Paints, Tools and Hobby Supplies for Plastic Model Kits and Dioramas

Building a plastic model kit is only half the process. The finish — how the model looks once assembled, painted and weathered — is what separates a completed kit from a display piece. This guide covers the paints, tools and hobby supplies worth knowing about for plastic model kits and dioramas, organised by category and sourced from verified retailers.

Hobbyzone Aircraft Assembly Jig for scale model aircraft building

Image Credit: HobbyZone / Hobbies

View the Hobbyzone Aircraft Assembly Jig at Hobbies (affiliate link)


Paints — Which System to Choose

The two dominant paint systems for plastic model builders are acrylic and enamel, with each having distinct characteristics that suit different stages of the build and different finishing techniques.

Acrylic paints are water-based, dry quickly, clean up with water and are the most versatile option for general painting, layering and detail work. They are the recommended starting point for new builders. The main brands available at Hobbies UK include:

  • Humbrol Acrylic — one of the longest-established model paint ranges in the UK, covering a comprehensive colour palette specifically developed for scale models. Available in tins and airbrush-ready formulations.
  • Vallejo Model Colour — highly pigmented acrylic in dropper bottles, widely regarded as the standard for brush painting on plastic. Consistent coverage, excellent range of historical and military colours.
  • Vallejo Model Air — the same formula optimised for airbrushing. Water-based, quick-drying, ready to use through an airbrush without thinning.
  • Tamiya Acrylic — Tamiya's own paint range designed to work with their plastic kits. It offers good coverage, dries quickly, and is available in the specific colours referenced in Tamiya kit instructions.

Enamel paints take longer to dry and require mineral spirits for thinning and clean-up but produce exceptional results for panel line washes, weathering effects and certain finishing techniques that acrylic cannot replicate as easily. Humbrol enamel is the most widely available in the UK and one of the most widely used enamel systems in European model building.

Tamiya spray paints in rattle-can format are the standard choice for basecoating — applied over a primer, they produce a consistent, even coat that is unaffected by acrylic or enamel paints applied over it for detail work. Available from Hobbies UK.

For builders who want a professional-grade acrylic system developed specifically for miniatures and scale modelling, Pro Acryl by Monument Hobbies is worth considering — particularly for figures, dioramas and any build where skin tones, fine layering or OSL effects are involved. US customers use monumenthobbies.com (coupon code: SCALEMOTION776); EU customers use monumenthobbies.eu (coupon code: SCALEMOTION496). Our Pro Acryl buyer's guide at the sister site Scale & Motion Plus covers the range in detail.

Weathering effects — washes, pigments, streaking effects — sit on top of the main paint system and are applied last. Hobbies.co.uk stocks AKs. Interactive weathering pencils and a range of weathering products alongside the main paint ranges. Monument Hobbies' weathering pigments are particularly strong for dust, rust and soot effects on diorama bases and military subjects.

Primers and Varnishes

Priming before painting is essential on plastic — it provides a consistent surface for paint adhesion and reveals any flaws in the assembly that need filling before the colour coats go on. Tamiya surface primer in spray format is the most widely used on plastic kits. Humbrol primer is an alternative for brush application.

Varnish applied after painting seals the finished model and allows washes to flow into recesses correctly. Gloss varnish is applied before washes and decals; matt varnish is the final coat to eliminate any sheen. Both are available from Hobbies.co.uk across Humbrol, Tamiya and Vallejo.

Monument Hobbies' Pro Acryl spray primers are formulated to work directly with Pro Acryl over the top and are worth considering if you are building on the Pro Acryl system.

Model Painting Tools & Brushes

The brush range at Hobbies.co.uk covers the full spectrum from entry-level synthetic sets through to pure sable brushes for fine detail work:

  • Model Craft Fine Synthetic Brush Set of 6 — a practical entry-level set covering the main sizes needed for basecoating, layering and detail work on a standard plastic kit.
  • Pure Sable Brushes — Natural sable holds more paint, maintains a finer point and produces a better result for detailed figure work and fine panel lines. It's a step up worth making once you are comfortable with the basics.
  • Humbrol Detail Brush Pack (Sizes 00, 0, 1, 2) — a focused set of small-to-medium brushes covering the sizes most used in model painting.
  • Revell Quality Brush Sets — flat brushes designed for larger surfaces, base coating and dry-brushing effects.

Monument Hobbies' PRO Series brushes are designed specifically for miniature and scale model painting applications, including detail work, drybrushing and stippling — worth considering alongside the Pro Acryl system.

Tools

The tools range at Hobbies.co.uk covers everything needed from sprue to finished build:

Cutting and prep: Cutting knives and cutting mats for removing parts from sprues cleanly; chisels, saws, files and sanding sticks for cleaning up mould lines and fitting parts. A sharp hobby knife with spare blades and a self-healing cutting mat are the two most essential tool purchases for any builder.

Masking: Tamiya masking tape is the standard for masking off areas before airbrushing or spray-painting — it leaves clean edges and removes without lifting paint underneath. Model Craft flexible masking tape is an alternative for curved surfaces. Both are available at Hobbies.co.uk.

Airbrushing: The airbrushing section at Hobbies.co.uk covers dual-action airbrushes (Badger and Spraycraft), compressors, cleaning equipment, cleaning jars and replacement parts. For builders moving from rattle cans to airbrushes, the Spraycraft Airbrush and Compressor Kit is the accessible starting point in the range. For a more capable setup, the Sparmax ARISM compressor is the quality tier option.

Lighting and magnification: LED lamps, magnifier lamps and helping hand brackets are increasingly important for detailed figure and diorama work where painting small areas under good light makes a measurable difference to the result.

Tweezers: Essential for placing decals, small photo-etch parts and any detail element that fingers are too large to handle accurately.

Diorama and Basing Supplies

Diorama building extends the plastic model kit into a scene — a base that contextualises the subject and tells a story. The key supplies are basing materials, scenic elements and weathering products.

Monument Hobbies produces a range of basing textures covering sand, gravel, mud, rubble and mixed surface pastes – applied directly to a base to create ground texture before painting. Their weathering pigments add dust, rust staining and environmental wear to both the base and the model itself.

Hobbies.co.uk stocks wood stains and varnishes for wooden diorama base construction, alongside scenic scatter materials and finishing products for the full range of base types used in scale modelling.

For UK-based builders wanting Citadel basing materials — static grass, texture pastes, tufts and scatter — Merlin's Miniatures model basing range covers these comprehensively. Coupon code SCALEANDMOTION at checkout.

Where to Buy — Quick Reference

Browse the Catalogue

Looking for plastic model kits, paints, tools and hobby supplies? The Scale & Motion curated catalogue organises products by category, all linking directly to verified retailers.
Explore the Scale & Motion catalogue

Further Reading

Image Credit: Hobbies.co.uk and Monument Hobbies product imagery. All product images © their respective manufacturers.

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