Comparative Keychains

Bel Air Finishing’s Surface Comparative Keychain is a hands-on tool designed to help customers select the ideal surface finish for their 3D-printed parts. Each keychain includes a physical set of sample parts—produced using actual additive manufacturing materials and finishing methods—with varying degrees of smoothness, shine, and polish. From basic depowdering to high-gloss polishing, the Comparative Keychain allows engineers, designers, and manufacturing teams to see and feel the results of different post-processing levels, enabling clear communication and confident decision-making for production-scale finishing.

Bel Air 3D steel printed promotional bottle opener.

Promotional Bottle Opener, DMSL-printed Stainless Steel 17-4

Comparative keychain of finish samples for a 3D steel printed promotional bottle opener.

Promotional Bottle Opener, DMSL-printed Stainless Steel 17-4

DCM-printed 3D plastic bowl pins surface comparative keychain.

DCM-printed 3D Bowling Pins

DMSL-printed A1000 aluminum alloy bowling pins comparative keychain sample.

Aluminum Alloy Bowling Pins

Surface comparative keychain of 3D-printed stainless steel bone plates.

Stainless Steel Bone Plate

FFF Printed Onyx plastic bullets degrees of surface finishing samples.

Markforged FFF Onyx printed plastic bullets

Nylon PA-12 comparative keychain, showing degrees of finish

SLS printed Nylon PA-12 3D Bowling Pins

DMSL L-40 Steel Jaw Tooling comparative keychain, showing degrees of surface finishes

DMSL L-40 Steel Rivet Install Jaw Tooling

Surface comparative keychain of Markforged-printed metal bottle opener.

Markforged 3D SS Alloy Bottle Opener

Polycarb-printed 3D plastic transport grippers surface finish samples.

Polycarb 3D Transport Grippers

Varying surface finishes of plastic pins

Color Print Powder Removal & Polishing, Degrees of Finish

PA-1200 3d printed plastic tags

Colored Dyed Display Tags Key Chain

3D Printed Electronic Housings, Post-processed

Electronic Housings feasibility Study of Post Processing

Request a Comparative Keychain

Why?

You know how you want your part to look and feel, but you are unsure of the roughness value to achieve that?

Bel Air has developed the Comparative Key chain to assist our clients
to determine their desired surface finish.