Industrial painting: define the finish and scope
Paint is specified by more than colour. Substrate, use, preparation and finish determine which quote fits your job.
Distinguish liquid paint and powder coating
Liquid painting applies a liquid material. Single and multicomponent systems have different application and drying conditions. Powder coating uses powder and suitable curing. For existing parts, check compatibility with the material, mounted components and future use. A requested gloss or effect does not specify the entire system.
Account for the existing surface and preparation
Steel, aluminium, wood and suitable plastics need different preparation. State the material and known existing layers. Rust, grease, dirt or poorly adhering paint can add work. Agree cleaning, removal, sanding or priming. The firm must assess an unknown old coating; new paint does not replace a suitable substrate.
Agree colour, gloss and texture separately
A known RAL or NCS code helps agree colour but does not define gloss, texture or the complete appearance. A sample may help before a visible series. For repairs, define local touch-up versus repainting the whole surface. Existing finishes may have aged, so the same code does not guarantee an invisible repair.
| Feature | Useful information |
|---|---|
| Colour | Known code or desired colour |
| Gloss and texture | Matt, satin, glossy; smooth or textured |
| Reference | Sample, existing part or agreed visible area |
State use and areas that must remain unpainted
Indoor or outdoor use and known demands matter. Heat, cleaning, friction or chemicals may need a different system from decoration. Threads, fits, sealing faces and electrical contacts must not be painted accidentally. Describe critical areas and specifications. Confirm suitability and inspection rather than relying on general scratch or chemical resistance claims.
Plan workshop, site work and drying
Loose parts can often be handled in a workshop. A mounted machine may allow site work if access, protection and downtime are suitable. Define dismantling, transport and reassembly responsibilities. Surface-dry does not always mean fully cured or ready for service. Match packaging, delivery and reuse to the chosen paint system rather than assuming a universal drying time.
Compare the complete painting job
Geometry, condition, count and finish affect effort. Edges, different colours, masking or preparation may matter more than area alone. Check inclusions and extras. Painting alone is not equivalent to a quote including stripping, priming, packaging and delivery. Give count and finish per type for different parts.
| Comparison point | Check in the quote |
|---|---|
| Preparation | Cleaning, removal of old layers and primer |
| Finish | Colour, gloss, masking and agreed quality |
| Complete scope | Dismantling, logistics, packaging, timing and VAT |
Useful information for a suitable quote
Describe the object, approximate dimensions and condition. Give material, count and colour if known. For different objects, one description with information per type is enough. State requirements or unpainted areas. An undecided finish is no obstacle: the firm can clarify it with you. Location and preferred timing support initial planning.
Frequently asked questions
Is industrial painting always powder coating?
No. Liquid painting and powder coating are different options, depending on the job.
Must I know a colour code?
No. Give a desired colour or ask for advice. A known code helps agreement.
Can a machine be painted on site?
It may be possible. Clarify access, protection, safety and downtime first.
Is the same colour code enough for touch-up?
Not necessarily. Ageing, gloss and texture can differ. Agree the intended result.
Which areas must remain unpainted?
It depends on the part. State critical threads, fits, sealing faces and contacts.
Can I use parts immediately after painting?
Not automatically. Drying and full service readiness depend on the system and conditions. Agree release for use.
