STEP 5: Weather Your Mecha
This guide is part of Green Chapter’s Beginner Paths: Mecha & Moss. In this series, we explore how to combine miniature landscapes, moss ecosystems, and model kits to create immersive living worlds with structure, storytelling, and atmosphere.
Follow the guides in sequence for the best learning experience.
Give your RX-78-2 a history of battle and time
Tools You’ll Be Using
Before starting, prepare the tools and materials used for weathering and finishing your RX-78-2.
These tools will help you create damage, add realism, and protect the model for use in a humid terrarium environment.
You will be working with:
- Gundam markers — for panel lining and basic shading
- Tamiya Weathering Master — for dirt, rust, and surface wear
- Tamiya enamel paints — for deeper weathering effects
- Water-based paint — for blending and subtle tones
- AK Weathering pencils — for scratches and fine details
- Mr. Super Clear Matt — for sealing and protection
- Grinder / rotary tool — for physical damage and edge wear
Step 1 — Creating Physical Damage
The first step is to make your model look like it has gone through battle.
Using a grinder or rotary tool, carefully:
- cut into edges of armor panels
- drill small impact marks
- roughen corners and surfaces
Focus on areas that would naturally take damage:
- edges
- joints
- exposed surfaces
This step is subtle — avoid overdoing it.
A few well-placed marks feel more realistic than excessive damage.
Step 2 — Painting and Weathering
Once damage is created, you begin adding visual depth.
Using your tools:
- Gundam markers for panel definition
- Tamiya Weathering Master for dirt and wear
- enamel paints for streaking and aging
- water-based paint for blending tones
- AK Weathering pencils for scratches and highlights
Work in layers instead of trying to complete everything at once.
At this stage, your model should start to feel like it belongs to an environment — not a factory.
Step 3 — Sealing and Protection
After weathering is complete, the model must be sealed.
This is especially important because it will be placed in a humid terrarium environment.
- mount the RX-78-2 securely on a base
- apply a layer of Mr. Super Clear Matt
- ensure even coverage across all surfaces
This protects your work and prevents moisture from affecting the finish.
What You Should See
At this stage, your RX-78-2 should feel completely different from when you started.
You should see:
- physical damage that feels intentional
- surface wear that matches your scene
- a finish that looks aged, not freshly built
Most importantly, it should feel like it belongs in a world, not on a shelf.
Continue to STEP 6: Plant the World
Now that your RX-78-2 is ready, it’s time to bring the environment to life.
You will begin:
- adding substrate layers
- integrating moss and plants
- merging terrain and model into a single ecosystem
Proceed to STEP 6: Plant the World →
