KEVLAR
Kevlar is a Light weight, comfortable, flexible, cut resistive, heat and chemical resistive with high decomposition over 400 degree. It is stitched with textile materials to enhance material properties. Kevlar has unique properties, such as high tensile strength, high toughness, and chemical stability at high temperatures in aromatic polyamides. It also provides protection against both heat and cold. Kevlar is widely-used as a friction material in the automotive industry and a combustion protection material in the aerospace industry.
TYPES OF KEVLAR
Kevlar® 29 (K29)
Original product types of Kevlar®, having similar tensile properties with many deniers and finishes. These yarns are used in ballistic applications, ropes and cables, protective apparel such as cut-resistant gloves, in life protection uses such as helmets, vehicular armoring, and plates, and as rubber reinforcement in tires and automotive hoses.
Kevlar® 49 (K49)
It is a high-modulus type used primarily in fiber optic cable, textile processing, plastic reinforcement, ropes, cables, and composites for marine sporting goods and aerospace applications.
Kevlar® 100(K100)
It is colored Kevlar® yarns, used in ropes and cables, tapes and strappings, gloves and other protective apparel, and sporting goods.
Kevlar® 119 (K119)
Kevlar of Higher-elongation, flexible-fatigue–resistant yarn types found in mechanical rubber goods, such as tires, automotive belts, and hoses.
Kevlar® 129 (K129)
Lightweight, high-performance, and high-tenacity type of yarns used in motorcycle racing gear, life protection accessories, ropes and cables, and high-pressure hoses used in the oil and gas industry.
TYPES OF KEVLARKevlar® 29 (K29)
Original product types of Kevlar®, having similar tensile properties with many deniers and finishes. These yarns are used in ballistic applications, ropes and cables, protective apparel such as cut-resistant gloves, in life protection uses such as helmets, vehicular armoring, and plates, and as rubber reinforcement in tires and automotive hoses.
Kevlar® 49 (K49)
It is a high-modulus type used primarily in fiber optic cable, textile processing, plastic reinforcement, ropes, cables, and composites for marine sporting goods and aerospace applications.
Kevlar® 100(K100)
It is colored Kevlar® yarns, used in ropes and cables, tapes and strappings, gloves and other protective apparel, and sporting goods.
Kevlar® 119 (K119)
Kevlar of Higher-elongation, flexible-fatigue–resistant yarn types found in mechanical rubber goods, such as tires, automotive belts, and hoses.
Kevlar® 129 (K129)
Lightweight, high-performance, and high-tenacity type of yarns used in motorcycle racing gear, life protection accessories, ropes and cables, and high-pressure hoses used in the oil and gas industry.
NOMEX
Nomex is an inherently flame-resistant, high-temperature fiber that will not melt, drip or support combustion in air. It also delivers outstanding resistance to a broad range of chemicals. You can find it as a paper, felt, fabric and in fiber forms. Nomex is best known as a barrier to fire and heat. Today, almost all firefighters around the world are protected by Nomex for its unique combination of flame protection, durability and mobility.
A key factor in the protection provided by Nomex® is its ability to carbonize and thicken when exposed to intense heat. This typical reaction increases the protective barrier between the heat source and the wearer's skin and minimizes burn injury.
Uses
- Filter in exhaust filtration systems,
- Typically, a baghouse, that deal with hot gas emissions found in asphalt plants,
- Cement plants,
- Steel smelting facilities,
- Non-ferrous metal production facilities.
Type 430 NOMEX®
A high crystallinity natural filament yarn of NOMEX® with higher strength and chemical resistance than staple spun yarns. Type 430 is used where the aesthetics and properties of a filament yarn are required. It is available in light deniers for textile applications or higher deniers for rubber hose reinforcement applications. Type 430 is used in firefighters’ turnout gear shells and liners, coated fabrics, electrical insulation, radiator hoses, and industrial laundry press covers. Generally, it is used in its natural color because of difficulty in producing a uniformly dyed product.
Type 450 NOMEX®
A natural staple fiber. It has higher crystallinity and strength than Type 455 and 462 fibers, and is sold as a 100% meta-aramid staple in various cut lengths. It is used in applications requiring high tensile properties, as well as chemical and thermal stability, such as in hot gas filtration fabrics, sewing threads, zipper tapes and firefighter’s turnout facing fabrics. It is also used in its natural color for knit products such as balaclavas and underwear. Although dyeable, it is less dyeable than the Type 455 and 462 staple products, and is not available as a dye merged staple.
Type 455 NOMEX® (NOMEX® III)
Type 455 staple of NOMEX®, a patented blend of NOMEX® and KEVLAR® brand fibers, was introduced to fill the need for higher performance thermal protective apparel. Type 455 staple when converted to fabric is known commercially as NOMEX® III. It offers several improvements over yarns or fabrics produced from Type 450 staple. However, because of its lower crystallinity, it produces yarn and fabrics that are slightly lower in strength than those produced from Type 450 staple.
Crease retention and wrinkle resistance can be imparted to NOMEX® III or NOMEX® IIIA by autoclaving pressed garments with steam pressure. Although not as strong as the memory of heat-set polyester, these memory forces provide significant advantages in appearance and ease of care vs. many competitive materials, or unautoclaved garments.
Type 462 NOMEX® (NOMEX®IIIA)
Type 462 staple of NOMEX® is a blend of NOMEX® and KEVLAR® brand fibers and P-140, a proprietary static dissipative fiber. When converted to fabric it is known commercially as NOMEX® IIIA and is used for thermal protective apparel. It offers all the features of Type 455 staple plus a higher level of static dissipation in fabric form. The P-140 fiber dissipates static generated from fabric-to-fabric and fabric-to-surface rubbing, minimizes the contribution of clothing to static hazards and reduces apparent electric field strength and nuisance static. The staple is dye mergeable and can be package dyed as yarn for use in knit goods or sewing threads, or piece dyed as fabric for civilian protective apparel. Except for the static dissipative properties of NOMEX® IIIA, all other properties are essentially the same as for NOMEX® III. Properties reported in this guide should be considered applicable to both, unless a specific difference is noted in the text.
ALUMINIZE
A thermal process through which a thin layer of aluminum is coated on other material to enhance its thermal properties. These provide reflective and insulating protection. It is good for flexible use because of soft aluminum coating. Suitable for radiation heat up to 1000 degree Celsius.
