3M Water Contact Indicator Tape 5557 305mm x 165m
product detail
3M™ Water Contact Indicator Tape 5557 is the industry standard for detecting liquid infiltration in sensitive electronic devices. This high-quality, pressure-sensitive tape features a specialized paper backing that irreversibly changes color from white to pink/red when it comes into direct contact with water or other liquids.
This massive 305mm x 165m industrial-sized roll is designed for high-volume die-cutting and professional assembly lines. The film-coated top layer ensures the tape remains stable in high-humidity environments without false triggering, only reacting to liquid water.
Key Features:
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Irreversible Color Change: Provides a permanent record of water contact for warranty claims and repair assessments.
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Humidity Resistance: Does not change color due to high humidity, preventing "false positives."
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Strong Adhesion: Features a high-performance acrylic adhesive that bonds well to low-surface-energy plastics and metals.
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Die-Cut Ready: The 305mm width is perfect for converting into custom small dots or square labels.
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Thin Profile: Total thickness of 0.102 mm allows for application in compact electronic housings.
Application
3M 5557 is globally utilized for liquid damage forensics in:
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Smartphones & Tablets: Placed near charging ports, SIM trays, and speakers to monitor for water ingress.
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Laptop & Computing Hardware: Positioned under keyboards and near cooling vents to identify spill damage.
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Battery Packs: Essential for lithium-ion battery safety monitoring to detect electrolyte leakage or external water exposure.
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Wearable Electronics: Used in smartwatches and fitness trackers to verify seal integrity.
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Medical Devices: Ensures the internal circuitry of portable diagnostic equipment has not been compromised by fluids.
