Protect your electronics warranty policies and prevent fraudulent claims with Mactape’s Genuine 3M™ Water Contact Indicator Tapes (Models 5557, 5558, and 5559). Specifically engineered for electronic liquid intrusion detection, these high-sensitivity water indicator stickers feature an irreversible white-to-red color transition upon direct contact with liquid water.
At Mactape, we process authentic 3M substrate materials into custom sizes, precision die-cut shapes, and pre-printed designs—offering a single-source solution for consumer electronics, battery packs, power equipment, and PCB subassemblies.
Irreversible White-to-Red Color Transition: Features 3M’s patented water-sensitive dye technology. When exposed to liquid water, the tape turns from clean white to vivid red permanently. The color change remains intact even after drying, providing undeniable physical proof for warranty claims.
Three Precision Thicknesses (5557, 5558, 5559):
3M 5557 (Standard): 0.259 mm thickness; versatile for general industrial and electronic enclosures.
3M 5558 (Thin): 0.152 mm thickness; ideal for space-constrained internal assemblies.
3M 5559 (Ultra-Thin): 0.127 mm thickness; engineered specifically for ultra-thin portable electronics, smartphones, and wearables.
False-Positive Resistant: Tested to withstand high humidity and temperature extremes (-40°C to 65°C) without false triggers. Changes color only upon direct immersion or liquid water contact—not atmospheric humidity or vapor condensation.
3M High-Tack Acrylic Pressure-Sensitive Adhesive: Delivers high initial tack and reliable bond strength across PCB boards, metals, plastics, and smooth surfaces. Won't lift, peel, or warp over extended operational lifespans.
Custom Variable Data Printing: Supports laser and inkjet printing for custom logos, serial numbers, barcodes, QR codes, and warranty disclaimer messaging.
Flexible Custom Die-Cutting: Precision die-cutting available in any shape or dimension (down to 2 mm diameter) with low Minimum Order Quantities (MOQs) for prototype and full-scale production runs.
Parameter | 3M™ 5557 | 3M™ 5558 | 3M™ 5559 |
Product Category | Standard Type | Thin Type | Ultra-Thin Type |
Total Thickness | 0.259 mm | 0.152 mm | 0.127 mm |
Initial Color | Pure White | Pure White | Pure White |
Triggered Color | Bright Red (Irreversible) | Bright Red (Irreversible) | Bright Red (Irreversible) |
Adhesive Type | High-Tack 3M Acrylic PSA | High-Tack 3M Acrylic PSA | High-Tack 3M Acrylic PSA |
Operating Temp Range | -40°C to 65°C (-40°F to 149°F) | -40°C to 65°C (-40°F to 149°F) | -40°C to 65°C (-40°F to 149°F) |
Printability | Laser / Inkjet | Laser / Inkjet | Laser / Inkjet |
Recommended Applications | General Electronics & Enclosures | Compact Electronic Assemblies | Ultra-Thin Handheld Devices |
3M Water Contact Indicator Tapes utilize a specialized water-sensitive top layer containing micro-encapsulated red dye.
Dry State: Microcapsules remain stable, leaving the top film clean white.
Water Exposure: When liquid water hits the surface, it penetrates the top layer and dissolves the microcapsules.
Irreversible Reaction: The red dye bleeds evenly through the absorbent backing paper, rendering the sticker permanently red. Subsequent drying or heating cannot revert the label back to white.
Consumer Electronics: Smartphones, tablets, laptops, wireless earbuds, smartwatches, and power banks.
Power Supplies & Batteries: Li-ion battery packs, power adapters, chargers, and UPS units.
Power & Motorized Equipment: Power tool controllers, electric vehicle (EV) control units, and outdoor motor enclosures.
Industrial Electronics: Internal PCB circuit boards, industrial control modules, sensors, and field testing instruments.
Surface Cleaning: Thoroughly clean the mounting surface with isopropyl alcohol (IPA) to remove oils, dust, and residues. Ensure the surface is 100% dry before applying.
Positioning: Peel off the release liner and apply the indicator label to internal locations easily inspected during technical service (e.g., near ports, battery compartments, or seams).
Pressure Application: Firmly press the label across its entire surface using a finger or roller to activate the pressure-sensitive adhesive.
Adhesive Curing: Allow 24 hours of dwell time post-application for full adhesive bonding before exposing the assembly to operational environments or moisture testing.
Warranty Inspection:
White Label: No liquid water intrusion detected.
Red Label: Liquid water intrusion confirmed.
100% Genuine 3M Raw Materials: Sourced through verified supply channels to ensure reliable sensitivity and batch-to-batch consistency.
Custom Die-Cutting & Printing: Custom shapes, sizes, logos, micro-text, QR codes, and batch numbering.
Fast Sample Delivery: Digital proofs dispatched within 24 hours; physical samples shipped within 48 hours.
Low MOQ Options: Flexible ordering starting from small prototyping batches to full volume manufacturing.
