Fiback®

FIBERGLASS WELDBACKING TAPE

ELIMINATEBACK PURGING             MADE IN THE USA

About

• Fiback Fiberglass Weld Backing Tape is an innovative substitute for traditional back purging

methods that provides protection to the backside of the weld environment and ensures a

high quality finish. Fiback is flexible, heat resistant, and halogen and fluorocarbon-free,

enabling it to be a complete solution for plate, sheet and pipe welding needs.

• This welding tape is composed of two adhesive areas around the outside edges with a center

fiberglass strip, heat resistant up to 1,022°F (550°C) and withstanding applications up to 600

amps.

• Suitable for SMAW (stick), TIG, and MIG Welding processes, Fiback can conform to various shapes

making it superior to more rigid solutions that develop stress points between pieces and are

prone to cracking and breaking over time.

Fiback reduces set-up, clean up and weld time; eliminates post-weld grinding and back gouging and

increases work efficiency while minimizing costs.

Fiback 200 AMP

Light duty

Sufficient for thinner materials, such as aluminum, carbon steel,  chrome steels, cast iron, nickel and

cobalt alloys, copper nickel and many more

Often used in general fabrication shops and for  manufacturing pressure vessels and aircraft components

Fiback 600 AMP

Heavy duty

Typically used for denser metals, such as stainless steel, duplex stainless steel and other metals

depending on thickness

Often used for projects in the commercial and military ship manufacturing industry

Can be used with automated equipment for more accurate results

Fiback 200 AMP

Fiback 600 AMP

Features and Benefits

Click on Weld Backing Tape to download product brochure.

Flexible

•Suitable for stainless, carbon, duplex and chrome steels as well as other metals

•Woven fiberglass and malleable aluminum tape easily conforms to a number of complex shapes and

uneven surfaces

•A supportive weld pool is created by forming the tape into a convex shape resulting in an oxygen-

free weld bead

•Consistent in thickness, Fiback creates a continuous bead, ideal for lengthy applications

High Quality & Safe Components

•Halogen and chlorofluorcarbon free, creating a safe work environment

•Fiberglass formulation is also free of mercury, antimony, fluoride, bromide, phosphorous, sulfur, and

lead

•Virgin aluminum foil coated with free acrylic base adhesive

•Tightly and  finely woven, unadulterated fiberglass

Compatibility & Process Applications

•Suitable for SMAW (stick), TIG and MIG welding processes

•Ideal for welding sheet-to-sheet, plate-to-plate, pressure vessels, large diameter pipes and tanks,

longitudinal and circumferential seams and anywhere that a back purging is not possible or very

costly with gas

Increases Efficiency and Savings

•Eliminates the need for back purging, increasing weld productivity and reducing labor costs

•Saves gas as well as down time, allowing the user to bypass filling large structures; such as

pressure vessels and bore pipes; with argon

•Significantly reduces post-weld clean up time by eliminating gouging & grinding

•Perfectly compatible with orbital welding machines

How Fiback Works

Align

Align desired base metals with the required root gap. Center the fiberglass strip over the backside of

the root gap.

Position

Position the fiberglass strip in a convex shape away from the backside of the weld area to

contain the purge gas from the torch tip but avoid consuming the material.

Press

Press the adhesive sections of tape along the sides of the root gap to the base metal,

continuing to center the fiberglass strip. Remember to peel the release liner from the

aluminum tape while progressing along the weld joint. This procedure ensures the adhesive

on the aluminum tape is free from debris and foreign matter.

After Fiback has been applied to the entire length of the metals being joined, press outer

adhesive edges again to create an air tight seal between the tape and the base metal.

Weld

Begin welding the desired seam.

To know more about Aquasol’s Weld Backing Tape, click on this link: http://www.aquasolwelding.com/fiback

ITEM NO DESCRIPTION WIDTH

FIBERGLASS CENTER STRIP

WIDTH LENGTH

AFBT-2.5-200 Fiback Weld Backing Tape 200 AMP

2.5" (64 mm)

1.125" (28.5 mm) 82' (25 m)

AFBT-4.0-200 Fiback Weld Backing Tape 200 AMP

4.0" (102 mm)

1.5" (38 mm) 82' (25 m)

AFBT-2.5 Fiback Weld Backing Tape 600 AMP

2.5" (64 mm)

1.125" (28.5 mm) 41' (12.5 m)

AFBT-4.0 Fiback Weld Backing Tape 600 AMP

4.0" (102 mm)

1.5" (38 mm) 41' (12.5 m)

Types & Sizes

Adhesive 500°F 260°C

Aluminum Foil 1100°F 593°C

Fiberglass Strip 1022°F 550°C

Heat Resistance