Nitto, Inc.
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Frequently Asked Questions

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  ORDERS

  • I have a question about my order, who should I contact?
  • Please contact us for questions about your order.
  • Can I order with a purchase order?
  • Please reach out to us to place a purchase order if you cannot use our current ecommerce site.
  • How can I request a sample?
  • For sample requests, please fill out our contact us form.
  • I have a technical question about the product. Who can I contact?
  • For any technical issues please contact us.
  • How long does it take for my order to ship?

  • Orders take 2 to 3 business days to process and then ship via FedEx. Shipping times are determined by your selected shipping method (options include: ground, 2 day, overnight, etc.). International orders take longer. However, due to the COVID-19 pandemic, there may be additional delays.

  • I want to place an order, but my country is not on the shipping list. What can I do?
  • Please fill out our contact us form and let us know what country you are trying to order from and where the product(s) will be shipped to.
  • Can I place an order, and have it ship to multiple locations?
  • Currently our online store is set up to ship to one location per order. If you need to ship to multiple locations, you can either place multiple orders on the website or contact us directly.
  • I have a VAT/Tax exempt number, how can I add it to my order?
  • If you have a VAT and/or tax exempt number, please contact us and we'll assist you with your order.

  HYDROGEN DETECTION TAPE

  • How fast does the tape change color?

  • The speed of the color change depends on the concentration of hydrogen, flow rate and temperature. For example, a 100% hydrogen concentration at 6ml/min flow rate at room temperature will have a color change in under a minute. The speed of the color change may decrease if the tape has been applied in an outdoor or hot environment for an extended period.

  • What is the product warranty of the hydrogen detection tape?
  • The product warranty is 12 months from the receiving date.
  • How should the tape be stored?

  • The hydrogen detection tape should be stored between 50°F-80°F (10°C-27°C), at 25-50% relative humidity, and out of direct sunlight.

  • How long will the tape work for?

  • We recommend replacing the hydrogen detection tape every six months from date of installation.

    After 6 months, the tape may become less sensitive to hydrogen gas which may result in slower color change. The tape may also become fragile and hard to remove, especially in outdoor applications.

  • What other gases may cause tape to change color?

  • The hydrogen detection tape may change color in the presence of hydrogen sulfide (H2S) and/or carbon monoxide (CO) at above 100°C.

  • Does the hydrogen detection tape work for natural gas/methane?
  • No, it does not detect natural gas/methane.
  • Does hydrogen detection tape work if hydrogen gas is mixed with other gases?

  • If hydrogen gas is present, the color will change. However, at ambient conditions if the hydrogen is diluted with other gases such as carbon monoxide (CO), hydrogen sulfide (H2S), or nitric oxide (NO) the color change will be slower. Not all gases have been tested. Please contact us for more information.

  • Does it work for hydrogen sulfide (H2S)?

  • We do not recommend using this product for hydrogen sulfide. Hydrogen detection tape can change color in the presence of hydrogen sulfide, but only at temperatures higher than 212°F (100°C). No color change has been observed at room temperature with 500ppm of H2S.

  • Can you customize the color of the tape?

  • No, the amber color comes from the polyimide backing which is used to protect against UV light and the color-change to black is this product’s specific characteristic.

  • Is the color change reversible?
  • No, the color remains the same even after the gas has been stopped.
  • Can this tape be used outdoors?

  • Yes, hydrogen detection tape has been tested in high humidity, and in high/low temperature chambers. Additionally, 18-month field trials have been conducted in all seasons including sunshine, rain, and snow.

    It may be more difficult to remove the tape in regions with higher humidity and temperature. If residue is left behind, it can be removed with a solvent (i.e. alcohol, etc.).

  • Can this tape be used in high temperatures?

  • Yes, this tape can be applied to surfaces up to 212°F (100°C). At higher temperatures, the longevity of the tape may be reduced depending on the temperature.

  • Can this tape be used in low temperatures?

  • Yes, hydrogen detection tape can be used in in temperatures as low as -40° F (-40° C). At lower temperatures, the observable color change may be slower.

  • What is the tape's sensitivity (PPM level)?

  • The hydrogen detection tape will change color with leaks that contain as little as 1% hydrogen. Lower levels of hydrogen will require more time for observable color change. Color change speed also depends on flow rate and temperature.

  • How is it applied?

  • For detailed information on how to apply this product, please see our application manual or watch our application video. If you have additional questions, please contact us.

  • Where can it be applied?

  • Hydrogen detection tape can be applied at hydrogen storage locations, including transfer pipes with threaded joints, hydrogen dryers, etc.

  • Can it be painted on?
  • No.
  • Can it be used as an area sensor or space sensor?

  • No, this tape was developed to detect exact leak locations on pipelines, vessels, etc. This tape should not replace an area sensor and should be used as part of a comprehensive leak detection system. Please refer to the manual for further application explanations.

  • Can gas leaks be stopped by this tape?

  • No, this tape does not stop gas leaks. It is meant to be a proactive approach to detecting potential leaks.

  AMMONIA DETECTION TAPE

  • How fast is the color-change for detection of ammonia (NH3)?
  • The speed of the color change depends on the ammonia gas concentration, flow rate, and temperature. For example, if the gas was 30% liquid ammonia at room temperature, full color change is seen in less than 5 minutes. If the gas was 7.5% ammonia (balance gas of 92.5% is air), full color change is seen in less than 5 minutes.
  • What is the product warranty of the ammonia detection tape?
  • The product warranty is 12 months from the receiving date
  • How should the ammonia tape be stored?
  • The ammonia detection tape should be stored between 50°F-80°F (10°C-27°C), at 25-50% relative humidity, and out of direct sunlight.
  • How long will the ammonia tape work for?
  • We recommend replacing the ammonia detection tape every six months from date of installation, or right after a color change has occurred, whichever is sooner. After 6 months, the tape may become less sensitive to ammonia gas, which may result in slower color change. The tape may also become fragile and hard to remove, especially in outdoor applications.
  • What happens when the ammonia tape gets old?
  • It becomes less sensitive to ammonia gas, resulting in a slower color change. When installed, old tape may become fragile and hard to remove, especially in outdoor applications.
  • What other gases may cause the ammonia detection tape to change color?
  • Hydrogen sulfide (H2S) makes the tape color change to dark gray. However, a concentration of 100ppm or higher is required for this change, which is a fatal level; ordinarily, such circumstances do not exist in a typical user-friendly environment. You should not create an environment with a high concentration of hydrogen sulfide or test this detection tape with other gases.
  • Can ammonia detection tape be used outdoors?
  • Yes, it has been tested in high humidity, high temperature and cold temperature chambers.  Also, field trials with sunshine, rain and snow have been conducted.
  • Can ammonia detection tape be used at high temperatures?
  • See product data sheet for further details. The best performance is on objects with a surface temperature of 212°F (100°C) or lower. At temperatures higher than 212°F (100°C), it can be applied only for a short period of time (length of time depends on temperature). At temperatures higher than 212°F (100°C), color change may not be able to be observed.
  • Can ammonia detection tape be used at lower temperatures?
  • In typical applications, it can be used at temperatures as low as -4°F (-20°C).  It has not been tested at temperatures under -4°F (-20°C). Color change is slower at lower temperatures. See product data sheet for further details.
  • What is ammonia detection tape's sensitivity? What parts per million (ppm) level can it detect?
  • The ammonia detection tape will change color with leaks that contain as little as 0.27% ammonia. Lower levels of ammonia will require more time for observable color change. Color change speed also depends on flow rate and temperature. This tape is not meant to detect ammonia in the open air; it must be applied to the surface to create a confined space between the tape and the potential leak location. See product data sheet for further details.
  • How does ammonia detection tape get applied?
  • When applying the tape, make a confined space to get a faster color change. For more detailed information on how to apply this product, please see our application manual. If you have additional questions, please contact us. 
  • Where can ammonia detection tape be applied?
  • Any system using ammonia gas - wrap around joints, flanges, fittings, valves, etc. It may also be used at locations with vibrations, temperature fluctuations, intermittent gas flow, and wind.
  • Can ammonia detection tape be painted on?
  • No.
  • How often does ammonia detection tape need to be replaced?
  • We recommend replacing the tape every 6 months from date of installation, or right after a color change has occurred and leak has been mitigated, whichever is sooner. 
  • Is the ammonia detection tape color change reversible?
  • Generally, the color change will remain for about 72 hours, even if the gas flow has been stopped.
  • What is the storage conditions for ammonia detection tape?
  • Store the tape between 50⁰F – 80⁰F (10⁰C – 27⁰C), 25 – 50% relative humidity, out of direct sunlight.
  • Can gas leaks be stopped by ammonia detection tape?
  • No, this tape does not stop gas leaks. It is meant to be a proactive approach to detecting potential leaks by being part of a comprehensive leak detection system.
  • Can ammonia detection tape be used as an area sensor or space sensor?
  • No, this tape was developed to detect specific leak locations on pipelines, vessels, etc. This tape should not replace an area sensor and should be used as part of a comprehensive leak detection system. Please refer to the application manual for further details.
  • I notice a slight bluish color on the edge of a new roll ammonia detection tape. Is this normal?
  • The bluish edge is normal for the product and does not affect the product’s performance and/or functionality.
  • What happens when ammonia detection tape is soaked in water?
  • If the tape has been soaked in water, the color change will be less intense. The tape has been tested by being submerged under water for one month. The submerged tape had a reduction in color change by about 60%; however, even in this circumstance, the tape’s color change was easy to identify.