Hi Temp Products of Canada Inc.

        

High Temperature Fire Blankets and Welding Blankets for Industry

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FM Global 4950 / ANSI 4950 Approval

The fact that a material is FM/ANSI 4950 approved is extremely important as this currently appears to be the only recognized standard for testing materials used in hot work operations.

Hi Temp is pleased to be approved of the following materials on levels:

Welding Pad: R53
Welding Blanket: R51
Welding Curtain: O51, P51

The following is reprinted from the FM Global 2008 Approval Guide in regard to the levels of each of the standards.

Welding blanket is a heat resistant fabric designed to be placed in the vicinity of a hot work operation. Intended for use in horizontal applications with light to moderate exposures such as that resulting from chipping, grinding, heat treating, sand blasting and light horizontal welding. Designed to protect machinery and prevent the ignition of combustibles such as wood that are located adjacent to the underside of the blanket.

Welding curtain is a heat resistant fabric designed to be placed in the vicinity of a hot work operation. Intended for use in vertical applications with light to moderate exposures such as that resulting from chipping, grinding, heat treating, sand blasting and light horizontal welding. Designed to prevent sparks from escaping a confined area.

Welding pad is a heat resistant fabric designed to be placed directly under a hot work operation such as welding or cutting. Intended for use in horizontal applications with severe exposures such as that resulting from molten substances or heavy horizontal welding. Designed to prevent the ignition of combustibles that are located adjacent to the underside of the pad.

The performance of welding blankets, curtains and/or pads may be drastically reduced if they exhibit any of the following characteristics:

  • Discoloration
  • Attached slag
  • Rips and/or tears
  • Frayed material
  • Holes of any size
Welding blankets, curtains and/or pads which have any of the characteristics shown above may be reused if the affected area(s) is completely removed by cutting out the entire affected section to the nearest edge of the welding blanket, curtain and/or pad. The entire affected section must be removed before the welding blanket, curtain and/or pad is placed back in service such that there are no openings in the welding blanket, curtain and/or pad.

In order to be effective, the welding blanket, curtain and/or pad must completely cover the surface(s) to be protected.

To review the requirements to obtain FM approvals please visit FM's website at:

About FM Global —Company Profile, News, History

Test Procedure  ANSI/FM-4950 dated 2007

To understand more about this rigorous testing, please view the following video:

 

                                                    FM 4950 Testing-24 Oz Material 

 

Click picture for video