# **How to Choose 20 Ml Fly Tying UV Resin / UV Pen: Thick & Light & Flexible, FREE BATTERIES**
Fly tying is an art that requires precision, durability, and the right materials. Among the essential tools for fly tyers, **UV resin** stands out for its versatility and ease of use. Whether you’re crafting delicate dry flies or sturdy streamers, choosing the right **20 ml UV resin or UV pen** can make a significant difference in your fly’s performance.
In this guide, we’ll explore the key factors to consider when selecting a **UV resin for fly tying**, including viscosity, flexibility, curing speed, and additional benefits like **free batteries**.
## **1. Understanding UV Resin for Fly Tying**
UV resin is a liquid adhesive that hardens when exposed to ultraviolet light. It’s widely used in fly tying to:
– **Seal thread wraps** for durability
– **Create smooth, glossy heads** on flies
– **Build bodies** on nymphs and streamers
– **Repair damaged flies** quickly
A **20 ml UV resin** is an ideal size—large enough for frequent use but still portable. Meanwhile, a **UV pen** offers precision application for small flies.
## **2. Key Features to Look for in UV Resin**
### **A. Thick vs. Thin Viscosity**
– **Thick UV Resin**: Best for **building up bodies** on nymphs and streamers. It holds its shape before curing, preventing drips.
– **Light (Thin) UV Resin**: Ideal for **coating delicate dry flies** or creating a smooth finish without adding bulk.
**KyleBooker’s UV Resin** offers both **thick and light formulas**, ensuring you have the right consistency for any fly pattern.
### **B. Flexibility After Curing**
A rigid resin can crack when flies hit rocks or fish teeth. **Flexible UV resin** ensures your flies last longer. Look for resins labeled as **”tough yet bendable”** to maintain durability without brittleness.
### **C. Fast & Reliable Curing**
A strong **UV light source** is crucial for quick curing. Some resins require **high-intensity UV lamps**, while others work with **small LED pens**.
**Bonus:** KyleBooker’s UV resin comes with **FREE BATTERIES** for UV pens, ensuring you never run out of power mid-tying session.
### **D. Clarity & Gloss Finish**
A high-quality UV resin should dry **crystal clear** without yellowing over time. This ensures your flies maintain a natural, lifelike appearance.
## **3. UV Pen vs. Bottle: Which is Better?**
– **UV Pen**: Great for **precision work** (small flies, touch-ups). Portable and easy to control.
– **Bottle (20 ml)**: More economical for **larger applications** (streamers, saltwater flies).
**Pro Tip:** Keep both in your tying kit—use the pen for detail work and the bottle for bulk applications.
## **4. Why Choose KyleBooker’s UV Resin?**
– **Multiple viscosities** (thick & light) for all fly types
– **Flexible yet durable** finish
– **Fast-curing** with included **UV light & FREE BATTERIES**
– **Crystal-clear** gloss that resists yellowing
## **Final Thoughts**
Choosing the right **20 ml UV resin or UV pen** depends on your fly-tying needs. Whether you need a **thick formula for streamers** or a **light, flexible resin for dry flies**, KyleBooker offers high-quality options with the convenience of **free batteries** for uninterrupted tying.
Upgrade your fly-tying toolkit today and experience the difference a professional-grade UV resin can make!
**Tight lines and happy tying!** 🎣
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