Quick Answer

Use Acrysion BN04 Base Yellow as a primer and base coat for model kits. It covers mold color well and enhances the vibrancy of subsequent acrylic colors.

Why Base Yellow Works as a Primer

Acrysion BN04 is part of the ACRYSION BASE COLOR line, designed to cover mold color effectively while enhancing the finish of ACRYSION COLORS. It also functions as a surfacer and primer, making it suitable for priming ABS and resin parts.

Using a yellow base coat is especially useful when you plan to paint bright colors like red, orange, or yellow, as it provides a warm undercoat that improves color saturation.

Trade-offs to Consider

While BN04 works as a primer, it may not hide deep scratches or heavy sanding marks as effectively as a dedicated gray primer. For heavily sanded surfaces, consider applying a thicker coat or doing a light sanding after priming.

As with all acrylic paints, proper surface cleaning and drying are essential for adhesion, especially on resin parts that may have mold release agents.

Step-by-Step Priming with Acrysion BN04

  1. Prepare the Surface: Clean the model parts with warm soapy water or a mild degreaser, then rinse and let dry completely. For resin parts, gently sand to remove any mold release agent. Skipping this step can cause paint to bead up or peel later.
  2. Shake the Paint Thoroughly: Shake the Acrysion BN04 bottle for at least 1-2 minutes to ensure the pigment is fully mixed. If using an airbrush, thin with a suitable acrylic thinner to a milk-like consistency. Insufficient shaking leads to uneven coverage and color streaking.
  3. Apply Thin, Even Coats: Spray or brush a thin, even coat over the entire surface. Let it dry for 10-15 minutes, then apply a second coat if needed. Avoid thick layers to prevent runs and loss of detail. Multiple thin coats are better than one heavy coat for a smooth finish.
  4. Let It Cure Fully: Allow the primer to cure for at least 24 hours before painting over it. This ensures maximum adhesion and prevents the topcoat from lifting. Rushing the cure time can cause the topcoat to peel or crack.
  5. Sand Lightly if Necessary: If you notice any rough spots or dust nibs, lightly sand with a fine grit (1000-2000) after the primer has cured. Wipe away dust before applying your topcoat. This step is optional but improves the final smoothness of your paint job.

Product Facts

  • Acrysion BN04 - Base Color Base Yellow: Acrysion BN04 is a base color in the ACRYSION series that covers mold color well and enhances ACRYSION COLORS. It also functions as a surfacer and primer for ABS and resin. You can use it as a primer and base coat in one step, saving time while ensuring better color payoff for bright topcoats.

    Acrysion BN04 - Base Color Base Yellow

    Acrysion BN04 - Base Color Base Yellow