Next Article in Journal
Turkish Endemic Achillea Species Protect Human Neuroblastoma SH-SY5Y Cells Against Hydrogen Peroxide-Induced Cytotoxicity
Previous Article in Journal
Pointing Error Evaluation of the High Spatial Resolution Imaging Camera of BepiColombo Space Mission
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Proceeding Paper

Painting for Aircraft †

Fly Navy 70 moo 2, T. Phala Bangchang, 21130, Rayong, Thailand
*
Authors to whom correspondence should be addressed.
Presented at the Innovation Aviation & Aerospace Industry—International Conference 2020 (IAAI 2020), Chumphon, Thailand, 13–17 January 2020.
Proceedings 2019, 39(1), 21; https://doi.org/10.3390/proceedings2019039021
Published: 9 January 2020

Abstract

:
Objective This research is aimed to reduce time for the aircraft painting processes and decrease the budget for the painting activities which will not affect to the life limit of the painting and will not affect to the aerodynamic of the aircraft. method The research will be conducted by setting up the experiments to study the aircraft surface painting preparation methods, in order to find the better method of aircraft painting study the technical specification of the aircraft coating in associate with the viscosity of painting, air temperature for painting, relative humidity, drying time, lifetime period, hardness and difference, interval of time between painting and mixing solvent quality study the tools that use for painting such as air spray, airless spray, roller and brush study for error checking methods for understanding the painting defects result Reduce the errors that might occur during the aircraft painting processes which will lead to the budget decreasing and time reducing for aircraft painting conclusion To obtain the good quality of painting, it is very important to realize the specification of applied coating, working processes and painting equipment that associate with the maintenance manual of each aircraft, the effect factors that take into account of the painting and the technique of painting that is used.

1. Introduction

Painting is to protect material surface forming dry film from moisture, dielectric, anti-chemical, sound wave, air flow, etc., against corrosion also is good to see appearance. The principal of basic anticorrosion is to cut humidity, air and chemical from the surface. In addition, the process of corrosion occurrence is that the metal is exposed by surrounding, it is reacted to chemical and electrical, finally property can be changed.
Corrosion factors and progress according to environment are as follows (Table 1).

2. Surface Preparation

Surface preparation is the most important to determine a factor of paint life, damaged materials and contaminated things on surfaces should be totally removed and to forming “Profile” (roughness on the surface) to improve adherence for paint workability. The method are chemical (solvent, thinner, etc.) and Mechanical (sandpaper, power tool, etc.) (Figure 1).

3. Wording Explanation of Paint and Coating

There are a lot of painting wording. For example, pot life, SVR (solid volume ratio between wet film and dry film), recoating interval, viscosity, relative humidity, dry film thickness, paint specification, profile, holiday (miss spot on surface) etc. (Figure 2).

4. Method:

4.1. Equipment and Painting Are Used in Royal Thai Navy’s Aircraft

The type of painting method in RTN’s aircraft are brush painting, roller painting, air spray, airless spray. Environment for painting must be considered, defects can occur according temperature, humidity, dew point, wind, vent condition. The specification of painting is guidance for coating (Table 2).
Specification of painting (Do–228) (Figure 3 and Figure 4).

5. Result

Understanding, how to clean up the surface and use suitability tool, decrease time for coating and painting, decrease error occur, save budget, the aircraft look beautiful (Figure 5 and Figure 6).

6. Conclusions

The painting or coating is very important to protect aircraft from corrosion and make she looks beautiful. Depend on right action and suitable specific coating. That can reduce time for the aircraft painting processes and decrease the budget.

Acknowledgments

1. Aircraft rework faculty center royal Thai naval air division. 2. Sahayong Mongkol Ltd. Thailand, Part.
Figure 1. Factor affecting the life time of painting or coating.
Figure 1. Factor affecting the life time of painting or coating.
Proceedings 39 00021 g001
Figure 2. comparison between surface with profile and without profile.
Figure 2. comparison between surface with profile and without profile.
Proceedings 39 00021 g002
Figure 3. Wet film thickness guage.
Figure 3. Wet film thickness guage.
Proceedings 39 00021 g003
Figure 4. Dry film thickness measure.
Figure 4. Dry film thickness measure.
Proceedings 39 00021 g004
Figure 5. RTN painting’s work.
Figure 5. RTN painting’s work.
Proceedings 39 00021 g005
Figure 6. RTN painting’s work.
Figure 6. RTN painting’s work.
Proceedings 39 00021 g006
Table 1. Corrosion factors relate with environment
Table 1. Corrosion factors relate with environment
Corrosion Factors and Progress According to Environment
EnvironmentCorrosion FactorsCorrosion Rate
OffshoreSun energy (UV, temperature), salt particle, salt100
IndustryCorrosion gas (acid gas), density of medicine, temperature, moisture20~30
MountainBetween Dryness and wetness, rain, snow, type of inhabit organism10~20
Table 2. Example of coating specification
Table 2. Example of coating specification
Dope (per DON 788)
Basic components (LCM No.476)1 Volume part
Thinner (LCM No.477)1 Volume part
Processing time5 pprox. 5 h at 23 C
Spray application½ cross-coat
Intermediate drying timeMin. 1 h (after 1st. and 2nd. Layer)Min 1½ h (after 3rd. Layer)
Layers4
Viscosity 4 mm ISO cup (with thinner)4 s at 20+ or −2 C
Viscosity 4 mm DIN cup (without thinner)195+ or −5 s at 20+ or −2 C
Apply 1st. dope layerBasic component with thinner (mixing ratio 1:1 by volume) use a sponge or foam block apply ½ cross-coat, the dope must fully penetrate the polyester fabric
Apply 2nd. Thru 4th. Dope layerOnly basic component without thinner use a sponge or foam block apply 3 ½ cross-coat
Intermediate drying time min. 1 h after the 2nd layer min. ½ h the last min 8 h

Share and Cite

MDPI and ACS Style

Prapan, C.; Sukantarat, C.; Maneephrom, T. Painting for Aircraft. Proceedings 2019, 39, 21. https://doi.org/10.3390/proceedings2019039021

AMA Style

Prapan C, Sukantarat C, Maneephrom T. Painting for Aircraft. Proceedings. 2019; 39(1):21. https://doi.org/10.3390/proceedings2019039021

Chicago/Turabian Style

Prapan, Cherdpong, Chinnawat Sukantarat, and Thanayot Maneephrom. 2019. "Painting for Aircraft" Proceedings 39, no. 1: 21. https://doi.org/10.3390/proceedings2019039021

Article Metrics

Back to TopTop