How to Assemble the IMS 1/144 V Siren Neptune

By Dollfie — VOLKS USA, INC. | Published: 2026-10-30

Category: How-to Guides

Step-by-step guide to building the IMS 1/144 V SIREN Neptune kit. Includes prep, assembly, and common pitfalls for injection-molded scale model kits.

Quick Answer

Assemble the IMS 1/144 V SIREN Neptune by carefully removing parts from the runners, cleaning nubs, test-fitting, and using plastic cement. Pay extra attention to sharp edges and the decal sheet.

Why This Kit Needs Careful Handling

The IMS 1/144 V SIREN Neptune is an injection-molded plastic kit with about 200 parts. Its design includes sharp edges, so you need to be deliberate when sanding and fitting to avoid injury or breaking delicate pieces.

Unlike some resin kits, this one is unpainted and comes with a decal sheet. You'll need to plan your painting and decal application early in the build.

Assembly Steps

Prepare your workspace and tools: Set up a clean, well-lit area. Gather side cutters, a hobby knife, sanding sticks (400-1000 grit), plastic cement, tweezers, and a cutting mat. Have a small container for loose parts. Check that your hobby knife is sharp—dull blades can slip and damage parts.
Remove parts from runners: Use side cutters to snip each part off the runner, leaving a small nub. Do not cut flush to the part—trim the nub later with a hobby knife or sanding stick. Cut away from your body and wear safety glasses if possible. Plastic shards can fly.
Clean and test-fit each sub-assembly: Sand nubs smooth. Dry-fit parts without glue to check alignment. Use a fine file or sanding stick to adjust fit. Mark any tight spots with a pencil. If a joint is too tight, sand the male peg—never force it. Forcing can crack the part.
Glue parts with plastic cement: Apply a thin layer of plastic cement to both mating surfaces. Press together and hold for 10-15 seconds. Wipe away excess glue immediately with a damp cloth. Do not use super glue on large flat surfaces—it can fog clear plastic and is brittle.
Apply decals after painting: Paint the kit (if desired) and let it cure fully. Cut out each decal, soak in warm water for 10-20 seconds, slide onto the model, and position with a damp brush. Blot excess water. Use a drop of decal setting solution to help the decal conform to curved surfaces.
Final assembly and touch-ups: Attach all sub-assemblies (arms, legs, head, backpack). Check for visible seams or glue marks; scrape or sand them. Apply a clear coat if you want to protect the decals. Let the final assembly sit for 24 hours before handling to allow all glue to cure completely.

Kit Specifications

IMS 1/144 V SIREN [NEPTUNE]: Scale 1/144, height about 175mm, width about 145mm, 200 parts, includes decal, intended for ages 15 and up, sharp edges. The small scale and high part count require patience and good lighting. The decal sheet means you can achieve a detailed finish without painting every surface.
IMS 1/144 V SIREN [NEPTUNE]