Neon signs are not merely decorative pieces; most of them signify establishments, companies, or unforgettable times. However, as mentioned earlier, neon signage also has the risk of breaking, especially the glass tubes carrying the gas that makes them illuminate.
So, how to fix a broken neon sign tube, if you have one? Do not panic! This guide will explain the problem and recommend a course of action that may involve repairing it on your own or knowing when it is time to get experts in.
Neon Signs Information
First things first, let's talk about why it is important to know the ins and outs of neon sign workings before making any repairs. The simplest neon sign is made of the following components:
- Glass Tubes: These are bent into curves of some shapes and are filled with gas (mostly neon or argon). They light up when an electrical current passes through them, stimulating the gas inside, thus producing the sought-after glow.
- Electrodes: The electrodes are at both ends of the tube and work to transfer the electrical energy into the gas.
- Transformer: This one is used to change a standard voltage into the high voltage that neon lights need to function.
When a neon sign fails to work, it could result from a broken glass tube, shorted electrodes, or a malfunctioning transformer. This guide will narrow down to the repairs of broken tubes only.
Evaluating the damage
- Visual Method of Assessment:
To begin with, check the neon sign. It should not have visible defects such as cracks, breaks, and discoloration of the tubes. Also, check for any arcing and look for any flickering lights that may indicate a fault in the electrode or transformer.
- Look into the Electrode Connections:
Occasionally, the issue is found at the electrodes rather than the tubes themselves. Make sure they are properly connected and not burnt.
- Transformer Test:
Assess the transformer if the tubes appear functional. First, remove the sign from the electrical outlet, and use a multimeter to examine the transformer output.
Restoring a Faded Neon Pipe
If you are interested in learning how to fix a neon sign with a broken tube, then you can follow the steps below.
Step One: Ensure Your Safety
Before starting any restoration, ensure that the power supply to the neon sign has been disconnected and turned off. Put on your safety goggles and gloves to avoid any injuries from glass fragments while working and for protection from electric shock as well.
Step Two: Take out the Sign
Gently take away the neon sign from the place of fixing. Most of the signs are either hanging on a surface or stuck on a statue. A screwdriver could be used to untwist some screws and slowly pull the sign outwards from its mount. Some large signs may call for help so that the sign does not fall out of place.
Step Three: Assess where the Damage has Occurred
After removing the neon sign, the next step is to take a look at the tube. For a simple break (a tiny crack or a small piece), it is possible to fix it using a decorative seal or special neon adhesive. When the break is more than that, the entire piece could be cut out and changed.
Step 4: Clean the Area
Before any gluing is done, the repaired section should be wiped with a clean and dry cloth. Scrub off the area and get rid of any particles such as dust, dirt, or grease that may compromise the stickiness. In case the damage is acute, one can opt to cut the damaged portion using a glass knife. Take caution since it can leave flimsy or sharp parts.
Step 5: Repair the Break
For Minor Cracks:
Take some neon-safe adhesive and apply it to the crack. Gently press the edges together and hold for the time recommended in the instructions of the adhesive sachet.
For Extensive Breaks:
In case the tube becomes damaged to a point where quick gearing up is not possible, it would be prudent to get some replacement for that particular part. This means that it is possible to cut the tube, remove the defective part from the gas tube, and then make provisions for filling in fresh neon.
Step 6: Electrodes Replacement
If at any point in the process, the electrodes are found to be damaged, they must be replaced. Follow these steps:
Remove the Old Electrodes: Using a plier, lightly pull the old electrodes out from the connecting tube without breaking them.
Install New Electrodes: Fix new electrodes to the ends of the neon tube and ensure they are tightened properly. Where there are loose connections, apply electrical tape to tighten them.
Step 7: Recharge the Neon Tube
Gas refilling of a neon tube is tedious work due to the modern apparatus involved, best left for the professionals. Still, in case you strongly wish to try it yourself at home, you can try these steps:
Purchase Neon Gas: Neon or argon gas can be purchased from a dealer that specializes in this type of gas. Please remember to get the proper fittings needed to connect the gas cylinder to the neon tube.
Connect the Gas Supply: The gas supply needs to be connected to the tube. It may be necessary to use a special fitting so that an airtight seal can be made.
Evacuate Air: Using a vacuum pump, remove air from the tube. This step is critically important, as the gas must be introduced properly so that the tube is filled without any impurities.
Inject the Gas: When the air is removed, neon gas is very carefully brought into the tube. The pressure is watched to prevent excess gas from coming into the tube.
Seal the Tube: When this has been done, the ends of the tube are filled in and appropriately capped.
Step 8: Test the Sign
When restorative actions and power supply replenishment have been finalized, the next step is testing the functionality of the sign:
Reconnect the Sign: Refit the sign into its respective place from where it has been detached. And ensure that all the connections are properly adhered to, and no part of the sign is misplaced.
Power On: Insert the sign back into the socket and switch it on. Make a close observation of the sign watching for any part that does not light up, or any flickering or dimming of the lights while on.
Check for Leaks: Wait for a minute or two and observe if the sign has any leaked gas or any kind of electrical defect.
Troubleshooting Common Issues
- Flickering Light: If the neon sign is unstable and flickers, this can signal a bad transformer or possibly wobbly electrode connections. Inspect the connections and make sure they are firm or else replace the transformer.
- Uneven Lighting: If some parts of the light are bright while others are dim, there may be air in the tube. If this is the case, vacuum the tube and fill it again with gas.
- No Light: If the whole sign is dark and cannot be seen at all, check the output from the transformer first. Where this is out of the question, it could mean that the electrodes or the gas is the problem.
When to call a professional?
- Profound Breakage: If the neon sign or tube has huge cracks on it, or cracked tubes are too many, repair or replacement will require a proper professional who has the right tools.
- Risk Factors: In case you feel apprehensive about fixing anything electric or working with gas, it is prudent to seek the services of a trained and qualified neon sign repair technician.
- Existing Warranties: Before you make any repairs to the neon sign, ensure that you read the conditions regarding repairs while the device is still under the warranty. Limitations may apply on repairs if possessed neon signs are still in the warranty period.
Conclusion
A broken neon sign tube can be fixable at home if you have the necessary skills and equipment. Knowing the workings of a neon sign and how to evaluate and fix damages will enable you to repair such ornamental items without difficulties.
But then again, safety is something that comes first in all the activities and processes. When dealing with extensive damage or any other process that brings any uncertainties, please call for help. For instance, a neon sign that has been cared for over the years will still light up the space and draw attention for that extra time.
Contemplating repairing an old one or buying a new one, ‘the glow effect of neon will always remain a striking feature in our surroundings. Through proper care and repair, one can preserve that ‘glow’ for a very long time.