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Brazing Preform

Brazing occurs at a temperature above 450℃. Braze Preforms are made of alloys customized into different shapes and dimensions specific to an application. The size of a preform is determined by the volume needed. Preforms are preferred for precision applications due of the uniform volume, consistency, and adhesion it delivers to the joint. Braze Preforms come in a variety of standard shapes e.g., rectangles, squares, discs or frames, and sizes as required by customers. COINING can customize preform geometry for any application. Dimensions can also be held to tight tolerances for volume accuracy.

  • Available in a variety of shapes and sizes
  • Increased efficiency and productivity
  • Delivers the precise solder to the right location
  • Stable quality alternative compared with hand soldering
  • Extremely durable
  • Solution to solder-starved conditions

Brazing Preform


Rectangle and Disc

Thickness: 0.0005 to 0.030 (+/-) 0.0001
0.030 to 0.125 (+/-) 0.001

Washer and Frame

Thickness: 0.001 to 0.030 (+/-) .0005
0.030 to 0.125 (+/-) 0.001

Other specifications available upon request.


  • Aerospace
  • Medical devices
  • Defense
  • Optical Communications
How it’s made

COINING’s Solder Preforms are made of solder alloys and customized into shapes and dimensions specific to an application. Microstamped pieces of foil take the shape that matches solder joints, which optimizes soldering distribution in a precise manner. The size of a Solder Preform is determined by the volume of solder needed.

Solder and Brazing Preform Brochure Download
Our Available Alloys