A 3 Minute Summary of Gemini’s Injection Molded Plastic Letters

Injection Molded Plastic In A Bite Size Read

Our injection molded plastic letters are a defined selection of standard letters commonly used in wayfinding and architectural signage. Unique from formed plastic letters, injection molded plastic letters are strikingly simple in effectively communicating your message without added features.  

injection molded letter manufacturing

What Are Injection Molded Plastic Letters? And How Are They Made?

Injection molded plastic letters are created by injecting molten plastic into a dimensional mold to form letters. These plastic letters are lightweight and durable. With crisp edges and defined depth, injection molded plastic letters establish a sense of importance. Our injection molded letters are completely recyclable, UV-stable, and durable to withstand harsh environments. These letters offer a limited selection of standard fonts but offer the look of cast metal without the price point. Are you looking to bring a more elaborate sign to life with custom fonts or add lighting? Our formed plastic product line will be better suited for your needs. 

Where Can I Install Them?

For indoor or outdoor applications, injection molded plastic letters are primarily manufactured for architectural purposes, such as address letters, house numbers, and building signage. Storefronts and educational institutions may also order injection molded plastic to extend their brand image. These mighty plastic letters are blemish-free and provide clean edges. 

injection molded sign
injection molded letter manufacturing
injection molded sign

What Are The Design Capabilities?

Injection molded plastic letters offer an extensive selection of paint colors. These plastic letters are produced quickly and have a fast turnaround time. 

Dimension specifications

Minimum and Maximum Heights 

  • 2 inches up to 18 inches 


  • 3/8 inch up to 1 1/2 inches  


  • For injection molded plastic, our customers have a selection of three fonts. Custom fonts are not available in injection molded plastic letters.  
    • Fonts 
      • Architectural in a prismatic face 
      • Helvetica in a flat face 
      • Times Bold in a flat face   
injection molded sign
injection molded sign

Paint Colors

  • We have a large selection of paint colors and offer custom painting. Our paint is automotive quality, promoting durability for the longevity of your signage.  

For custom paint colors, send in your paint name or number and brand of paint, and we will obtain a mixing formula at no cost to you. If you do not have a paint name or number and want a color match, we will need at least a 3-inch by 3-inch sample. Our paint lab will run an exact color match process for a fee. 


  • Install our injection molded plastic products on even or corrugated surfaces indoors or out. We provide standard mountings and installation patterns with your order. 

Injection molded plastic letters can provide a simple, straightforward selection for customers looking for basic letter signs with depth. While our product line for injection molded plastic is limited, the impact and quality of injection molded plastic letters are unsurpassed.  


Become a partner today to learn more about injection molded plastic letters on our Partner Portal, receive an instant quote from TrueQuote, or discover more helpful resources for product information, mounting, and installation inour Resource Library. 


Gemini is a wholesale manufacturer of solutions that identify, direct, and protect the world. For over 55 years, Gemini has been an industry leader producing made-to-order dimensional signage, plates, plaques, cast bronze memorials, industrial protective cases, and plastic parts. Gemini is a second-generation family-owned business headquartered in Cannon Falls, Minnesota, with production facilities throughout North America. For more information, visit geminimade.com. 

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