Sofia Martinez
Face shields are an important piece of personal protective equipment (PPE) that can be used to protect the respiratory tract during infectious disease outbreaks. Face shields can be assembled using a variety of materials and methods. Some face shields come with adjustable straps and a flip-up visor, allowing for convenience and comfort. This type of face shield is easy to assemble and usually involves gluing an elastic band to a plastic shield and foam forehead piece. It is important to ensure that the glue is spread evenly and that there are no stray glue strands on the plastic shield. Other face shields can be assembled using clear plastic binder covers, foam window seals, elastic tape, duct tape, scissors or a box cutter, and a stapler. Face shields should be cleaned regularly using soapy water or rubbing alcohol, and they can also be washed in a dishwasher if the water temperature is below 60°C.
| Characteristics | Values |
|---|---|
| Assembly Time | 2 minutes |
| Assembly Materials | Plastic shield, elastic band, foam, glue, duct tape, scissors or box cutter, stapler |
| Cleaning | Soapy water, dishwasher, UVC sterilisation boxes |
| Features | Flip-up capability, adjustable straps, sponge headband, anti-fog |
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What You'll Learn
Attaching the elastic band
Firstly, prepare your work surface by covering it with cardboard or a similar protective material. This will prevent any unwanted glue stains. Place the paper template on the covered surface, with the side that will be glued facing up. Use tape to secure the template, ensuring you cover the squares where the elastic will be glued.
Now, fill the circles on the elastic area with glue. Use a glue gun for precision and be mindful of any stray glue strands, wiping them away immediately. Firmly press the end of the elastic band onto the first circle, ensuring the glue spreads to the end of the plastic shield.
Next, stretch the elastic band across the foam, creating a secure connection. Fold the other end of the elastic band under, pressing it onto the second circle at the end of the template. Again, ensure the glue spreads to the end of the plastic shield.
Before proceeding, check that the glue has adhered properly. Carefully tug on each end of the elastic to confirm its firmness. If the glue is not spreading or adhering, the temperature might be too cold, impacting the glue's effectiveness.
Once you are satisfied with the security of the elastic band, gently pull on the foam to ensure it is also firmly attached. Finally, perform a thorough inspection of the face shield for any fingerprints, smudges, or glue strands. If necessary, clean the shield with rubbing alcohol, which is an effective cleaning agent for this purpose.
By carefully following these steps, you can ensure that the elastic band of your plastic face shield is securely attached, providing a comfortable and protective fit for the user.
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Using glue
To assemble a plastic face shield using glue, you will need a plastic sheet, elastic bands, foam, a hot glue gun, a drill, and a cylinder for bending the plastic. You will also need to prepare a clean work area and clean your hands with soap and hot water for at least 20 seconds. You can use cardboard to protect your work surface from glue.
First, cut your elastic bands to 18" in length. You will also need two strips of 1/2" foam, one cut to 9 1/4" long and the other to 9" long. Next, bend your plastic sheet over a cylinder, holding it in place for 20-30 seconds. Use oven mitts to avoid burning yourself on the hot plastic.
Now, you can begin assembling the face shield. Take your longer strip of foam and apply a generous amount of glue to it using your glue gun. Line up the top edges and glue the foam to the face shield. Then, apply glue to the shorter strip of foam and press it onto the foam already on the shield, with the textured sides together. This will give the wearer a smooth surface against their forehead. Press and hold the two strips together until the glue sets.
Once the glue is dry, you can trim the edges of the foam if needed. Use a drill to create holes in the foam for the elastic bands. Finally, fill the circles on the elastic area with glue and press the elastic bands onto the glue, spreading it to the end of the plastic shield. Stretch the elastic across the foam and fold it under, pressing it onto the other circle at the end of the template. Check that the glue has spread to the end of the shield and tug on each end of the elastic to ensure it is secure.
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Cleaning the shield
Firstly, it is important to note that different types of face shields may have specific cleaning requirements. Some face shields, for example, are coated with an anti-fogging substance, and therefore, the recommended cleaning method is to simply soak the shield in water for a few minutes, gently rub off any dirt, and then let it air dry without touching the screen until it is completely dry. Using any other cleaning products or methods on these types of shields may result in a blurry mess.
For other types of face shields, a mild soap and warm water solution can be used. Cover the visor with the soapy water or submerge the entire shield in the solution. Rinse off the soap and either let the shield air dry or gently wipe it down with a soft, gentle cloth. It is important to use a microfiber or soft cloth to avoid scratching the shield.
If there are glue strands or fingerprints on the plastic shield, rubbing alcohol can be used to clean it. It is important to be careful and avoid getting stray glue on the plastic shield, as it can be difficult to remove.
For more stubborn dirt or hard-to-remove crud, a plastic polish like Novus Plastic Polish (#1 for regular cleaning, #2 for most needs, and #3 for heavy scratches) can be used. Additionally, a light wiping with a used dryer sheet can help reduce static cling and maintain a clean shield.
To avoid scratches or marks on the visor, it is recommended to store the face shield on a flat, clean surface when not in use. Placing a towel or paper underneath can provide further protection against scratching.
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Adjusting the strap
To begin adjusting the strap, identify the two circles or slots on the plastic shield where the elastic band will be attached. These are typically located on the side or temple area of the shield. Place the end of the elastic band on one of the circles or slots, and press it down firmly, ensuring that the glue spreads to the end of the plastic. Stretch the elastic band across the foam, making sure it is taut and secure. Fold the end of the elastic under, and press it onto the circle or slot on the other side of the shield, again spreading the glue to the edge.
Check that the elastic is securely attached by tugging gently on each end. You should feel resistance, indicating that the glue has adhered properly. If the glue is not spreading or the elastic is detaching too easily, try warming the glue or the work area slightly, as cold temperatures can affect the adhesion.
Once the elastic is securely attached, you can adjust the strap to your preferred fit. Thread the strap through the slots on the forehead band or the plastic shield itself, ensuring that it is aligned correctly. Adjust the length of the strap as needed to achieve a comfortable and secure fit. You may need to experiment with different lengths to find the ideal tension and placement for your head.
Some face shields may also feature adjustable buckles or clasps on the strap, allowing for a more customised fit. Adjust these mechanisms until you achieve the desired strap length and tightness. Remember to clean your hands before and after adjusting the strap to maintain proper hygiene, especially if the face shield is being used in a medical or infectious disease setting.
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Adding a sponge headband
Firstly, gather the required materials. You will need a sponge or foam headband, double-sided sticky tape, and a plastic shield. Ensure your work surface is protected, as you will be using glue. Prepare your glue gun and place the paper template on your work surface, taping it down to secure it.
Next, apply the double-sided sticky tape along the inside of the longest edge of the plastic shield. Carefully stick the sponge headband onto the tape, ensuring it is securely attached. You can further reinforce the headband by sewing the two upper corners of the face shield to the headband.
Finally, adjust the headband to your comfort. You can tie the headband into a bow, or simply stretch and adjust the elastic band to fit your head securely. Check that the sponge headband is attached firmly and make any necessary adjustments.
Your plastic face shield with a sponge headband is now ready for use! This combination provides both protection and comfort, making it ideal for long periods of wear.
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Frequently asked questions
To assemble a plastic face shield, you will need a plastic shield, foam, elastic, duct tape, scissors or a box cutter, and a stapler. First, place the end of the elastic band on the first circle and press firmly, spreading the glue to the end of the plastic shield. Stretch the elastic across the foam and fold the end under, pressing onto the other circle at the end of the template. Check that the glue has spread to the end of the plastic shield and that there are no stray glue strands. Then, tug on each end of the elastic to make sure it is secure.
To clean a plastic face shield, first separate the screen from the attachment. Wash the shield with a brush or a soft cloth in a bucket to avoid scratching. You can also wash the face shield in a dishwasher if the water temperature is below 60°C.
Once assembled, check your plastic face shield for fingerprints or other smudges. If there are any, clean the shield with rubbing alcohol.
