DIY Exposure Box for Screen Printing
If you’re diving into the world of screen printing, one of the most essential tools you’ll need is an exposure box—a device that helps you transfer your design onto a screen using UV light. But did you know you can build one yourself at home for a fraction of the cost of a commercial unit? In this blog, we’ll walk you step-by-step through how to build a DIY exposure box for screen printing.
🎨 How to make a DIY Exposure Box for Screen Printing
If you’re diving into the world of screen printing, one of the most essential tools you’ll need is an exposure box—a device that helps you transfer your design onto a screen using UV light. But did you know you can build one yourself at home for a fraction of the cost of a commercial unit? In this blog, we’ll walk you step-by-step through how to build a DIY exposure box for screen printing, plus share some screen printing apparel and accessory recommendations from BulkApparel—your go-to source for bulk apparel, shirts wholesale, hoodies wholesale, shirts in bulk, and wholesale blank apparel.
🛠️ What Is an Exposure Box and Why Do You Need One?
A screen printing exposure box is used to harden photo emulsion on a screen when it’s exposed to UV light. This process creates a stencil of your design, which you’ll later use to print on garments like blank t-shirts or blank hoodies. If you’re starting your screen printing journey or looking to expand your setup without breaking the bank, building your own exposure unit is a smart and cost-effective solution.
📦 Materials Needed for DIY Exposure Box for Screen Printing
To build your own DIY exposure box for screen printing, you don’t need fancy tools or hard-to-find materials. Here’s what you’ll need:
- UV light source (LED UV strip lights or a 500W halogen work light)
- Clear glass or acrylic sheet (¼ inch thick is ideal)
- Wood for the frame (2x4s or plywood)
- Black paint or black cloth lining
- Foam pad or rubber mat
- Hinges and screws
- Timer or stopwatch
- Basic tools: drill, screwdriver, saw, measuring tape
🏗️ Step-by-Step Guide: How to Build a DIY Exposure Box for Screen Printing
Step 1: Build the Box Frame
Start by constructing a shallow rectangular box using wood. The dimensions should be large enough to comfortably hold your screen frame and your transparency film. If you plan to work with larger screens in the future, it’s a good idea to build a slightly oversized box.
Step 2: Install the Light Source
Your exposure box needs a consistent UV light source. You can use UV LED strip lights mounted underneath the top panel or inside the base, or opt for a 500-watt halogen work light if you’re working on a budget. Just ensure the light is evenly distributed.
Step 3: Add a Glass or Acrylic Top
Secure a clear glass or acrylic sheet to the top of your box. This is where your screen and transparency film will sit during exposure. The weight of the glass also helps press everything flat, ensuring sharp design edges.
Step 4: Line the Interior
To prevent light from bouncing and creating blurry edges, line the inside of your box with matte black paint or black cloth. This absorbs stray light and improves the overall exposure quality.
Step 5: Add a Foam Cushion
Place a foam pad or rubber mat under your screen to help keep the screen flush against the glass. This prevents light leaks and ensures an even burn across your emulsion.
Step 6: Time It Right
Depending on your emulsion type and light strength, exposure time typically ranges from 8–15 minutes. Always run a few tests to dial in the right time for your setup. A basic kitchen timer or phone stopwatch will work just fine for timing exposures.
Step 7: Optional Add-ons
You can also add a hinged lid, ventilation holes, or even a cooling fan if you’re using a high-heat light source.
Here’s a great video from Lost Light Art on building a DIY UV exposure box.
👕 Recommended Wholesale Apparel for Screen Printing
Once your exposure box is ready, you’ll need high-quality wholesale blank apparel to bring your designs to life. That’s where BulkApparel.com comes in. Whether you’re printing for a clothing brand, events, or just experimenting, Bulk Apparel wholesaler offers affordable, top-quality wholesale bulk apparel options.
Top Picks for Screen Printing Apparel:
1. Gildan G500 Heavy Cotton T-Shirt
A staple in the screen printing world, the Gildan G500 offers durability and a smooth print surface. Ideal for beginners buying shirts in bulk, these basic tees are affordable, comfortable, and come in dozens of colors.
2. Bella+Canvas 3001CVC Unisex Jersey Tee
For a more premium feel, the Bella+Canvas 3001CVC is ultra-soft, tightly woven, and offers a smooth surface for detailed prints. This is a favorite among print shops looking to upgrade their wholesale blank apparel.
3. Gildan G185 Heavy Blend Hoodie
Wholesale hoodies are a top seller in streetwear and casual fashion. The Gildan G185 prints beautifully and is a reliable choice when ordering hoodies wholesale for custom designs.
4. Next Level 6210 CVC Crew Tee
The cotton/poly blend makes this CVC shirt super soft while still retaining excellent printability. Great for those seeking stylish, higher-end shirts wholesale.
🧰 Screen Printing Accessories You’ll Need
Your DIY exposure box is just the beginning. You’ll also want to stock up on key screen printing tools and accessories.
- Aluminum or wooden screen frames
- Photo emulsion & emulsion remover kits
- Squeegees and scoop coaters
- Heat gun or flash dryer for curing prints
- Screen degreaser and cleaning solution
- Plastisol or water-based inks
These tools pair perfectly with bulk apparel orders and allow you to create a professional-level setup right at home.
💡 Why Buy Shirts in Bulk from BulkApparel.com?
Buying blank apparel in bulk or hoodies in bulk isn’t just about saving money—it’s about consistency and convenience. With BulkApparel, you get:
- Competitive pricing on wholesale blank apparel and accessories
- A massive selection of blank styles, sizes, and colors
- Trusted brands like Gildan, Bella+Canvas, Next Level, and Hanes
- Fast shipping and great customer support
Whether you’re screen printing for resale, custom orders, or building a brand, BulkApparel makes it easy to scale your production with top-quality wholesale activewear.
✂️ Final Thoughts
Building your own DIY exposure box for screen printing is a budget-friendly way to level up your printing game. Paired with the right apparel and tools, you’re well on your way to producing crisp, professional-quality prints.
From crewneck sweatshirts to wholesale hats, investing in the right wholesale blank styles will set your projects apart and make your screen printing journey smoother and more profitable.
Don’t forget to stock up on our March Madness Essentials, perfect for all your screen print designs!
