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GF-53 - Gasflux Type W Liquid Brazing Flux - 1 Gallon

Packaging: 1 per each
$3,119.74/ea $2,228.39/1 per each only $2,228.39/eaSave 29%

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OVERVIEW

See the Puddle, Not the Paste

If you do a lot of brazing, you know the struggle of fighting with thick paste flux. It bubbles up, hides your joint, and leaves a rock-hard mess that takes forever to chip or scrub off. The Gasflux GF-53 Type "W" Liquid Flux changes the game completely. This 1-gallon refill is designed for your Gasfluxer unit, a system that bubbles your fuel gas through the liquid flux before it reaches your torch. The result? Your flame is the flux. As you heat the metal, the flame deposits a perfectly controlled amount of flux exactly where you need it, keeping the metal bright and clean without the goop.

Type "W" is the universal "workhorse" formula that covers almost everything you are likely to braze in the shop. Whether you are joining mild steel tubing, repairing cast iron, or working with stainless and brass, this flux helps your bronze or silver filler metal flow like water. The wetting action is incredible—the solder just zips into the joint. Because the flux is transparent and applied thinly by the flame, you maintain perfect visibility of the weld puddle at all times. This control leads to fewer rejects and better-looking beads.

One of the biggest benefits for the welder is the cleanup—or the lack thereof. The residue left by Type "W" is minimal and often washes off easily with warm water, or simply doesn't need removal at all if the part is being painted. It works with whatever fuel gas you are running, be it acetylene or propane. Upgrade your brazing process with the GF-53 and stop wasting time scrubbing off burnt paste.

Additional Information
Packaging Description:1 gallon
Format:Liquid
Brand:Gasflux
Fuel Gas:Acetylene, Propane, Natural Gas, Propylene
Flux Type:Type W, Liquid Gas Flux
Compatible Metals:Copper, Brass, Steel, Stainless Steel, Cast Iron, Carbide
Application Method:Vapor introduction via fuel gas
Volume:1 Gallon

INCLUDED

  • 1 Gallon of Type "W" Liquid Gas Flux
  • Container with safety seal

APPLICATIONS

  • Automotive Manufacturing: Brazing fuel rails, chassis components, and tubing.
  • HVAC/R: Joining copper and brass fittings in refrigeration cycles.
  • Tooling: Brazing carbide tips onto steel shanks for cutting tools.
  • Furniture: Clean joints on tubular steel furniture requiring minimal finishing.
  • General Fabrication: Repair and assembly of mixed metal components including stainless and cast iron.

FAQ

This flux is not applied directly to the part like a paste. It must be poured into a 'Gasfluxer' unit. The fuel gas passes through the unit, picks up the flux as a vapor, and delivers it through the torch flame.

Type W is formulated for copper, brass, steel, stainless steel, cast iron, and carbide. It is a universal flux for most ferrous and non-ferrous high-temperature brazing applications.

Yes, Gasflux Type W is compatible with all standard fuel gases, including acetylene, propane, propylene, and natural gas.

For many tight-fit joints, the liquid flux in the flame is sufficient. However, for deep penetration or when the flame cannot reach the inside of a joint (like a socket), a small amount of paste flux may still be required on the mating surfaces.

No, unlike borax paste which leaves a hard, glass-like crust, the residue from Type W liquid flux is very thin and easily removed, often just with warm water or wire brushing.

When stored in a sealed container in a cool, dry place, the liquid flux has an indefinite shelf life. Ensure the cap is tight to prevent evaporation of the solvent carrier.

No, Type W is not suitable for aluminum. Aluminum requires specific fluxes and lower temperature ranges than what this flux is designed for.