it re-plated before further deterioration occurs. The sooner you catch plating wear, the better the outcome.

Restoring Worn 1 Micron Gold Plating

Once gold plating begins visibly wearing off, you have a few options to restore the appearance:

Professional Re-Plating

This involves completely stripping the item down to the base metal and applying fresh gold plating to a thickness of at least 1 micron. Jewelry re-plating services can closely match the original gold tone. The process takes time and care to achieve an even, durable finish.

Light Polishing

Very mild buffing with a jewelry polishing cloth can sometimes temporarily improve the look of worn gold plate. But it only removes tiny amounts of plating and doesn’t fix the underlying issue.

Touch-Up Plating Solutions

Liquid gold polishing solutions allow you to lightly re-plate small worn spots at home. They contain real gold suspended in a gel-like solution. The gold particles fill in scratches and thin areas when rubbed on the metal.

Gold Plating Repair Pens

These pens deposit gold compounds onto worn spots with a controlled applicator tip. They offer an easy DIY way to disguise thin or scratched areas. However, the gold color may not perfectly match the original plating.

Lacquer Coatings

Some gold plated items, like vintage jewelry or eyewear, may be lacquered to protect the delicate plating underneath. As lacquer deteriorates, removing it and applying fresh clear lacquer can help prolong the lifespan of the thinning gold plate underneath.

In many cases, full professional re-plating is required to comprehensively restore worn 1 micron gold plating. But for quick touch-ups, the other options help camouflage damaged areas.

Choosing the Best Thickness for Gold Plated Items

When purchasing gold plated accessories, it helps to understand the lifespan and limitations of different plating thicknesses:

1 micron – Ideal for affordable jewelry and accessories worn infrequently. Provides a rich initial gold shine but requires careful maintenance.
2-3 microns – The sweet spot for gold jewelry worn regularly but not daily. Provides decent durability at a moderate price point.
5 microns – Recommended for jewelry worn daily, like rings or bracelets prone to knocks and friction. Offers long-lasting wearability and value.
10+ microns – Reserved for specialized industrial applications where hardness is critical. Overkill for most jewelry or decorative uses.

The ideal plating thickness balances visual appeal, lifespan, and budget. For the best return on investment, aim for at least 2 microns for frequently worn pieces, and 1 micron for occasional decorative use.

Conclusion

One micron gold plating offers an eye-catching gold finish at an affordable cost. But given the thinness of the layer, it does require careful maintenance and infrequent use to reach a lifespan of 1 to 3 years.

Friction, chemical exposure, moisture, and neglect all contribute to the fading and wearing down of 1 micron gold plating over time. By understanding what causes plating degradation and taking steps to protect items, you can safely enjoy the luxurious glow of gold plating.

References

A research paper from the journal Surface and Coatings Technology on the wear and corrosion resistance of different thicknesses of gold plating: Wang, L., Sundararajan, S., & Rama Krishna, L. (2002). Wear and corrosion resistance of electroless Ni-P and Ni-P/hard particle composite coatings. Surface and Coatings Technology, 154(1), 84-93.
A gold plating technical guide from Hoover & Strong, a leading US jewelry manufacturer, covering factors impacting plating durability: Hoover & Strong. (2012). Gold Plating Technical Guide. Hoover & Strong. https://www.hooverandstrong.com
A blog post from Jewelry Notes on the care and recommended usage for different gold plating thicknesses: Jewelry Notes. (2018). Gold Plated Jewelry Guide: How Durable and Safe is Gold Plating? Jewelry Notes. https://www.jewelrynotes.com/gold-plated-jewelry-guide/
A technical paper from the Santa Fe Symposium on jewelry manufacturing discussing micron measurements and tests of gold plating wear resistance: Wang, Y., Raizenne, M., & Yoon, S. (2004). Wear resistance of electroplated gold coatings. In Proceedings of the Santa Fe Symposium on Jewelry Manufacturing Technology. Met-Chem Research.
A gold plating informational page from PBD Plating providing an overview of processes and typical plating thicknesses: PBD Plating. (2017). Gold Plating Services. PBD Plating. https://www.pbdplating.co.uk/processes/gold/