Aluminum is one of the most popular materials used for construction, home furnishings, home exteriors(shutters, sidings, window frames), patio furniture, and many more because it is affordable, durable, sturdy, lightweight, corrosion resistant, and gives a modern look. Aluminum has got a natural silver look, but if you want to enhance the look and make it colorful, painting the aluminum surface is a good option. In this article, we have covered in detail how to paint aluminum, whether it's a new item or refreshing the old ones.
Steps to Paint Aluminum Objects With a Fresh Coat of Paint
Materials Required
- Wire brush
- Drop cloth
- Gloves
- Gears for eye protection
- Sandpaper
- Degreasing detergent
- Spray primer(Self-etching)
- Spray paint(acrylic)
- Enamel sealant
Step1 : Cleaning the Surface
The first step before transforming the aluminum surface is to clean it properly, so find an open space to perform this activity, then put the drop cloth to avoid the surrounding surface from any paint spilling, mix a few drops of degreasing cleaner in a bucket of warm water, put a rag in the solution to remove dirt and dust from the surface. Afterwards, scrub the surface gently with a wire brush if there's rust because the paint won't stick properly if the surface has rust or dust. Finally let the aluminum dry completely before starting the next process.
Step2 : Sanding the Surface
Sand the surface with sandpaper using protective gear like goggles, gloves, and a dust mask to prevent any dust particles from harming you. Sand every corner and edge of the object thoroughly using a power sander for a larger object, especially a coarse sander. Use fine grit when sanding for the second time. Clean the object again, adding degreasing cleaner in warm water to remove dust gathered from sanding.
Step3 : Apply a Coat of Self-etching Primer Followed by Sanding
A coat of primer is essential for aluminum surfaces because it enables the paint to stick properly. Buy primer in spray paint and spray a thin layer as per the directions given in the box, let the primer dry completely and sand the surface again using sandpaper and clean the dust with a rag.
Tips Before Painting the Object
Always buy the paint labeled with "exterior grade" for painting an item used for an outdoor area and never buy high gloss paint because glossy paint will highlight imperfections like dents and scratches
Step4 : Apply the Paint
The application style of paint, i.e., brush or spray, depends on the size of the object and your personal preference. Follow the number of coatings as instructed by the manufacturer and also if sanding is needed or not. Allow the paint dry before moving to the next step.
Application of Sealer
Once the paint has completely dried, apply a minimum of two coats of sealer to protect it from any kind of peeling, scratching, or fading.
Step5 : Post-painting Cleaning
Once the painting process is winded up, it's time to clean up the mess. Wash the paint brush with warm water to remove the paint and keep the painting cans open until they solidify because liquid forms can't be disposed of in regular trash as they are hazardous.
How to Paint the Aluminum Mesh Chair
Buy the spray paint, clean the chair thoroughly, put tape on the areas where you want to avoid paint stains, take the chair in an open area and put a drop cloth to prevent paint from spilling on the floor. Apply the first coat of paint on both sides(front and back) of the mesh for best effect. Then, apply paint on the aluminum armrest and body. Leave it until it dries, then apply the second coat for the finishing. Let it dry, and it's ready to use.
How to Paint Aluminum Siding
To extend a fresh look to the old home, painting aluminum siding is a smart idea.
Step1 : Prepare the Surface
Wash the siding properly with a pressure washer to remove dust, dirt, and peeled paint, if any. Clean the areas with tough stains or dirt using a siding cleaner with the help of a stiff brush, wash it again, check for any damaged design parts and replace the damaged siding part. Sand the siding using a sandpaper for a spic and span siding surface and let the siding dry before applying primer.
Step2 : Apply Primer
Use an oil-based primer for aluminum siding.
Step3 : Apply Paint
Apply acrylic exterior paint over the primer because acrylic paint is best for exterior areas because it can withstand any weather condition and prevents peeling and fading. After one coat, sand the surface for any extra primer or unevenness. Let the first coat dry and then apply the second and final coat of paint.
Step4 : Protection
To prevent staining from roof runoffs, get installed gutter guards and trim plants regularly to ensure they don't touch the house and damage it.
How to Paint Aluminum Door/Window
Painting the aluminum door and window gives an entirely new and refreshing look to the indoor and outdoor house. Follow the steps in the below lines to finish the work:
Step1 : Clean It Properly
Clean the door and window thoroughly using soap water using a scratch brite pad. Clean the frame too. Remove the paint spots using a paint scraper and let it dry completely.
Step2 : Masking
Cover the surrounding area using newspaper or drop cloth, tape around the window and door frame, and a latex glove over the door handle to prevent paint stains.
Step3 : Cover the Rubber Seals With Tape
Cover the rubber seals with masking tape and cover the glass with paper to avoid paint spillage.
Step4 : Apply Primer
Once you are sure that the windows and doors are ready, apply etch primer, as it is rust-resistant. Once the primer dries, using sandpaper, sand the surface once
Step5 : Painting
It's time to paint the door and window. Let the paint dry before you use it.
Step6 : Remove the Mask
Once the work is winded up, unmask the door and window for the perfect look.
The Best Paint for Aluminum Siding
Acrylic
- It is easily available
- It is easy to work with
- It dries quickly
- Brands of acrylic paints are Valspar, Season Flex satin exterior tintable paint
- It costs between $20-$50 per gallon
- Per gallon covers around 250-400 square foot
- The disadvantage is it doesn't mix well with other paints
Acrylic Latex Paint
- The brands of acrylic latex paint are Sherwin Williams Weathershield exterior
- It is resistant to peeling and cracking
- Easy to work with
- Kids, pets and eco-friendly as it doesn't have hazardous chemicals
- It costs between $20-$50 per gallon
- Per gallon covers around 250-400 square foot
- The disadvantages are it is prone to rust and not suitable for non-primed metal
Self-Etching Primer
- The brands that sell this primer are Rust-Oleum Flat Aluminum Primer
- One coat is sufficient with these primers
- Rust resistant
- It cost between $50-$65 per gallon
| Comparison Metrics | Acrylic | Acrylic Latex Paint | Self-Etching Primer |
| Cost($) | 20-50 | 20-50 | 50-65 |
| Appearance | Satin to gloss | Satin to gloss | Dull matte |
| Options of Colors and Textures | Various finishes and colors are available | Various finishes and colors are available | Merely color options are available |
| Use | Easy to work with | Easy to work with | Little complicated to use |
| Environmental Angle | Environment, kids and pet friendly | ||
| Durability | Most durable |
Conclusion
A common question arises regarding how to paint aluminum because aluminum is commonly used in homes in various forms, such as window frames, furniture, sidings, etc. The answer is to follow the simple steps given in the article for different items and paint the objects. You will love to see the result. For the best result, make sure to adhere to the instructions and tips before starting the painting work.
