Decals are essential for adding realistic details such as insignia and numbers to plastic scale model kits, helping to bring your model to life. Correct application improves both the appearance of the markings and the model’s final finish. This guide explains how to apply decals to scale models effectively.
1. Prepare the Surface
Make sure the surface is smooth and free of debris before applying decals. Decals adhere best to a glossy finish. Before decal application, use an airbrush or spray can to apply a clear gloss coat to matt or rough model surfaces with a hobby-specific gloss varnish. Let it cure completely before proceeding. Use a soft cloth to wipe the surface clean of dust and fingerprints.
2. Cut Out the Decals
Use a sharp hobby knife or fine scissors to cut out each decal as close to the edge as possible, keeping the visible carrier film to a minimum. Work with one decal at a time to avoid mishandling or confusion.
3. Soak the Decal
Submerge the trimmed decal in lukewarm water in a shallow dish for 10–30 seconds, until it loosens from its backing paper. Avoid soaking the decal for too long, as it may separate prematurely and become difficult to handle.
4. Slide the Decal Onto the Model
Use tweezers and a soft brush or cotton bud to slide the decal gently from its backing paper onto the model’s surface. Use a wet brush or toothpick to position the decal precisely. The water provides lubrication, allowing small adjustments during placement.
5. Set the Decal
After positioning the decal, blot away the remaining water with a lint-free paper towel or soft cloth. Press down gently to remove air bubbles. Using Micro Set decal setting solution can help the decal adhere and conform to curved or detailed surfaces. Apply Micro Sol or a stronger decal softener to areas that remain problematic.
6. Dry and Cure
Allow the decals to dry completely, preferably overnight. Avoid touching or handling them while they cure, as this may cause them to move or become damaged.
7. Seal the Decals
Once the decals are completely dry, apply a clear gloss or matt topcoat to protect them and help blend the decal edges into the surrounding surface. The final coat creates a more uniform appearance and guards against peeling. Careful preparation also reduces silvering, the cloudy effect caused by trapped air beneath the decal film.
With careful preparation, accurate placement and enough drying time, applying decals can give your scale model a convincing and realistic finish.
