Welding FM Approved Hot Work Fabric Selection

FM Approved fabrics must meet certain performance ratings in order to be labeled as a Welding Curtain, a Welding Blanket or a Welding Pad. It is these rated fabrics that will comply with NFPA 51B (2009) and are recognized by the Standards Council of Canada.

Weight, thickness and coatings all have an impact on performance when choosing FM Approved fabrics for hot work. We have developed a few questions that will help you match your criteria to the kind of fabric required for your hot work application.

Click here for a brief video on the NFPA 51B requirements for FM Approved Hot Work Fabrics.

* Online FM Global Approval Guide

You will need a Welding Curtain or a lighter duty hot work fabric if:

... Sparks and spatter are concentrated in a small area?
... Welding is a vertical application?
... Welding is done in an open space?
... Welding is done outdoors?
... Welding involves light to moderate exposure?

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You will need an FM Approved Welding Blanket or medium duty hot work fabric if:

... Welding is a horizontal application?
... Welding is done in an open space?
... Nearby machinery or material requires covering to prevent
ignition of combustibles?
... Welding involves light to moderate exposure?

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You will need an FM Approved Welding Pad or heavy duty hot work fabric if:

... Molten metal slag is likely to drop onto fabric?
... Welding is done in a confined space?
... Fabric will be exposed to extreme heat?
... Welding is a horizontal application?
... Fabric is to be placed directly under hot work operation?

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Please Note:

The information presented is intended as a specification guide only. Materials should be tested for their suitability in any application. Users should also familiarize themselves with the MSDS before handling. No warranties are expressed or implied as application conditions are beyond our control. If you require further information on any of our products, please contact us at 1-800-565-3907 or locally at (403) 216-3300.