How to Choose the Right Soap Extruder Disc Size
If you're new to soap extruding, one of the first questions you'll ask is: which disc size should I choose? At Extruder Designs, our discs come in four sizes — 18mm, 23mm, 24mm, and 55mm — and each one suits a different purpose. Here's a simple guide to help you pick the right size for your soap making project.
Understanding the Sizes
18mm — Small & Detailed
The 18mm disc is perfect for making small, detailed soaps. It's ideal for:
- Guest soaps and sample sizes
- Adding decorative details to larger soaps
- Kids' party favour soaps
- Soap making beginners who want to start small
23mm & 24mm — The Sweet Spot
These two sizes are our most popular and for good reason — they're the perfect all-rounder. Great for:
- Standard bar soaps
- Gift set soaps
- Most hobby soap making projects
- Loaf soap designs
The difference between 23mm and 24mm is minimal, so if you're unsure, either will work beautifully for most projects.
55mm — Go Big!
The 55mm disc creates a bold, statement soap that really shows off the design. Perfect for:
- Showcase soaps and display pieces
- Large gift soaps
- When you really want the design to stand out
- Experienced soap makers looking for impact
Which Size Should You Start With?
If you're just getting started, we recommend the 23mm or 24mm size — it's versatile, works with most standard soap moulds, and gives you a great result every time. Once you're comfortable, try the 55mm for a real wow factor!
Tips for Getting the Best Results
- Make sure your soap base is the right consistency before extruding — not too firm, not too soft
- PLA discs work best at room temperature
- Clean your discs gently with warm water after each use
- Store discs flat to keep their shape
Ready to Get Started?
Browse our full range of soap extruder disc sets — from construction vehicles to seasonal designs — and find the perfect set for your next soap making project. Each set is precision 3D printed in PLA and compatible with standard soap extruder guns.
Happy soaping! 🧼