Powder Coating in Photopolymer Resin 3D Printing, Stereolithography, Vat Photopolymerization, and Polymer Additive Manufacturing


Powder coating is a finishing process widely used in various manufacturing sectors, including additive manufacturing (AM). In the context of photopolymer resin 3D printing, stereolithography (SLA), vat photopolymerization, and polymer additive manufacturing, powder coating can play a significant role in improving the surface quality and functional properties of printed parts. This report provides a detailed analysis of selected sources that can contribute valuable insights into the importance of powder coating in these AM processes.

Source Analysis

Technical Coatings for Additive Manufacturing Show Promising Results

  • Relevance: This source discusses the advancements in technical coatings, which include powder coatings, for additively manufactured parts. It highlights the collaboration between Sirris and the Fraunhofer Institute for Applied Polymer Research (IAP) to optimize surfaces of AM parts.
  • Reliability: Additive Manufacturing Media is a reputable publication in the AM industry, providing insights from industry experts and researchers. The collaboration between Sirris and Fraunhofer IAP adds credibility to the findings.
  • Significance: The source is significant as it addresses the challenges of surface roughness and porosity in AM parts, which powder coating can mitigate. It also emphasizes the growing demands on surface quality in the transition from prototyping to industrial production.

A Conversation on Finishing’s Role in Additive Manufacturing

  • Relevance: This source provides a comprehensive discussion on the role of finishing techniques, including powder coating, in the AM process. It explores how conventional finishing methods can enhance the properties of 3D printed parts.
  • Reliability: The conversation includes insights from industry professionals and experts in the field of AM, ensuring a reliable perspective on finishing techniques.
  • Significance: The source is significant for understanding how powder coating fits into the broader context of finishing processes for AM parts and how it can contribute to the final product’s functionality and aesthetics.

Vat Photopolymerization of Ceramics with Dissolvable Supports

  • Relevance: Although this source primarily discusses vat photopolymerization for ceramics, it provides valuable information on the importance of surface finish and post-processing in AM, which is directly related to powder coating applications.
  • Reliability: ScienceDirect is a leading platform for peer-reviewed literature, and the article is authored by researchers in the field, ensuring the reliability of the content.
  • Significance: The source is significant as it touches upon the challenges of achieving a high-quality surface finish in AM, which powder coating can address. It also provides insights into the post-processing steps that are crucial for the final part quality.

Additive Manufacturing of Electrically Conductive Polymer Composites

  • Relevance: This source explores the additive manufacturing of functional materials, including the use of coatings to achieve electrical conductivity. Powder coating can be a method to apply such functional coatings.
  • Reliability: Published in a reputable journal, this article provides a scientific perspective on the use of coatings in AM, backed by research data.
  • Significance: The source is significant for understanding how powder coating can be used to not only improve surface finish but also to impart functional properties to 3D printed parts.

Photopolymer Week 2023: Insights from RadTech and PAMA

  • Relevance: This source provides insights into the latest developments in photopolymer materials and printing technologies. It discusses the potential of high-viscosity resin printers, which could influence the need for surface finishing techniques like powder coating.
  • Reliability: 3D Printing Industry is a well-known publication in the field, and the insights come from industry events featuring experts from RadTech and PAMA.
  • Significance: The source is significant as it highlights the evolving nature of photopolymer resins and their applications, which may affect the role of powder coating in the finishing process.

Progress and Opportunities in Additive Manufacturing of Electrically Conductive Polymer Composites

  • Relevance: This source is relevant as it discusses the integration of functional properties into AM parts, which can be achieved through coatings, including powder coatings.
  • Reliability: The article is published in a peer-reviewed journal, ensuring the quality and reliability of the information presented.
  • Significance: The significance of this source lies in its focus on the advancement of materials in AM, which includes the development of coatings that can enhance the electrical properties of printed parts.

Vat Photopolymerization Based Additive Manufacturing Technologies

  • Relevance: This manuscript reviews vat photopolymerization technologies, including SLA, DLP, and CDLP, and discusses the after-cured mechanical properties of materials, which can be influenced by powder coating.
  • Reliability: PubMed Central is a free archive of biomedical and life sciences journal literature, making it a reliable source for scientific information.
  • Significance: The source is significant for its in-depth review of vat photopolymerization technologies and the impact of post-processing on mechanical properties, which is relevant to the application of powder coating.


The sources provided offer a comprehensive view of the role of powder coating in photopolymer resin 3D printing, stereolithography, vat photopolymerization, and polymer additive manufacturing. They cover a range of topics from surface finish improvements to the addition of functional properties through coatings. Each source contributes valuable insights into the current state and future potential of powder coating in enhancing the quality and functionality of 3D printed parts. Researchers and industry professionals can rely on these sources for a well-rounded understanding of the significance of powder coating in the additive manufacturing landscape.