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aeraunotical painting


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Aeronautical painting


The paint and varnishing processes are frequently used on aeronautic parts, for airframe parts, equipment, or engine parts. In addition to the visual aspect that paint can give to a part, paint and varnish products that are used in the field of aeronautics provide specific technical properties to the surfaces.  They can protect against oxidation, correction and wear, and also can improve friction properties and surface condition. Paint can be organic or inorganic. They can be used as part of a coating process (primary + finishing coatings) and are mostly applied by using a spray gun. In aeronautics, the painting and varnishing process is considered as a special process and its conditions are strictly monitored and controlled all along the painting process, from the paint mix preparation to the final inspection of the part.

The process is based on the application of paint onto a surface (the subjectile), which, after drying, will become a film of a particular thickness with specific visual, protective, and functional qualities.

The different steps are as follows:

  • Preparation of the part surface to be painted: cleaning, chemical or mechanic preparation, if necessary, and masking of areas not to be painted
  • Paint preparation: mixing, preparation inspection (mix homogeneity, viscosity)
  • Paint application: spraying with gun, monitoring of temperature and humidity spraying conditions
  • Curing: according to a temperature cycle, as defined by the paint manufacturer
  • Paint inspection: visual inspection of paint aspect, inspection of applied thickness and of paint adhesion, grid adhesion test.

Our equipment

TMH-novatec, a recognized aeronautics specialist, controls the whole of its painting process: design and manufacturing of specific masking tools, chemical or mechanical surface preparation, painting and curing. The parts we paint range from turbine blades, using anti-corrosion painting processes, to transmission housings, which require complex masking plans. TMH-novatec has a long experience in paint application on aircraft and helicopter engine and turbine parts and ensures a high degree of traceability for the operations it performs: for each part, recording of surface preparation conditions, recording of mix preparation characteristics, application conditions (temperature and humidity), curing cycles (date, temperature curve) and paint inspection (aspect, adhesion, thickness). We carry out painting operations for the aeronautics industry both on new parts before production line assembly, and on repair parts during aircraft and helicopter maintenance servicing operations. We have in-house :

  • 2 sandblasting machines for mechanical surface preparation by corundum sanding
  • Alkaline degreasing bath for surface chemical preparation
  • Masking workstations and associated equipment: customized masking tools and manual masking
  • 2 paint booths including one temperature and humidity-controlled booth. Dimension capacity: part of up to one meter in both diameter and height
  • 4 ovens with programmable curing cycles and cycle data recording. Oven capacity: 1 cubic meter
  • Inspection equipment: eddy current measuring instruments for measuring thickness, adhesion test, grid adhesion test combs in accordance with ISO 2409 standard, roughometer, etc.

Our qualifications

TMH-novatec has been qualified for the following specifications :

  • Pr-1600 for Safran
  • PAQ58C336 for Safran Power Units
  • CCT_06010, CCT_00618, CCT_00598, CCT_0568, CCT_0569, RTC 70-40-26-380-801/802, RTC 70-44-16-380-802 for Safran Aircraft Engines
  • MSRR9276, RPS 661/10, MSRR9188, RPS 661/16 for Safran Aero Booster
painting on aircraft and helicopter engines parts

A question regarding our painting capability ?

Contact our team !

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