Free shipping on orders overFree shipping over $250 Lower 48 states and DC. Excludes freight and oversize.

Rubyfluid Paste Flux, 2 Ounce, Bulk - FORNEY INDUSTRIES

Part #: 38125

The FORNEY INDUSTRIES 38125 Rubyfluid Paste Flux is a professional-grade soldering and tinning flux engineered for reliable and consistent joint formation in demanding automotive and industrial applications. This 2-ounce bulk paste ensures efficient solder flow, enabling technicians to achieve strong, neat, and durable connections across a variety of metals. Its petroleum-based formula adheres quickly and stays precisely where applied, optimizing efficiency for critical professional work.

Key Features

  • Optimized Solder Flow: Facilitates smooth solder flow in a thin film, contributing to strong and aesthetically pleasing joints.
  • Superior Adhesion: Engineered to adhere quickly and remain in place, minimizing waste and ensuring precise application in professional environments.
  • Durable Joint Formation: Promotes the creation of robust and lasting soldered connections essential for long-term performance in industrial and automotive systems.
  • Wide Metal Compatibility: Effective on a broad range of common metals, including brass, copper, tin, and various ferrous alloys.
  • Visible Application: Features a distinctive ruby-red color for clear visibility during application, aiding in precise and controlled flux placement.
  • Water-Soluble Residue: Post-solder residues are water-soluble, allowing for straightforward cleanup with hot water, and optionally with a 2% HCl solution for critical applications.

Applications

The FORNEY INDUSTRIES 38125 Rubyfluid Paste Flux is ideal for professional plumbers, mechanics, and industrial workers engaged in soldering and tinning operations. It is commonly utilized for plumbing repairs, general maintenance, and work involving brass, copper, tin, and steel components. This paste flux is particularly beneficial in scenarios requiring strong, reliable joints and precise application, such as automotive component repairs (excluding electrical soldering) or fabrication involving ferrous metals. It is important to note that this paste flux is not recommended for use with aluminum, magnesium, or for high-temperature brazing applications.

We have 20 in stock

$7.59

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
Add to Cart:

This product was added to our catalog on Wednesday 20 May, 2026.

Similar Products

(image for) SOLDERING FLUX PASTE 2 OZ
SOLDERING FLUX PASTE 2 OZ
Firepower 1423-1101
Your Price: $11.67
(image for) Forney Industries Brazing Flux, 1/2 Pound
Forney Industries Brazing Flux, 1/2 Pound
FORNEY INDUSTRIES 37250
Your Price: $9.44
(image for) Flux Brushes, 144-Pack
Flux Brushes, 144-Pack
FORNEY INDUSTRIES 38141
Your Price: $32.14
List Price: $43.99
27% off
(image for) Brazing, Low Fuming Bronze with Flux, 3/32 in x 18 in
Brazing, Low Fuming Bronze with Flux, 3/32 in x 18 in
FORNEY INDUSTRIES 48490
Your Price: $16.62
List Price: $21.99
24% off
(image for) Flux Brushes, 3-Pack
Flux Brushes, 3-Pack
FORNEY INDUSTRIES 60300
Your Price: $3.26
List Price: $3.69
12% off
(image for) Water Soluble Liquid Flux, Rubyfluid, 2 Ounce
Water Soluble Liquid Flux, Rubyfluid, 2 Ounce
FORNEY INDUSTRIES 60301
Your Price: $9.13
(image for) Water Soluble Paste Flux, Rubyfluid, 2 Ounce
Water Soluble Paste Flux, Rubyfluid, 2 Ounce
FORNEY INDUSTRIES 60303
Your Price: $7.59
(image for) Solder, General Purpose Repair, Acid Core, 1/16 in, .75 Ounc
Solder, General Purpose Repair, Acid Core, 1/16 in, .75 Ounc
FORNEY INDUSTRIES 61402
Your Price: $9.56
(image for) Solder, Electrical Repair, Rosin Core, 1/16 in, .75 Ounce
Solder, Electrical Repair, Rosin Core, 1/16 in, .75 Ounce
FORNEY INDUSTRIES 61419
Your Price: $9.56
(image for) Solder, Electrical Repair, Rosin Core, 1/32 in, 4 Ounce
Solder, Electrical Repair, Rosin Core, 1/32 in, 4 Ounce
FORNEY INDUSTRIES 61426
Your Price: $18.44
List Price: $20.99
12% off
(image for) Solder, Electrical Repair, Rosin Core, 1/20 in, .3 Ounce
Solder, Electrical Repair, Rosin Core, 1/20 in, .3 Ounce
FORNEY INDUSTRIES 61429
Your Price: $8.95
(image for) Solder, Electrical Repair, Rosin Core, 1/16 in, 4 Ounce
Solder, Electrical Repair, Rosin Core, 1/16 in, 4 Ounce
FORNEY INDUSTRIES 61534
Your Price: $15.16
List Price: $17.49
13% off