If you enjoy model building, like Gunpla, military kits, or custom figures, you might ask: Should you topcoat before panel lining?
There are many ways to finish a model. However, knowing the right order of steps is key. This is especially true for applying top coats and panel lines. It can really affect how your build looks in the end.
We’ll cover what a top coat is. Lets look at how it affects panel lining. Lastly, we’ll explain how long it takes to dry before moving on.
A top coat is a clear layer that protects painted, decaled, or detailed surfaces. It keeps the finish, unifies surface texture, and adds sheen. You can choose from high gloss to flat matte. In top coats, the modeling world comes with several uses:
There are many different types of top coats: lacquer, acrylic, or enamel sprays. Choosing the best one will depend on the base paint matched with the kind of finish desired.
Panel lining is the process of adding thin ink or paint to the recessed lines of a model. This technique highlights details, adds realism, and creates depth. It’s a key finishing technique for model kits. It greatly enhances how your build looks.
You can line panels with markers, fine brushes, or capillary-action panel line washes. Enamel-based products are especially popular. Without proper preparation, panel lining can ruin your work. This is true, especially if you apply it directly onto flat or unprotected paint.
Yes, applying a top coat before panel lining is highly recommended.
Here’s why this order works best:
Before using any panel line wash, protect your painted surfaces and decals. A gloss top coat creates a protective layer. This layer stops panel line pigment from staining or damaging the paint below. This is especially critical if you're using enamel or solvent-based washes.
A gloss top coat gives a smooth surface. This helps the panel liner flow into the recessed lines through capillary action. Matte surfaces, on the other hand, tend to absorb pigments and make cleanup more difficult.
Wipe off any excess pigment on your panel lining. A speedy and safe endeavor can be mounted over a gloss topcoat. Without a protective layer, you could accidentally leave smudges or remove the finish while cleaning up.
Panel lining over a gloss coat makes the appearance cleaner and more professional. After you finish the lines, apply a top coat. This will lock everything in and help it last longer.
Here’s a tried-and-true workflow to get the best panel lines and finish on your model:
Firstly, with your airbrush, paint the entire model with base-paint and let it dry fully. Before curing any surfaces, you can airbrush or hand-paint. Then, off onto the next step.
Spray a top coat over the entire model surface with gloss. This will bring some smoothness to the surface for panel lining.
Timing is important, so let’s take a common question:
The dry time of a top coat depends on the product, the environment, and its application. Generally speaking:
Acrylic-Based Spray Top Coats:
Humidity or cold weather slows lacquer drying. For the best results, wait at least 24 hours before lining. This time helps the top coat harden completely. It also stops reactions with your lining solution or cleanup methods.
Caution: If you rush this step, you might get smudges, foggy finishes, or unwanted chemical reactions between layers.
Once dry, use your favorite panel lining method on the gloss topcoat. You can choose enamel washes, panel line markers, or thinned-down acrylics. Work on small areas. Let the pigment settle in the lines. Then, gently wipe the surface with a cotton ball or Q-tip. Use a liner-type thinner that's slightly damp.
To finish, dry the panel liner completely. Then, use a final spray coat. This will seal everything and give you the desired finish. A matte finish will look realistic; glossy or semi-glossy will give a shiny look that is great for display.
Skipping the top coat before panel lining may seem like a time-saver, but it comes with risks:
Most advanced modelers might line directly on bare paint sometimes. However, beginners and pros usually add a gloss top coat first. This helps them avoid costly mistakes.
So, do you top coat before panel lining? The answer is a resounding yes. Applying a gloss top coat first makes panel lining easier, cleaner, and far more forgiving. It protects your paint. It improves line definition. It also sets the stage for a perfect final finish.
Just remember to give your top coat enough time to dry—how long does it take for top coat to dry? Plan for at least 24 hours. Patience here pays off with better results.
No matter if you're a model builder, contractor, or homeowner, a good top coat matters. At Epoxy Master Installation, we offer premium top coat systems for homes, businesses, and industrial spaces.
We understand the importance of durability, clean finishes, and detail that lasts. Check out Epoxy Master Installation to see how we protect your projects—layer by layer.
Q: Can I apply a matte coat before the panel lining?
A: You can, but it isn't really a good idea. The matte being porous may absorb the panel liner and make the cleanup messy. Gloss is always the best for results.
Q: Should I wait a full 24 hours before panel lining?
A: Yes, especially when using solvent-based panel liners. This makes sure the top coat is cured and will not mean reaction with your liner.
Q: Can I apply another top coat after panel lining?
A: Sure. A final top coat does seal in the panel lines and keeps them from wear and tear, which is important if the model is to be handled a lot.
Q: Is there a way to hasten the drying?
A: Drying can be hastened under good ventilation and low humidity. Avoid heat or fans directed toward the model-such may cause uneven curing or dust contamination.
Q: What is the right type of top coat?
A: Gloss is what you want before any panel lining so that the cleanup is easy. Depending on the final look you want, apply either matte or semi-gloss as a final coat.
