ISA Sales & Service, Inc. - Web Logo Soldering Shields


 

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Soldering Shields

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The ISA shield is on the right.  The leading selling brand's shield is on the left.  Standard ISA shields are
11.5" x 11.5" with a grommet in each corner.  ISA performed a flame test to determine the effect of an open flame on both shields.


 

Each test was 60 seconds exposure to the open flame.

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For the first test, the flame was 5" from the shields.  After 60 seconds, there was very little change to either shield.


 

For the second test, the flame was 4" from the shields.  After 60 seconds, each shield changed color but stayed flexible.

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For the third test, the flame was 3" from the shields.  After 60 seconds, the shields showed definite differences in color and flexibility.  ISA's shield was discolored but retained its original flexibility.  The leading brand's shield was discolored and turned brittle.


 

For the fourth test, the flame was 1" from the shields.  After 60 seconds, ISA's shield was discolored in a large spot but remained flexible. 

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Click on above to see full size photo

The leading brand's shield had a quarter size burn hole.


 

A test at 3" was performed on the edge of each shield to determine how the stitched edge would withstand the flame.

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After 30 seconds, both shields discolored.  After 60 seconds, ISA's shield was still flexible and the stitching stayed intact.  The leading shield turned very brittle and the stitching melted.


 

This photo shows a close-up of the stitching of both shields after the edge test was completed.

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Click on above to see full size photo

This photo shows the overall results after all testing were completed.


 

Another photo of both shields after all tests were completed.

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MAPP gas is a combination of liquefied petroleum and Methylacetylene-Propadiene.  It is a stable, high-energy fuel with excellent performance for glass bead making, brazing, soldering, flame-hardening, and many other applications.

 

The MAPP gas flame produces 2,405 BTU/cubic foot with a 5301°F (2927°C) flame temperature, which is much better heating than a propane-only torch.  However, MAPP gas does not have the flexibility with oxidation and reduction flame control which you have with an oxygen & propane torch.

Many materials to choose from

Why spend extra for a shield that withstands a temperature of 2,300°F when you only need one to handle 1,500°F?  When you order from ISA you no longer need to.

Send mail to webmaster@isass.net with questions or comments about this web site.
Copyright © 2007.
Last modified: 05/23/07