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The Hand Protection Blog

10 FAQs about SHOWA S-TEX 377

SHOWA S-TEX 377 Glove Image - blog FAQsThe SHOWA S-TEX 377 is a fully coated nitrile glove with a high level of cut resistance.

But what else do you need to know? See the FAQs below.

1. Why is this glove a cut level 4 when tested using the Coup Test method but a level D when tested to the ISO 13997 method?

The two testing methods are completely different.

The Coup Test uses a rotating blade moving back and forth, and a fixed force from above.  This method isn’t ideal for gloves featuring liners blended with steel and glass because the test blade can rapidly become blunt and give a false reading.

For example, the SHOWA S-TEX 377 is made with Hagane Coil® technology which contains steel. In the coup test, when the blade of the machine comes into contact with the steel in the glove, the test is stopped as the machine thinks that the sample has been cut through, which isn’t the case.

The ISO 13997 test is much more realistic as it applies different weights on the blade and several measurement are required to validate the level of protection.  In this test, gloves with steel fibres provide more accurate results.  Therefore the SHOWA S-TEX 377 reaches a level D.

2. The glove is ISO 13997 level D, so how can this not be EN 388 cut level 5 cut resistance?

Again, both tests are completely different and a cut level 5 to EN 388:2003 does not mean the glove will reach a high level to ISO 13997.

The Hagane Coil® within the SHOWA S-TEX 377 helps to reach a high level to ISO, whereas on the Coup Test, the machine will stop before cutting through the glove because the blade will come in contact with the steel within the glove; wrongly indicating that the glove sample has been cut through.

That’s why the SHOWA S-TEX 377 will reach only a level 4 and not a level 5.

Additionally, gloves made of glass fibre will blunt the blade and artificially increase the cut resistance on the Coup Test.  But on the ISO 13997, several blades are used so the blunting effect does not exists and results are generally lower than a glove with steel.

Find out more about the new EN 388:2016 standard in our guide.

3. How does the glove cope with machine oils/coolants?

SHOWA S-TEX 377 is fully coated flat nitrile and has a nitrile foam coating on the palm.  The first blue layer of flat nitrile helps to protect the full hand against oils, coolants and water.  The black nitrile foam coating on the palm helps to slightly absorb oils and coolants from the parts surface enhancing the grip effect.

This means that the glove can be used in heavy oily environment but still protects from liquids (not chemicals) and provides an excellent grip.

4. Is the glove waterproof?

The SHOWA S-TEX 377 is a fully coated glove with a flat nitrile barrier, so it will provide excellent water/liquid resistance. But if full liquid proof properties are required, a gauntlet style such as the SHOWA 379 should be used.

However, the coating will protect against water, oil, coolants and liquids (not chemicals).

Generally speaking, gloves with flat nitrile are effectively waterproof but as the SHOWA S-TEX 377 is not a gauntlet style glove, it wouldn’t be sold as such.

5. Is the glove oil resistant?

SHOWA S-TEX 377 is resistant to oils.  Due to the blue flat nitrile all over the hand, the glove will offer very good protection to oils.  Flat nitrile is the best coating to protect against oils.

6. Will the glove offer good grip when wet/oily?

The black nitrile foam coating on the palm of SHOWA S-TEX 377 gives great grip, especially when wet or oily.

Thanks to the microporous structure, liquids are absorbed by the foam, creating great adhesion between the hand and whatever is being handled. Underneath, the flat nitrile coating ensures the skin is well protected from dermatitis risks which can be caused through contact with oil and greases.

7. What size range is available?

6/S, 7/M, 8/L, 9/XL, 10/XXL

8. Is the cut protection on the back as well as the front?

Yes, the cut protection is all over the SHOWA S-TEX 377. The cut protection is provided by the liner that is uniform across the entire glove surface – unlike many cheaper gloves that have cut resistance focused only in some areas of the glove.

9. What is Hagane Coil® yarn?

Hagane Coil® Technology is a unique SHOWA coiling process that binds high performance yarns to a stainless steel core, giving the glove Samurai Technology and providing the wearer with enhanced cut protection compared to using natural or synthetic fibres.

Hagane steel has been selected as it is the high carbon steel used to create Samurai fighting swords. This combined with the unique coiling technique that twists the yarn around the Hagane stainless steel core, offers extremely high protection, comfort and performance even when the hand is bending and flexing.

10. Why chose Hagane Coil® over Kevlar® or Dyneema®?

Kevlar® and Dyneema® used alone typically provide cut levels around 3 (EN 388:2003) or a level B to C (to ISO 13997). Both fibres can be used alone if the end user needs medium cut protection. By using Hagane Coil® yarn, we use a more protecting yarn (stainless steel) in case of high cut risks (metal with sharp edges and burrs) that will provide better protection for the wearer. The glove can reach level D or E to ISO13997.


To try these gloves for yourself visit https://try.showagloves.com/s-tex-377/ to request a sample. Alternatively you can call us on 0161 877 4747 to discuss your hand protection needs.

CATEGORY: Cut Resistance, Health and Safety, SHOWA, Standards

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