The 8 advantages of C&G® Nomex® IIIA flame retardant garments

01 Unique protective barrier to high temperature and flame

When exposed to high temperature continuously, Dupont® Nomex® IIIA fiber will carbonize and get thicker to prevent heat conduction between heat source and body to increase protection and reduce burn injury (See Pic.1). The strong protective barrier will keep soft and tough until the garment cools down. It will provide time for the user to escape.

Pic1 It shows that Dupont® Nomex® IIIA garment will carbonize and get thicker when exposed to high temperature and flame.

theoretical thickness

Pic1

The picture shows theoretical thickness

According to the assembling procedure of single fabric suggested by ASTM D-4108 Thermal protective performance tests (TPP)

02 Excellent performances in Vertical Burning

Dupont® Nomex® IIIA flame resistant fabric can easily pass Vertical Burning Test (A basic flame resistant test which tests if the fabric will be lighted and burned after being exposed to fire for 12 seconds). Most protective fabric can pass Vertical Burning Test, but 100% Cotton, CVC and TC fabric will be lighted and cannot pass the test (See Pic.2).

FTMS 191 A; 5903.1. All fabrics were washed one time

Pic.2

FTMS 191 A; 5903.1. All fabrics were washed one time

03 Outstanding performances in Thermal Protective Performances (TPP) Test

TPP tests the protective performance of the fabric in deflagration. The higher the TPP value is, the better the protective performance is.TPP test shows that Dupont® Nomex® IIIA fabric performs much better than chemical-treated FR fabric, and even lighter Dupont® Nomex® IIIA fabric performs better than heavier chemical-treated FR fabric (See Pic.3).

Pic.3

04 Excellent wear-resistant, tear-resistant and chemical-resistant performance

Nomex® MIA fabric performs much better than 100% Cotton, CVC and TC fabric in wear-resistance and tear-resistance, and it will make the garments with a longer life.Besides, Nomex® IIIA fabric is chemical-resistant, it resists most of inorganic chemicals and organic solvent, thus it is anti-corrosion and aging-resistant. In different industrial area, the chemical-resistant performance enhances the durability of the garments, and the garments could be washed by organic solvent to remove the flammable contaminants without affecting the life span of the garments.

1. The chemical-resistant performance refers that the fiber can resist the degradation instead of the penetration of chemicals. The fabric of Dupont® Nomex® IIIA which is covered or coated by certain materials could be used to prevent the penetration of chemicals.
2.0riginated from STP1133 of ASTM.

05 Unique economy and durability

Generally, the durability of Dupont® Nomex® IIIA fabric is 3 to 5 times better than other protective fabrics (including 100% Cotton, CVC, TC and FR Cotton fabric). Besides, the flame resistance of Dupont® Nomex® IIIA fabric is permanent and will not get weak after times of washing and usage.

Chart1 lists the durability of different FR garments.

Chart1 lists the durability of different FR garments.

06 The fabric is light and comfortable

As per trying experiment, the weight of garments affects the degree of comfort. Dupont® Nomex® IIIA garments are with high strength, good durability and fine breathability. And light fabric could be used to make more comfortable garments.

Dupont® Nomex® IIIA garments are with good breathability. It will promote air flow so that the energy of body could scatter fast.

There is a special moisture-absorbing component which is widely used in sportswear used by top tennis sportsmen. This kind of component will absorb the moisture on the surface of

skin and transfer it to larger surface areas by fiber to make it evaporate fast, which helps users feel dry and comfortable.

07 Professional static control

Dupont® Nomex® IIIA fabric integrates P-140 - a kind of static-eliminated fiber with patent, which could reduce the static caused by the friction between two garments or garments and the surface of other objects (See Pic. 4). P-140 is used to reduce harmful static and make garments more comfortable to wear. Meanwhile, it also can reduce the accumulation of the static on the surface of body.

Professional static control

PIC.4

08 Good protection under the condition of low temperature

Water can eliminate static by conducting electricity, so many of natural or synthetic fiber are anti-static by absorbing moist gas. But the natural fiber like wool, cotton and synthetic fiber will lose anti-static performance under low temperature.

However, Dupont® Nomex® IIIA fabric will keep fine anti-static performance even under the condition of low temperature. It is mainly because of P-140 fiber in Dupont® Nomex® IIIA fabric, which keeps the fabric anti-static even under the humidity of 20%. The excellent anti-static performance has been proved in Electric Charge Decay Test and in the process of wearing.

Chart2

According to US Test Standard 191A (Method 5931), to put the fiber between two paralleled electrodes. When 5KV charge passes, the fiber can hold at least 3KV. And the fiber needs to discharge until to achieve only 10% initial charge within 0.5 seconds when it touches the ground. The test is under 7OF (21℃) and 20% RH.

The real case shows that it will produce enough static energy on the surface of body when taking off the outer wear. The spark produced in the process of static release is strong enough to light flammable steam or air mixture.

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Why do we choose C&G® Nomex® IIIA flame retardant garments?

Flame retardant Metaltech clothing (garment)