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Material Safety Data Sheet

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Trade Name: HT Magnet Wire

Description: A solid round conductor of either 27% Nickel Clad Copper (Kulgrid) or Nickel 205 (All Nickel) with a special ceramic insulation coating. Wire gauges are from 18 AWG through 42 AWG.


The following are the ingredients of the conductors and coating with the CAS Number for the items that are currently on the Environmental Hazardous Substance List.

Ingredient % By Weight CAS Number
Kulgrid All Nickel
In Core In Cladding
Copper 99.92 0.2 0.2 7440-5-08
Nickel -- 99 99 7440-02-0
Iron -- 0.3 0.3  
Manganese -- 0.35 0.35 7439-96-5
Carbon -- 0.2 0.2  
Silicon -- 0.2 0.2  
Sulfur -- 0.008 0.008 7704-34-9
Ingredient % By Weight CAS Number
Lead Oxide 30.0-50.0 Unknown
Titanium Oxide 15.0-25.0  
Silicon Dioxide 15.0-25.0  
Magnesium Dioxide 8.0-15.0  
Boron Oxide 1.0-5.0  
Nickel Oxide 1.0-3.0  
Manganese Dioxide 1.0-3.0 1313-13-9
Cobalt Oxide 0.5-2.0  
Aluminum Oxide 0.5-2.0  

HT wire does not pose a hazard in its delivered form. It is inert and the coating and conductors will remain intact unless heated above 2000°F, when it will melt. This is beyond the operating temperature of the product.

As a minimum, the coating should be treated as a Nuisance Dust (not otherwise regulated or classified) and care should be taken when stripping the insulation that the stripped powder is not inhaled (the amounts typically stripped are negligible and no special ventilation or safety equipment is required).


Melting Point: Beyond 2000°F
Solubility in Water: Negligible
Appearance and Odor: Grayish, no odor


Flash Point: Not Applicable

Hazardous Decomposition Products: The materials are normally stable and decompose only in extreme cases such as fire, in which case they will melt and possibly give off gases such as the oxides of carbon which are the normal expected products of combustion in the presence of large amounts of air. The products of poorly ventilated combustion are an uncharacterized mixture of organic compounds. This mixture will be as hazardous as the normal fire gases associated with poorly ventilated combustion.

Special Fire Fighting Procedure: Products of combustion may be toxic; avoid breathing fumes. Fire fighters should be equipped with self-contained breathing apparatus. Do not enter confined fire space without full bunker gear including a positive pressure, NIOSH listed self-contained breathing apparatus.


Lead Oxide: Can cause lead poisoning and other ailments; avoid inhalation of the ceramic powder from the coating on the wire.

Titanium Dioxide: Can cause eye and respiratory irritation; avoid inhalation of the ceramic powder from the coating on the wire or rubbing eyes with powder on hands.

Manganese Dioxide: Can cause eye and respiratory irritation; avoid inhalation of the ceramic powder from the coating on the wire or rubbing eyes with powder on hands. Abrasive Surface: The surface of the wire is abrasive and can cause cuts to fingers if wire passes through fingers rapidly.

Abrasive Surface: The surface of the wire is abrasive and can cause cuts to fingers if wire passes through fingers rapidly. Avoid direct contact with fingers during wire winding procedures


If an adverse reaction occurs after exposure, promptly start the recommended procedures below. Seek medical attention if further treatment is required.

Eye Contact: Flush eyes with plenty of running water for at least 15 minutes. Hold the eye lids apart during the flushing to ensure the rinsing of the entire surface of the eye and lids with water. Seek medical attention if eye irritation occurs.

Inhalation: If ceramic powder inhaled and breathing difficulties experienced, remove to fresh air. Seek medical attention if difficulties persist.

Cuts To Fingers: Clean cut area, apply antiseptics and bandage as appropriate. Seek medical attention if cut is deep and/or bleeding will not stop.


Ventilation: No special exhaust ventilation is required as the amount of ceramic powder that will be generated from normal use of this product (e.g. coil winding, stripping of leads) is negligible.

Eye Protection: No special protective equipment is necessary. Care should be taken to insure hands are washed before they are placed in contact with eyes.

Abrasion Protection: Protective gloves are other suitable means should be used to prevent fingers from being in direct contact with the wire while it is being wound (coil winding).


A bulletin such as this cannot be expected to cover all possible individual situations. As the user has the responsibility to provide a safe workplace, all aspects of an individual operation should be examined to determine if, or where, precautions - in addition to those described herein -are required. Any health hazard and safety information contained herein should be passed on to your customers or employees, as the case may be. Ceramawire must rely on the user to utilize the information we have supplied to develop work practice guidelines and employee instructional programs for the individual operation.


The information contained herein is, to the best of our knowledge and belief, accurate. However, since the conditions of handling and use are beyond our control, we make no guarantee of results, and assume no liability for damages incurred by use of this material. All chemicals and products may present unknown health hazards and should be used with caution. Although certain hazards are described herein, we cannot guarantee that these are the only hazards, which exist. Final determination of suitability of the product is the sole responsibility of the user. Users of any chemical or product should satisfy themselves that the conditions and methods of use assure that the product is used safely. No representations or warranties, either expressed or implied, of merchantability, fitness for a particular purpose or any other nature are made hereunder with respect to the information contained herein or the product to which the information refers. It is the responsibility of the user to comply with all applicable Federal, State and Local laws and regulations.

Nothing contained herein is to be construed as a recommendation for use in violation of any patents or of applicable laws or regulations.

Contact Us: Ceramawire does not stock finished product and is manufactured per customer order. Please contact us with your requirements.