Article | REF: AM3785 V1

Painting plastics

Authors: Evelyne DARQUE-CERETTI, Bernard MONASSE

Publication date: January 10, 2010

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Overview

Français

ABSTRACT

The use of paints on plastics allows for modifying the aspect, surface state, feel or color of the object and preserving the material from environmental aggressions which may alter its appearance and mechanical properties. Parts in painted plastics present different characteristics from painted metallic parts such as the diffusion of solvents in plastics and the modification of mechanical properties through paint. The main properties of polymers are presented before they are painted they vary according to the shaping of the plastic material (injection). Due to their chemical nature, some of them require surface modification. The nature of the first coat of paint is specific to plastic materials as it ensures the adherence of the paint. The following coats are the same as those applied on metals.

Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.

Read the article

AUTHORS

 INTRODUCTION

The development of plastics offers many advantages that justify their use:

  • low density, a crucial advantage in the automotive and aerospace industries;

  • durability, corrosion resistance and shock resistance;

  • greater freedom of form, highlighted by the design;

  • easy integration of functions ;

  • lower investment costs, facilitating more frequent form renewal.

Designers' requirements and the durability of plastics often call for painted parts, to give them the protection and appearance they need. Painted plastics are often in competition with the same mass-colored plastics, which are generally less expensive but cannot guarantee a durable appearance over time. As a result, they are confined to applications where durability is not an essential factor. Painting plastics gives them an appearance similar to that of painted metal parts, ensuring their integration into complex assemblies with a uniform appearance. Numerous industries apply paint to plastic materials: household appliances, electrical engineering, medical equipment, the toy industry and, above all, the manufacture of pleasure boats, but it is the automotive industry that makes the greatest use of this finishing process, both for the passenger compartment and the bodywork. It's for this reason that the examples chosen to examine the problems of painting plastics come from this industry. We'll also look at the constraints that force us to be extremely vigilant when it comes to choosing and using the plastic/paint combination.

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Formulation

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Painting plastics