Tiger's Eye Gel Flux is a high-performance, non-smoking flux formulated for stained glass soldering. Its smooth gel consistency allows for precise application and reduced spattering, making it ideal for both beginners and professionals. Designed to promote excellent solder flow on copper foil and lead came, this 8 oz. bottle is a studio essential for clean, strong solder joints. Easy to use, water-soluble, and compatible with most patinas.