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STK supplies Genuine 3M High Temperature Tape 8902, a premium industrial-grade 3.5-mil (0.09mm) blue polyester masking single-sided tape engineered specifically for severe thermal manufacturing environments and complex low surface energy sealing tasks. Composed of an ultra-tough, tear-resistant polyester (PET) film backing paired with an advanced, cross-linked silicone adhesive chemistry, this tape delivers an immediate, aggressive bite on surfaces that naturally repel typical rubber or acrylic adhesives.
Key Features & B2B Benefits
For electronic hardware engineers, roll-to-roll converting plant directors, and heavy-duty metal finishers, 3M 8902 provides a highly predictable, clean-peeling barrier layer that guarantees zero post-processing rework:
+204°C Silicone Resin Grip
Formulated with a specialized silicone adhesive system. It anchors tenaciously to tricky silicone liners, release papers, plastic backing sheets, and treated films without dynamic edge lifting or flying-splice slippage.
Residue-Free Clean Removal
Completely eliminates scraping labor. The ultra-tough polyester (PET) backing resists chemical softening and mechanical tearing during tear-down, peeling away cleanly in one piece with zero adhesive residue left behind.
Aggressive Chemical Electroplating Armor:
Provides high resistance to aggressive chemical etching solutions, caustic electroplating tracks, and deep anodizing baths. It holds a perfect crisp mask line, blocking under-film chemical migration.
High-Heat Autoclave Press Defiance:
Survives the demanding multi-hour heat and heavy vacuum clamping forces of advanced composite structural laminating processes without adhesive ghosting or substrate contamination.
Technical Specifications
|
Adhesive Type |
Silicone |
|
Application |
High Temperature Masking |
|
Backing (Carrier) Material |
Polyester |
|
Backing (Carrier) Thickness (Imperial) |
2 in |
|
Backing (Carrier) Thickness (Metric) |
0.05 mm |
|
Brands |
3M™ |
|
Elongation at Break |
140% |
|
Industries |
Appliance, Automotive, Construction, Electronics, General Industrial, Military & Government, Print, Specialty Vehicles, Transportation |
|
Maximum Operating Temperature (Celsius) |
204 ℃ |
|
Maximum Operating Temperature (Fahrenheit) |
400 ℉ |
|
Minimum Operating Temperature (Fahrenheit) |
-60 ℉ |
|
Product Color |
Blue |
Primary Industrial High-Heat Application Fields
Silicone Liner High-Speed Web Splicing: Making permanent, instant butt splices or flying splices on silicone-coated release papers, clear plastic release liners, and protective films during continuous roll-to-roll converting processing.
High-Temperature Powder Coating Masking: Protecting critical metal threads, grounding points, weld channels, and cosmetic borders on heavy sheet metals entering industrial paint ovens.
Advanced Autoclave Composite Masking: Holding vacuum bagging films, sealing flash lines, and grouping structural layers inside high-pressure carbon fiber heat-curing ovens.
Anodizing & Chemical Electroplating Stop-Off: Serving as a reliable edge mask on electronic components, aluminum casings, and circuit boards submerged in harsh chemical stripping and plating baths.
- Masking components during high-temperature powder coating processes
- Splicing of silicone release liners, films, and papers
- Holding components or vacuum bags in composite bonding operations
- Flash breaker in metal bonding processes where excess epoxy flows onto the tape
- Masking metal surfaces during acidic or corrosive chemical milling baths
- Protective tape reduces scratching during handling and transportation
- Provides an effective barrier for isolating dissimilar metals
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