Industrial coatings & lubricants Specifications · Technical guide
How to write an industrial paint specification for a manufacturer
A practical method for defining exposure, substrate, preparation, coating-system roles, application and acceptance criteria.
Begin with the asset, not a product name
Identify the structure, equipment or component that needs protection. Record whether it is indoors or outdoors, the expected service life, access for maintenance and the consequence of coating failure. These facts give a manufacturer the context needed to interpret every later requirement.
Describe ultraviolet light, condensation, immersion, splash, chemicals, heat cycles, abrasion and cleaning as applicable. If the project uses a recognised service category, include its source and edition, but do not let a category replace the real operating conditions.
Define the substrate and achievable preparation
State the substrate grade and condition, including mill scale, corrosion, fabrication residues, galvanizing, previous paint or concrete moisture. Similar-looking surfaces can require different preparation and compatibility decisions.
Specify what can actually be achieved in the workshop or at site: cleanliness, profile, edge treatment, dust removal and access limits. When a preparation standard is mandatory, cite it precisely and define how compliance will be inspected.
Describe the complete system
Separate the role of each layer. The primer manages the prepared-substrate interface, intermediate layers can add barrier protection and build, and the topcoat manages final exposure and appearance. Request confirmation that all layers, thinners and repair materials are compatible.
Record colour, finish, number of coats, target film build and stripe-coat areas. Final numeric parameters should come from the approved technical data and project specification for the selected material, not a similarly named product.
Add application, inspection and order data
Name the application method, equipment, expected ambient range, ventilation, curing window and sequence. Define hold points for preparation, environmental conditions, film measurements, cure, appearance and repairs, together with the required records.
Send drawings, quantities, packaging, destination and document requirements. Mark mandatory criteria separately from preferences and ask the supplier to list assumptions, exclusions and missing information in the technical proposal.
Use approved project documents as the authority
This guide structures a review. Product suitability, numeric parameters, compatibility, approvals and commercial terms must be confirmed for the selected material, equipment and order.