Prototype Painting & Finishing Services

Colour varies with material, texture and light
So we match colour on your part, not just on a swatch

We finish parts so they look credible, behave as expected and stand up to review

Standard

Product surface finishes with a job to do

Matte, gloss and satin coatings applied with precision, each chosen to improve how the part looks, performs or lasts

Several attempts to get colour and texture right is normal. We expect it

In-house colour matching using computerised mixing systems and technicians with forty years of finishing experience across a broad range of products and materials.

Logo With Various Paint Finishes

Colours, Textures & Gloss Levels

We help you choose colours and finishes that represent your production intent as closely as possible.

Read more: how prototype finishing makes field testing more accurate.

Colours

We mix colours to match any physical sample you provide, as well as Pantone and RAL references. RAL and car paint colours are mixed on the paint maker’s computerised system. For Pantone, we keep a record of every colour we have mixed over the last 10 years; a new Pantone or sample colour is mixed by eye, which can take a couple of hours, and once we have the mix we can reproduce it easily. We also offer specialist finishes such as flip, pearl, metallic and chrome, which are applied as paint rather than cast in during vacuum casting.

‍Textures

We match VDI reference textures, or a physical sample you send us.

Gloss Levels

We offer gloss levels from matte to high gloss. Each interacts with colour differently: matte tones colour down and gloss intensifies it, so it is worth seeing a sample before you decide.

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Custom

Colour and texture that support the part

We match colours and apply specialist coatings to help parts present well, handle well and read correctly in review, testing and use.

Metallic

Adds depth and visual impact when the part needs a more finished, production-like look.

Soft-touch

A tactile coating that improves grip and feel, used when handling and surface experience matter as much as appearance.

Self Injector Prototype
Hand Finishing ProductsPainted SLA inhaler prototypesPaint Mixing In HouseWall-mounted display of logo paint swatches in various colours and finishes.
Process

Surface preparation makes the finish work

We clean and sand every part to remove contaminants and create proper adhesion. This step is what makes the finish bond properly and hold up over time.

Hand Finishing Products
Priming

Primer makes the finish bond properly

We choose primers to suit the material and top coat, so the finish adheres well, lasts longer and performs as intended.

Painted SLA inhaler prototypes
Painting

All colours mixed in house

We apply coatings in controlled conditions to keep colour and texture consistent. Multiple thin coats give a better result than one heavy coat.

Paint Mixing In House
Samples

Speciality finishes, matched to anything

We finish parts to mimic almost any surface: VDI textures, anodised metallics, machined surfaces and soft-touch coatings, on 3D printed, cast and machined parts. The same finishes go on the display and appearance models we make: see our model making services.

Mica metallic paint finishes

“There are many firms that can build rapid prototypes, but few can boast the knowhow that only comes from a background in traditional model-making. 
What truly sets CF apart though is the quality of service they’ve been providing us with for the past 20 years.”

Director of Design, Consulting Firm

Get a finish sampled

Send us a part, a colour reference or a sample and we will match it.

Seven Meridian 7K painted, uniquely shaped speakers arranged in a row against a white background.

Painting and finishing: frequently asked questions

Can you match a colour to a Pantone or RAL reference, or to a sample?

Yes. We mix colours in house to match a physical sample you send us, or a Pantone or RAL reference.

What finishes and textures can you apply?

Gloss levels from matte to high gloss, metallic, flip, pearl and chrome paint finishes, soft-touch coatings, and VDI textures, matched to a reference or a sample. Favourites in the workshop include our chrome paint finish, clear tinted lacquer over bright or metallic colours, and a marbled effect.

What parts can you paint?

3D printed, cast and machined parts. We choose the primer to suit the material and the top coat.

How much time does painting add?

It depends on the size, shape and colour. As a guide, a high-gloss or soft-touch finish takes 2 to 3 days for one 3D printed part, 5 to 6 days for 20 and 20 to 25 days for 100. A two-colour, masked finish takes 2 to 3 days for one part, 5 to 6 days for 20 and 10 to 15 days for 100. A simple painted finish on a couple of overnight-printed parts can sometimes be done in a day. We confirm the timing at quote.

Does paint change the size of a part?

Yes. On small, high-detail models we allow about 0.2 mm per surface for a high-gloss finish and 0.1 to 0.15 mm for satin, matt or spark finishes. Larger parts carry a thicker build, which isn’t noticeable at that scale. Tell us which faces fit together, such as clips, bores and threads, so we can allow for it or mask them.

What is the largest part you can paint?

Flat panels up to 1 m × 2 m, or parts up to about 1 × 1 × 0.6 m. In practice, anything we can fit through the paint shop door.

Which painted finish is the most durable?

2K lacquer, in matt, gloss or soft-touch, is the toughest because it is a sprayed resin coating. Gloss can still be scratched, and matt and soft-touch can be marked, but they stand up best to handling and wiping clean.

Can you paint 3D printed parts?

Yes. We prime, fill and sand 3D printed parts to remove layer lines, spray them in our in-house booths and finish them with a lacquer, with 2K lacquer the most durable. SLA parts need the least preparation because their surface is smooth and non-porous; FDM parts need more filling first.

“I can show a new model maker how to spray, resin cast or create CAD, but attention to detail is the vital skill every prototyper needs.” Jim, Workshop Operations Manager