Porsche 934 RSR Martini Model Set: Build and Paint Guide
By Modellbau & Plastikmodellbau | Published: 2026-10-31
Category: How-to Guides
A step-by-step build and paint guide for the Porsche 934 RSR Martini model set, covering assembly order, Martini livery painting, and decal application for a clean race car finish.
Quick answer
Build the Porsche 934 RSR Martini model set by assembling the multi-part engine and interior first, painting the body and Martini livery before final assembly, and applying decals last with a setting solution. Work in subassemblies and test-fit the separate hood before painting to avoid rework.
Why subassemblies matter on this kit
The kit includes a multi-part engine, a multi-part roll bar, and a separate movable hood. Painting these parts after they are glued into the body makes it harder to reach corners and risks gluing moving parts solid. Build and paint the engine, roll bar, and interior as separate subassemblies, then install them once the body shell is painted and decaled.
The rotating wheels are another reason to keep rolling parts free of paint and glue. Mask the wheel hubs or paint them off the car so the wheels still turn after final assembly.
Martini livery painting order
The Martini decor is supplied as decals, not paint masks. That means you do not need to spray the blue and red stripes; you need a smooth, glossy white or light base coat for the decals to sit on. Paint the body in thin coats, let it cure fully, then apply a clear gloss coat before decaling. A glossy surface reduces silvering and lets you reposition decals slightly.
If you choose to paint the stripes instead of using the decals, mask carefully and keep the stripe widths consistent. The decals are the more reliable route for most builders because they carry the correct Martini proportions.
Decal application on a race car
Race car decals often span compound curves, especially around the fenders and rear quarters. Use a decal setting solution to soften the film, and a soft brush or cotton swab to press the decal into panel lines. Work one decal at a time and let each one dry before moving to the next.
The Martini stripes are long and thin, so they are prone to folding over on themselves. Cut the decal sheet into smaller sections if needed, and keep your fingers wet to avoid sticking.
Step-by-step build and paint process
- Wash and test-fit: Wash the sprues in lukewarm soapy water to remove mold release, then test-fit the body, hood, and engine without glue. Check that the movable hood opens and closes freely before painting. If the hood binds now, it will bind worse after paint; sand the edges slightly before proceeding.
- Build and paint subassemblies: Assemble the engine, roll bar, and interior as separate units. Prime and paint them before installing into the body. Keep the wheels off the car and paint the hubs and tires separately. Label or bag each subassembly so you do not mix up left and right parts.
- Paint the body shell: Apply a primer, then thin coats of your base color. For the Martini livery, use a white or very light base so the decals read correctly. Let the paint cure for at least 24 hours, then apply a clear gloss coat. Do not handle the body with bare fingers after the gloss coat; oils can affect decal adhesion.
- Apply the Martini decals: Cut out each decal, dip it in water for a few seconds, and slide it into place on the glossy body. Use a setting solution and a soft brush to conform the decal to curves. Work from the center of each stripe outward to push out air bubbles. If a stripe starts to fold, stop and float it back into water rather than pulling it flat.
- Final assembly and clear coat: Install the painted engine, interior, and roll bar into the body. Fit the wheels and check that they still rotate. Apply a final clear coat over the decals if you want a uniform finish, but test on a spare decal first. A final clear coat can soften decals, so apply thin mist coats rather than a wet coat.
Product facts
- Model Set Porsche 934 RSR "Martini": Easy-to-build model kit of the Group 4 GT class racing car used from 1976, with a multi-part engine and separate movable hood. The movable hood and engine mean you should plan display options and paint the engine before closing up the body.
Model Set Porsche 934 RSR "Martini" - Model Set Porsche 934 RSR "Martini": Includes a decal for the Martini decor and a multi-part roll bar. The decal is your main livery tool, so a glossy base coat and setting solution are more important than masking stripes.
