ED019587 - Lincolnweld 781 SAW Flux 50lb

Lincolnweld 781: The Solution for Fast, Clean Welds

When your production line demands speed, the Lincoln Electric Lincolnweld 781 Submerged Arc Flux delivers. Sold in a 50 lb bag, this flux is the secret weapon for welders and fabricators working with sheet steel and clean plate who need to maintain high travel speeds without sacrificing quality. If you have struggled with undercut or inconsistent bead shapes when cranking up the speed on your sub-arc equipment, the 781 flux is the solution you have been looking for.

Eliminate Undercut and Voids

Speed is money in manufacturing, but not if it causes defects. The Lincolnweld 781 is formulated with "fast follow" properties. This means the flux covers and supports the molten weld pool effectively, even as the torch moves rapidly across the joint. This unique characteristic prevents the common issue of undercut—where the weld edges fail to fill properly—and eliminates voids that can weaken the joint. You get a solid, professional-looking weld in less time.

Best Uses and Applications

This flux is designed for limited pass welding. It shines in applications where you are laying down one or two passes on thinner materials. It offers exceptional wetting action, meaning the weld puddle spreads out smoothly and adheres perfectly to the toes of the weld. It is highly recommended for:

• High-speed automotive component welding
• General sheet metal fabrication
• Manufacturing of light structural beams
• Any application requiring uniform welds on clean steel

Why Choose Lincoln Electric Flux?

Lincoln Electric is a global leader in arc welding products, and their submerged arc consumables are the industry standard for a reason. The Lincolnweld 781 (Trade Name) is manufactured to strict standards (EN ISO 14174 – S A ZS 1) to ensure every bag performs identically. By choosing Lincolnweld, you are investing in consistency, reducing downtime caused by variable consumable quality, and ensuring your finished products meet the highest standards of durability and aesthetics.