{"id":8133,"date":"2026-10-08T16:42:00","date_gmt":"2026-10-08T20:42:00","guid":{"rendered":"https:\/\/abcorp.com\/?post_type=3d-insights&p=8133"},"modified":"2026-10-08T09:06:43","modified_gmt":"2026-10-08T13:06:43","slug":"finitions-de-limpression-3d","status":"publish","type":"3d-insights","link":"https:\/\/abcorp.com\/fr\/3d-insights\/3d-printing-finishes\/","title":{"rendered":"Tout savoir sur les finitions de l'impression 3D"},"content":{"rendered":"
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A previous version of this blog post was published on October 25, 2003.<\/em><\/p>\n

Finishing is where an HP Multi Jet Fusion (MJF) part becomes a production part. The right choice of finish depends on the material, how the part is used, and what it should look like in the field. This post covers the four MJF finishes that ABCorp 3D offers, which materials each one supports, and how to choose between them.<\/span><\/p>\n

Why MJF finishing decisions matter in production<\/h3>\n

Production-scale additive manufacturing requires capacity et<\/em> consistency. This applies as much to the finish as it does the print.<\/p>\n

Post-processing finishes comprise a larger share of the total per-part cost than teams might expect. A survey in the 2019 Wohlers Report found that pre- and post-processing accounted for nearly 40% of the cost of an additive manufactured part (Additive Manufacturing Media<\/a>). This underscores the importance of discussing finish options early in the design and production process so the cost can be budgeted accordingly.<\/p>\n

Finish affects function as a sealed surface behaves differently in a wet environment than an as-printed one, for example. A smoothed surface is easier to clean, handle, and inspect, and a uniform color can hide slight printing variations.\u00a0<\/p>\n

The four MJF finishes ABCorp 3D offers<\/h3>\n

ABCorp 3D offers four industrial, automated finishes for MJF polymer parts including standard matte, dyed black, AMT vapor smoothed, and AMT vapor smoothed with black dye.<\/p>\n

1. Standard matte MJF finish<\/h4>\n

This is the part as it comes off the HP Multi Jet Fusion line after depowdering and cleaning. It’s a matte grey color with a fine, even texture that is the fastest and most cost-effective finish because there are no additional steps.<\/p>\n

Standard finish is the right call for internal components, jigs and fixtures, functional prototypes, and any part where cosmetics don’t matter. It’s also the only finish available for HP 3D High Reusability PP.<\/p>\n

2. Dyed black<\/h4>\n

Dyeing gives MJF parts a consistent, uniform matte black finish without changing the surface texture. As-printed grey can vary slightly from build to build, and a deep black dye evens that out so parts match across an order and across reorders.<\/p>\n

Dyeing is a staple finish for MJF parts, but manual dyeing can be messy and hard to repeat. ABCorp 3D dyes parts on a Girbau DY130 automated industrial dyeing system, which replaces that variability with a controlled, repeatable process. Dyed black works well for visible enclosures, housings, and assemblies where parts need to look the same.<\/p>\n

3. AMT vapor smoothed<\/h4>\n

Vapor smoothing exposes parts to a controlled chemical vapor that melts and reflows the outer surface. Texture from the printing process flattens out and surface pores close. ABCorp 3D runs this process on an AMT PostPro3D system.<\/p>\n

The result is a sealed surface that resists water absorption, is easier to clean, and resists bacterial buildup. That makes smoothing a strong fit for medical devices, fluid-handling parts, and anything handled often. Smoothing also brings out color, so full-color parts come out sharper and more vibrant.<\/p>\n

4. AMT vapor smoothed with black dye<\/h4>\n

This finish combines both processes. Parts are dyed black and vapor smoothed for the most refined finish ABCorp 3D offers: a sealed, uniform, deep black surface with the same cleanability and moisture resistance as standard smoothing.<\/p>\n

Choose it for customer-facing products, premium housings, and end-use parts where appearance and function both matter.<\/p>\n

MJF finish and material compatibility<\/h3>\n

The availability of finish options depends on the underlying material, so we created this table as a starting point to help guide decision making. Our team of 3D printing experts can provide additional information based on your project requirements.\u00a0<\/p>\n

<\/p>\n\n\n\n\n\n\n\n\n
Mat\u00e9riau<\/th>\nBest for<\/th>\nStandard matte<\/th>\nDyed black<\/th>\nAMT smoothed<\/th>\nAMT smoothed + black<\/th>\n<\/tr>\n<\/thead>\n
HP 3D HR PA 12<\/td>\nStrong, functional, detailed parts at the lowest cost<\/td>\nYes<\/td>\nYes<\/td>\nYes<\/td>\nYes<\/td>\n<\/tr>\n
HP 3D HR CB PA 12 (full color)<\/td>\nFull-color and color-coded parts<\/td>\nYes<\/td>\nYes<\/td>\nYes<\/td>\nYes<\/td>\n<\/tr>\n
BASF Ultrasint TPU01<\/td>\nShock absorption, energy return, and flexibility<\/td>\nYes<\/td>\nYes<\/td>\nYes<\/td>\nYes<\/td>\n<\/tr>\n
HP 3D HR PP<\/td>\nChemical resistance, weldability, and low moisture absorption<\/td>\nYes<\/td>\nNo<\/td>\nNo<\/td>\nNo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n