How to Apply Decal Sets: Minni Magg, LOC IV, and Cruiser
By High Power Model Rocketry | Published: 2026-10-28
Category: How-to Guides
Learn the step-by-step process for applying vinyl decals from Loc Precision to your Minni Magg, LOC IV, or Cruiser rocket. Get tips for smooth, bubble-free results.
Quick answer
To apply your Minni Magg, LOC IV, or Cruiser decal set cleanly, prepare the surface, use the wet method for positioning, and squeegee from center to edge.
Why surface prep matters for vinyl decals
Loc Precision uses premium cast vinyl with ECOSOL inks for vibrant, conformable graphics. But even the best decals will lift or bubble if the rocket body isn't clean and smooth. Spend a few minutes wiping down the area with isopropyl alcohol and a lint-free cloth before you start.
Wet vs. dry application: which to choose
For large decals like the Cruiser set, the wet method gives you time to slide the decal into perfect position. For smaller ones like the LOC IV or Minni Magg decals, dry application works fine if you have a steady hand. When in doubt, use the wet method—it's more forgiving.
Step-by-step decal application process
- 1. Clean the surface: Wipe the rocket body tube with isopropyl alcohol and a lint-free cloth to remove grease, dust, and mold release. Let it dry completely. Skipping this step is the most common cause of decal peeling after flight.
- 2. Cut and separate the decal: Use scissors to trim excess carrier film around each decal piece, leaving a 1/8-inch border. Peel the backing paper slowly from one corner. If the decal curls, lay it flat for a minute before continuing.
- 3. Apply transfer tape (optional but recommended): For larger decals (Cruiser set), place a piece of clear transfer tape over the decal, burnish it down, then peel the backing. This keeps the design flat and aligned. Without transfer tape, long decals may fold onto themselves and become unusable.
- 4. Position using the wet method: Spray the rocket surface lightly with water and a drop of dish soap. Slide the decal into place; it will float on the solution so you can adjust alignment. Work quickly—once the water dries, the decal bonds permanently.
- 5. Squeegee out bubbles and excess water: Use a squeegee or credit card wrapped in a soft cloth. Start from the center and push outward in overlapping strokes. Wipe away any expelled liquid. A common mistake is pressing too hard, which can stretch the vinyl and distort the graphic.
- 6. Let it cure: Allow the decal to dry for at least 24 hours at room temperature before handling or flying. Avoid direct sunlight during curing. Flying too soon can cause the decal to shift or peel off during high-speed ascent.
Decal sets covered in this guide
- Decal Set Minni Magg: Printed on premium cast vinyl using ECOSOL inks in CMYK mode for attention-grabbing results. Cast vinyl conforms tightly to curves and fins, reducing the risk of lifting on your Minni Magg rocket.
Decal Set Minni Magg - Decal Set LOC IV: Professionally manufactured with integrated print/cut capabilities for precise edges. This means the LOC IV decal set arrives pre-cut and ready to apply, saving you trimming time.
Decal Set LOC IV - Decal Set CRUISER: Uses the industry’s most advanced print head technology for sharp, durable graphics. The Cruiser set's larger graphics stay vibrant and resist fading after multiple flights.
