For an extra layer of protection, businesses of all sizes added plexiglass barriers to their work environment during the COVID-19 pandemic. The reality is, many barriers are now worn out and damaged and there is an increasing need to learn how to care for plexiglass barriers. While plexiglass is a popular choice because of its durability and clarity, it is susceptible to scratching and cracks.
In this blog, AGC Signs will review plexiglass repair, specifically the repair of scratches and other minor damages. Typically speaking, plexiglass scratches can be repaired by using an abrasive acrylic polish, while broken or cracked plexiglass can be repaired via an acrylic solvent cement.
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For more detailed information about DIY plexiglass repair, please check out the sources used for this article which are listed further below. Also, contact us today if you need plexiglass barriers or more maintenance tips.
DIY plexiglass repair
Although it’s durable, plexiglass can scratch or break if not cared for.
1. Plexiglass Repair: Fixing Scratches
The first step in fixing any scratch on your plexiglass barrier is determining the depth of the scratch. According to Acmeplastics.com, "any scratches deeper than 5 mm are exceptionally heavy scratches – these are generally regarded as irreparable, and can only occasionally be repaired by specialty buffing tools."
If you run your fingernail across a scratch and it gets snagged, the scratch is probably beyond your repair. If the scratch is less than 5 mm in depth, however, then try this step-by-step process.
Consider this step-by-step guide for repairing scratches on your plexiglass:
A) Clean the surface:
Using a clean, soft cloth, wipe the plexiglass surface clean with water or a special acrylic cleaner. Even dish soap can be used to remove any dirt. Afterwards, rinse and dry off the plexiglass.
B) Use an Acrylic Polish:
For mild scratches, try using an abrasive acrylic polish (like the Novus Polish Products). Using a cloth, polish the scratched area using circular motions until the area is smooth, then wipe off the polish with a clean cloth.
Below is a video from TAP Plastics on repairing surface scratches with a Novus polish.
In the above video, TAP Plastics shows how to repair surface scratches.
C) Use Fine Sandpaper
If the scratch cannot be removed with acrylic polish or for more moderate scratches, use fine sandpaper (beginning with 600 grit or 800 grit sandpaper).
Wet the sandpaper and gently sand in circular motions over the scratch. Afterwards, rinse the surface with water, then take finer sandpaper (1000 grit or 1200 grit) and repeat the same process, sanding the scratch in circular motions until the surface is smooth. Finally, rinse with water and wipe with a clean cloth.
D) Buff the Surface
Lightly coat the repaired surface with a buffing compound and, if you have access to a low-speed buffing wheel, buff the surface to finish. Again, wipe off the surface with a clean cloth when finished.
Buff the surface of your plexiglass with a buffing compound.
E) Replace Your Plexiglass
If the scratch still appears, then the scratch is probably too deep for repair. If this is the case, contact us at AGC Signs for new plexiglass barriers. Also, keep in mind that abrasion weakens the plexiglass, so try to use the finest sandpaper possible.
2. Plexiglass Repair: Fixing Minor Damage
If a piece of your plexiglass breaks off and you think it can be glued back on, you can actually find plexiglass adhesives at the hardware store. If you review different DIY videos, you will see that there are quite a few different ways to bond plexiglass. Have a look at the video below from TAP Plastics to see how to glue plexiglass/acrylic.
Learn how to glue plexiglass in this video from TAP Plastics.
Cracked Plexiglass
Now, if you have plexiglass that has cracked, you can also make use of plexiglass adhesives. In "How to Repair a Cracked Plexiglass Windshield" by Joshua Bailey, you can read step-by-step instructions on fixing a crack.
However, your best bet is to use a specialized acrylic solvent cement, continue reading to learn how to use this type of solvent.
A) Clean the cracked surface area
Use a mild soap or detergent mixed with water to clean the cracked area. Gently remove any dust, dirt, or debris from the crack. Ensure the area is completely dry before proceeding with the repair.
B) Preparation
If the crack is small and manageable, consider using a specialized acrylic solvent cement. For larger cracks, prepare a plexiglass patch that is slightly larger than the cracked area. You can create the patch by cutting a piece of plexiglass to fit the damaged area using a saw or cutting tool appropriate for plexiglass.
If you have a cracked piece of plexiglass, do not worry! It can likely be fixed.
C) Applying Solvent Cement
Apply the acrylic solvent cement to the cracked area. Use a small applicator or a syringe for precise application. Be cautious not to apply too much solvent, as it could damage the plexiglass further. Hold the edges of the crack tightly together as the solvent cement sets. Follow the manufacturer's instructions on the drying time.
D) Clamping or Taping
Secure the cracked edges together using clamps or strong, durable tape. Make sure the clamps or tape do not apply excessive pressure that could cause the plexiglass to crack further. Use protective padding between the clamps and the plexiglass to prevent any damage.
By following these plexiglass repair steps, your barriers will look brand new.
E) Sanding and Polishing
Once the solvent cement has fully dried, use fine-grit sandpaper to smooth out any rough edges on the repaired area. Start with a coarser grit and gradually move to finer grit for a smoother finish. After sanding, use a plastic polish and a soft cloth to restore the shine and transparency of the plexiglass.
F) Replace Your Plexiglass
If the crack is too extensive for solvent cement to provide a strong enough bond, or if the plexiglass is significantly compromised, it might be best to replace the entire piece. Consult with a professional if you're uncertain about how to proceed or if the crack seems too severe for a DIY repair.
Get quality plexiglass from AGC Signs.
3. Plexiglass Repair: Replacing Your Old Plexiglass
In this section, we will examine when you should replace your plexiglass barriers, how to do so, and how to find a reputable company that sells/repairs new plexiglass barriers. Continue reading to learn more.
A) When to Replace Plexiglass Barriers
The replacement of plexiglass barriers depends on various factors, including the level of wear and tear, the extent of damage, and the specific environment in which the barriers are installed. Generally, plexiglass barriers should be replaced when they exhibit any of the following signs:
Significant damage: As mentioned, if your plexiglass barrier has cracks, chips, or deep scratches that compromise its structural integrity or visibility, it should be replaced promptly.
Yellowing or discolouration: Over time, plexiglass can become discoloured or yellowed, which can affect its transparency and appearance. If cleaning and maintenance do not restore its original transparency, consider replacing it.
Degradation due to exposure: If the plexiglass is exposed to harsh environmental conditions, such as extreme temperatures, chemicals, or UV radiation, it may become brittle, cloudy, or lose its structural strength. In such cases, it is advisable to replace the barrier.
Regular inspection and maintenance can help identify signs of wear and tear, enabling you to replace the plexiglass barriers before they pose a safety risk or become ineffective. If you are unsure whether your plexiglass barriers need replacement, consult a professional for a thorough assessment.
B) How to Dispose of Plexiglass Barriers
Disposing of plexiglass barriers should be done in a way that is both environmentally responsible and compliant with local regulations. Here are some common methods for getting rid of plexiglass barriers:
Recycling: Check with your local recycling centre or waste management facility to determine if they accept plexiglass for recycling. Some facilities may have specific guidelines for accepting and processing plexiglass. Ensure that you follow any preparation instructions provided by the recycling center.
Donation: If the plexiglass barriers are still in usable condition, consider donating them to organizations or individuals who may find them useful. This can help reduce waste and benefit others who may need such materials for various projects or purposes.
Reusing or repurposing: If the plexiglass barriers are in good condition, consider repurposing them for other projects or using them for alternative applications. This can help extend their lifespan and minimize waste.
Disposal: If recycling or donation is not possible, contact your local waste management authority to inquire about the appropriate method of disposal. They can provide guidance on whether the plexiglass can be included in regular waste disposal or if it requires special handling.
It is essential to follow local guidelines and regulations related to waste disposal and recycling to ensure that you dispose of plexiglass barriers in an environmentally friendly and responsible manner.
Avoid simply throwing plexiglass barriers in regular garbage without understanding the proper disposal methods, as this can contribute to environmental pollution and potentially violate local waste management regulations.
Plexiglass Replacement & Repair
Are you one of many business owners that purchased plexiglass barriers during the COVID-19 pandemic and they are now worn out and damaged? Perhaps you have gotten used to having plexiglass barriers and you enjoy the peace of mind they give you and your workers.
For thorough repairs or for full replacements, you will want to contact the professionals at AGC Signs. If you have trouble with plexiglass repair or you need a high-quality replacement for your plexiglass barriers, be sure to contact us at AGC Signs. Also, check out our gallery of plexiglass barriers and shields.
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