Rubberize It: A Guide To Diy Rubberized Coating For Metal At Home

Rubberizing metal at home is a simple process that can be done by anyone. It is a great way to protect metal objects from wear and tear, and can even be used to coat cars and home accessories. The process involves cleaning the metal surface, preparing a rubber coating solution, and then applying the coating through dipping or spraying. The rubber coating solution can be purchased from hardware stores or online, and it is important to follow the instructions on the product for optimal results.

Preparing the metal surface

Removing Old Coating and Rust:

Start by using a utility knife to cut along any existing rubber coating on the metal. Be careful not to scratch the metal beneath. After cutting, the old coating should peel off easily. If it doesn't, use the knife to carefully scrape it off. Next, remove any rust from the metal surface using sandpaper or steel wool. You can also use a rust removal product, following the instructions on the packaging.

Smoothing Scratches and Cleaning:

Once the rust is removed, switch to a fine-grit sandpaper to smooth out any scratches caused by the coarser sandpaper. If there are no scratches, you can skip this step. After sanding, thoroughly clean the metal surface with mild soap and water, using a scrubber sponge if needed. If the metal has a sticky or gunky substance on it, wipe it down with a product like Goo Gone before washing.

Drying the Metal:

Ensure the metal is completely dry before proceeding. Wipe it down with a dry, microfiber cloth, getting into all the cracks and crevices. If there are small spaces that are hard to reach, let the metal air dry overnight. Alternatively, you can use a heat gun to speed up the drying process. Hold the heat gun a few inches away and move it in small circles to avoid overheating any spots.

Additional Tips:

If you're working with new metal, be sure to remove any oil from the manufacturing process. You can use a degreaser and then wipe the surface with acetone before applying the rubber coating. Following these steps will help ensure that your metal surface is properly prepared for a rubber coating application.

Choosing a rubber coating product

When choosing a rubber coating product, it's important to consider factors such as the type of application, the desired level of durability, and the surface you'll be working on. Here are some guidelines to help you select the right product for your project:

Type of Application:

• Liquid Rubber Dip: This method involves dipping the metal object into a container of liquid rubber. It is suitable for smaller objects that can be easily immersed. Look for products like Plasti-Dip, which offer a range of colours and are popular for coating exterior car parts.
• Liquid Rubber Spray: Spraying is a better option for larger objects or those with intricate details. Choose a product that comes in a spray can and offers a variety of colours and finishes.

Durability:

The thickness of the rubber coating will determine its durability. A thicker coat will be more durable but may require more coats and longer curing times. Consider the level of protection you need for your project and choose a product that meets those requirements. Some products, like Dura-Rubber, provide coverage estimates based on the desired thickness.

Surface Preparation:

Before applying any rubber coating, the metal surface must be properly prepared. This includes removing any old coating, rust, or dirt. Some rubber coating products may have specific surface preparation requirements, so be sure to read the instructions carefully. For example, Dura-Rubber recommends cleaning metal with a degreaser and wiping it down with acetone before application.

Environmental Conditions:

Consider the environmental conditions under which you'll be working and the final location of the coated object. Temperature and humidity can affect drying and curing times, so choose a product that is suitable for the conditions in which you'll be working. Some products may also have specific limitations or recommendations regarding exposure to sunlight, wind, or water.

Safety:

Always prioritise your safety when working with any coating products. Wear protective gear, including gloves, respirators, and safety goggles, as recommended by the manufacturer. Some products may have specific ventilation requirements, especially if you're working in an enclosed space.

Using liquid rubber dip

To use liquid rubber dip to coat metal at home, you will need to follow these steps:

Preparation

First, clean off any old coating on the metal with a utility knife. Then, remove any rust with sandpaper or steel wool. Next, use fine-grit sandpaper to even out any scratches. Wash the metal with soap and water, and wipe it down with a product like Goo Gone if it is sticky or gunky. Finally, dry the metal thoroughly with a microfiber cloth, ensuring you get into all the cracks and crevices. If there are lots of small spaces, you can leave it to air dry overnight, or use a heat gun to speed up the process.

Purchase a liquid rubber product like Plasti-Dip, which comes in a variety of colours. You will also need a thick, sturdy wire, a shallow disposable container, and a tarp or newspaper to catch any drips. Wrap the wire around the part of the metal you don't want to dip, leaving a few extra inches attached so you can hang it up to dry. Pour the liquid rubber into your container, and slowly immerse the metal object, holding it for a few seconds before slowly pulling it out. Hang the metal to dry for at least 30 minutes, and then repeat the dipping process two more times, allowing each coat to dry. Leave the final coat to dry overnight or for at least four hours.

Using liquid rubber spray

To use liquid rubber spray to coat metal at home, you'll need to follow these steps:

Preparation:

First, purchase a liquid rubber spray product from a hardware or home improvement store. Choose a product that suits your project—there are various colours and finishes available. You'll also need to prepare your work area by covering the floor with a tarp, drop cloth, or newspaper. Avoid spraying outdoors on a windy day, as the product could end up on you or nearby objects.

Coating the Metal:

Before you begin, tape off any areas of the metal that you don't want to be coated using painter's tape. If you're spraying a car rim, you can wedge playing cards under the edge of the rim to protect the tyre. It's also important to wear protective gear, such as a safety mask and rubber gloves, to avoid inhaling the spray or getting it on your skin.

Now you're ready to start spraying! Shake the can for about a minute without touching the nozzle, then hold it upright and press down on the nozzle. Spray the metal from a distance of 6 to 10 inches (15 to 25 cm) away, keeping the can moving to apply a thin layer of rubber over the entire surface. Allow the metal to dry for about 30 minutes in between coats. Repeat the spraying process six to eight times, or until you're happy with the finish. Remember to finish coating one side before flipping the object to coat the other.

Finally, leave your metal object to dry overnight, or for at least four hours. Do not remove any tape or protective coverings until the rubber is completely dry and hard.

Drying and curing the rubber coating

Drying Techniques:

• Allow sufficient drying time between coats: Liquid rubber can take between 4 to 8 hours to dry between coats, depending on weather conditions. Ensure you allow enough time for each coat to dry before applying the next one.
• Ensure proper ventilation: Good airflow helps evaporate moisture and speeds up drying. Work in a well-ventilated area to facilitate faster drying.
• Control temperature and humidity: Higher temperatures and lower humidity levels generally lead to faster drying times. Consider using a heater or dehumidifier if the environment is too cold or humid. However, avoid extremely high temperatures or excessively low humidity, as they can negatively impact the curing process.
• Apply even coats: Thicker coats will take longer to dry. By applying generous, even coats, you can speed up the drying process.

Curing Techniques:

• Allow sufficient curing time: Liquid rubber typically takes between 24 to 48 hours to fully cure. However, this can vary depending on factors such as application thickness, temperature, and humidity. Refer to the manufacturer's instructions for more accurate estimates.
• Understand the impact of weather conditions: Pay close attention to the weather forecast if applying liquid rubber outdoors. Avoid heavy rain or high humidity, as these conditions can prolong drying and potentially compromise the coating's integrity.
• Perform a touch test: To check if the liquid rubber is fully cured, gently press your finger onto the surface. It should feel dry and firm when ready.
• Be patient: A properly cured application will provide long-lasting protection. Allow the liquid rubber to cure completely before moving on to the next step of your project.

Additional Considerations:

• Ensure the metal surface is thoroughly clean and dry before applying the liquid rubber. Any moisture or dirt can affect the adhesion of the coating.
• Protect yourself during the application process. While liquid rubber is non-toxic, it is advisable to wear gloves and a breathing mask to avoid skin and inhalation exposure to the fine particles, dust, and debris.

Frequently asked questions