# **How to Choose SEMPERFLI CLASSIC WAXED THREAD 12/0 – Fly Tying 70 Denier – 37 Colors Available!**
As an avid fly tyer, selecting the right thread is crucial for creating durable and visually appealing flies. One of the most trusted options in the market is the **SEMPERFLI CLASSIC WAXED THREAD 12/0**, a high-quality fly tying thread designed for precision and strength. With **70 denier thickness** and **37 vibrant colors** available, this thread is a favorite among both beginners and seasoned anglers.
In this guide, we’ll explore why this thread stands out, how to choose the right color and thickness for your needs, and tips for getting the most out of it in your fly tying projects.
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## **Why Choose SEMPERFLI CLASSIC WAXED THREAD 12/0?**
### **1. Superior Strength & Durability**
The **70-denier** construction provides an excellent balance between strength and fineness, making it ideal for tying small to medium-sized flies. The waxed coating enhances durability, preventing breakage while ensuring smooth wraps around the hook.
### **2. Precision & Control**
The **12/0** designation means this thread is ultra-thin yet strong, allowing for tight wraps without bulk. This is especially important for delicate patterns like midges, nymphs, and dry flies where excess thread can affect buoyancy and presentation.
### **3. Extensive Color Selection (37 Options!)**
Matching thread color to your fly pattern enhances realism and aesthetics. SEMPERFLI offers **37 colors**, from natural shades (olive, brown, black) to bright hues (red, orange, fluorescent) for attractor patterns.
### **4. Waxed for Better Handling**
The wax coating reduces fraying, improves knot strength, and helps secure materials like dubbing and hackle more effectively. This makes the thread easier to work with, especially for intricate patterns.
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## **How to Select the Right SEMPERFLI Thread for Your Needs**
### **1. Consider Fly Size & Type**
– **Small flies (midges, tiny nymphs):** The **12/0 (70D)** is perfect for delicate wraps without adding bulk.
– **Medium flies (mayflies, caddis):** Provides enough strength for secure tying while maintaining a clean profile.
– **Larger flies (streamers, bass bugs):** While 70D works, you may want a heavier thread (like 140D) for extra durability.
### **2. Choose the Right Color**
– **Natural Imitations:** Black, olive, brown, and tan blend well with realistic patterns.
– **Attractor Flies:** Bright red, orange, or fluorescent colors increase visibility.
– **Neutral Options:** White or gray are versatile for various patterns.
### **3. Waxed vs. Unwaxed Thread**
The waxed version offers better grip and durability, but if you prefer a smoother finish (e.g., for delicate dry flies), you might consider unwaxed alternatives.
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## **Tips for Using SEMPERFLI CLASSIC WAXED THREAD Effectively**
✔ **Maintain Consistent Tension** – Avoid over-tightening, which can cut materials or weaken the thread.
✔ **Use a Bobbin with Ceramic Tube** – Prevents fraying and ensures smooth thread flow.
✔ **Store Properly** – Keep threads in a dry, cool place to maintain wax integrity.
✔ **Experiment with Colors** – Mixing thread colors can create unique effects (e.g., contrasting underbodies).
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## **Final Thoughts**
The **SEMPERFLI CLASSIC WAXED THREAD 12/0 (70D)** is a top-tier choice for fly tyers who demand **strength, precision, and versatility**. With **37 colors**, you’ll always find the perfect match for your patterns. Whether you’re tying tiny midges or robust nymphs, this thread delivers **reliable performance** every time.
For anglers looking to elevate their fly tying game, adding a few spools of SEMPERFLI’s waxed thread to your toolkit is a smart investment. **Tight lines and happy tying!**
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