If you are using a wall filler brand like Tetrion or Everbuild, you will have to let the filler dry for two hours before it's dry to the touch, and if you wish to paint over it, you will have to let it dry for 24 hours.
Yes, you can paint straight onto filler, but you should adhere to the curing times on the box of filler you're using. Ensure your filler is dust-free to aid adhesion.
Bondo will absorb the paint if not primed and it will not look good. In this article, we will share a few guidelines on how to use Bondo body filler on wood for your home improvement project.
Different fillers have varying levels of absorbtion as does the original surface of the wall. That means when you paint over it the paint behaves in a different way on each surface. Ideally when you use filler you need to prime it with a watered down solution of your top coat. I suspect you already painted with a nor.
You will need to prime the filler before painting to prevent subsequent coats being absorbed more rapidly than on other areas.
Drying times
Even though the surface may seem dry, even if it has been left overnight, it may still have some shrinking to do. Therefore, when painting over it, the paint film dries and then shortly after, the caulk continues to shrink, pulling the paint film apart and leaving cracks on the surface.
Filler absorbs water, so I'll leave it to dry for at least 24 hours before painting. The panels on this side are now ready for paint. I've gone over the bare metal with 100 grit sandpaper (to remove the surface rust that appeared instantly on wet sanding).
A standard-grade body filler is lightweight, easy to spread and dries in around 20-25 minutes. Standard body filler sands down easily to blend seamlessly with the rest of a vehicle's surface with proper priming and painting, making it perfect for working on minor dents and scratches.
Ensure the filler is touching both sides of the gap. Run a wet finger or knife along the filled line, pushing it into the gap. Use a damp cloth to remove any excess. Allow the line to dry at least 30 minutes before taping and/or painting.
For Auto and Home
Our Bondo® Metal Reinforced Filler (PDF, 153.25 Kb) is fully sandable and accepts standard primers and auto paints.
Epoxy auto primer can be applied on top of everything from fillers and fiberglass to prepared steel or factory finishes. Dry time is quick as well, making this a great all-around auto primer for home mechanics and auto body shops alike.
Sanding is often a crucial step for ensuring that your surface is ready to be painted. If you don't have a properly sanded surface, paint may not adhere to certain items properly. You can oversand, undersand and often people underestimate its importance. But, you don't have to be a pro to sand a surface.
Just paint the wall twice and it should be fine. If you really want to you can touch up the filled areas first but make sure you brush it out well so you don't get brush marks showing after that dries and you roll.
Can I touch the area that's been treated after a dermal filler treatment? The urge to touch the newly treated area can be strong – but resist it! Touching the area freshly treated with dermal fillers carries the risk of causing an infection and inadvertently moving the soft filler to another location.
Once you've filled in any cracks, take a piece of fine sandpaper and lightly sand all the walls and any peeling paint. Sanding will give the wall a texture that will help the new paint bind to the surface.
However, if you want to fill and start painting on the same day, use One Strike Quick drying multi-purpose filler, as it's ready to paint after 30 minutes of drying.
About 24 hours post-treatment, avoid saunas and hot showers. Heat can cause blood vessels to expand, leading to swelling, bruising, and faster breakdown of the hyaluronic acid in the fillers, compromising their longevity and efficacy. This is especially true for intense heat.
Do I need to prime filler before painting? Yes, you should treat filler like bare plaster; so, apply a primer before your topcoat. This is to ensure good adhesion and an even finish.
No. Primer keeps Bondo from absorbing paint and prevents dark spots in the repair.
Use 24- to 40-grit coarse sandpaper. To shape reinforced body fillers, use 40-grit sandpaper. Step 2: Use the 80- to 150-grit for light paint removal, shaping body filler and polishing the metal before applying primer. Step 3: Use 180-grit to smooth out scratches, straighten the body filler and eliminate defects.
Make sure that all filled areas are rubbed down smooth and level. You will need to prime the filler before painting to prevent subsequent coats being absorbed more rapidly than on other areas.
Allow the filler to dry fully, then rub down smooth and dust off to create a clean, smooth surface for decorating. To ensure even porosity spot prime with a thinned coat of your finish before painting the affected area (only if the finish is matt).
There can be many reasons why filler blisters or bubbles, but the most common factor is the humidity problem. At least 95% of bubbling or blistering problems we see with fillers on substrates are due to humidity.
In contrast to watering down paint, “thinning” paint is a regular practice for all painters and is recommended by the paint manufacturer. To “thin” paint, an exterior painter will add water to the paint bucket, increasing the paint's workability and slowing down the speed with which it dries.