Ultranitril 377

Comfort and reinforced mechanical resistance for long-lasting chemical protection

  • Suitable for long-term wear; comfortable textile support, seamless working surfaces
  • Longer service life for heavy-duty work: high mechanical resistance
  • Forearm protection: long-sleeved glove
  • Previous name : Ultril 377


  • Automotive/mechanical industry
    • Surface treatment
    • Machine tool manufacture
    • Automotive assembly
  • Other industries
    • Print-press cleaning
    • Industrial cleaning
    • Heavy-duty packaging
  • Chemical industry
    • Chemical product blending
    • Unloading fuel
    • Manufacture and application of paints and varnishes
    • Manipulating valves
    • Cleaning tanks
    • Handling and transporting drums of chemical products

Product details

  • Cat. 3
  • Mechanical hazards EN 388
  • Type A
    Specific Chemical Protection EN 374
  • Heat and fire EN 407
Material Nitrile
Colour Green
Interior Finish Textile support
Exterior Finish Smooth
Length (cm) 38
Thickness (mm) 1.30
Size 8 9 10
Packaging 1 pair/bag
5 pairs/box
50 pairs/carton
Chemical Protection - Ultranitril 377 - situation
Chemical Protection - Ultranitril 377 - situation

Operating instructions

Instructions for use

  • It is recommended to check that the gloves are suitable for the intended use, because the conditions of use at the workplace may differ from the "CE"-type tests.
  • It is not recommended for persons sensitised to dithiocarbamates and thiazoles to use these gloves.
  • Put the gloves on dry, clean hands.
  • Do not use the gloves in contact with a chemical for a duration in excess of the measured breakthrough time. Refer to the website www.mapa-pro.com or contact the Technical Customer Service - MAPA PROFESSIONNEL (stc.mapaspontex@mapaspontex.fr) in order to know this breakthrough time. Use 2 pairs alternatively when in long duration contact with a solvent.
  • Turn the cuff end down in order to prevent a hazardous chemical from dripping onto the arm.
  • Inspect the gloves for cracks or snags before reusing them.

Storage conditions

Store the gloves in their original packaging protected from light and humidity.

Laundering conditions

Before taking off the gloves, clean them as appropriate :

  • in use with paints, pigments and inks : wipe with a clean cloth dampened with a suitable solvent, and rub over with a dry cloth
  • in use with a solvent (diluents, etc...) : rub over with a dry cloth
  • in use with acids or alkalines

Caution : improper use of the gloves or submitting them to a cleaning or laundering process that is not specifically recommended can alter their performance levels.

Drying conditions

Ensure the inside of the gloves is dry before putting them on again.


This product is not classified hazardous according to the regulation (EC) n°1272/2008 of the European Parliament and of the Council. This product does not contain more than 0.1 % of substance of very high concern (SVHC) or any substance included in the annex XVII of the regulation n° 1907/2006 of the European Parliament and of the Council (REACH).


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Chemical chart

Chemical Product CAS # BTT
Standard Degradation
Ammonium hydroxide solution 25% 1336-21-6 480 6 EN 16523-1:2015 3
Diethylamine 98% 109-89-7 24 1 EN 16523-1:2015 NT
Formaldehyde 37% 50-00-0 NT NT 3
Hydrochloric acid 10% 7647-01-0 480 6 EN 374-3:2003 NT
Hydrochloric acid 35% 7647-01-0 480 6 EN 374-3:2003 NT
Hydrogen peroxide 30% 7722-84-1 480 6 EN 16523-1:2015 4
Methanol 99% 67-56-1 67 3 EN 374-3:2003 3
n-Heptane 99% 142-82-5 480 6 EN 374-3:2003 4
Sodium hydroxide 20% 1310-73-2 480 6 EN 374-3:2003 NT
Sodium hydroxide 40% 1310-73-2 480 6 EN 374-3:2003 3
Sodium hydroxide 50% 1310-73-2 480 6 EN 374-3:2003 NT
Styrene 99% 100-42-5 18 1 EN 16523-1:2015 NT
Sulfuric acid 96% 7664-93-9 192 4 EN 16523-1:2015 3
Toluene 99% 108-88-3 7 0 EN 16523-1:2015 NT

*not normalized result

Overall Chemical Protection Rating

Protection rating is determined by taking into account the effects of both permeation and degradation in an attempt to provide users with an overall protection guideline when using our glove products against specific chemicals.

Used for high chemical exposure or chemical immersion, limited to BTT based on a working day.

Used for repeated chemical contact, limited to total chemical exposure i.e. : accumulative BTT based on a working day.

Splash protection only, on chemical exposure the gloves should be discarded and new gloves worn as soon as possible.

Not recommended, these gloves are deemed unsuitable for work with this chemical.

NT : Not tested

NA : Not applicable because not fully tested (only degradation OR permeation results)

The chemical test data and overall chemical protection rating should not be used as the absolute basis for glove selection. Actual in-use conditions may vary glove performance from the controlled conditions of laboratory tests. Factors other than chemical contact time, such as concentration and temperature, glove thickness and glove reuse, may also affect performance. Other glove requirements, such as length, dexterity, cut, abrasion, puncture and snag resistance, or glove grip also need to be considered in making your final selection.