Introduction of 3M 9690+
At NEDC, we convert and laminate a wide range of pressure-sensitive adhesives to support custom gaskets, seals, and industrial components. One of the most versatile adhesives we use is 3M™ 9690+, a double-coated acrylic tape designed for high-strength bonding to foams, plastics, and textured materials. When customers need reliable adhesion built into a gasket or assembly part, 9690+ is often our material of choice.
What Is 3M™ 9690+?
3M™ 9690+ is a high-performance double-coated acrylic tape constructed with a clear PET film carrier and 3M’s 300MP+ adhesive on both sides. It offers excellent adhesion buildup, stability during converting, and low fogging, making it suitable for interior and enclosed assemblies.
Key Features:
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Double-coated 300MP+ acrylic adhesive
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PET film carrier for dimensional stability
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Approximate total thickness: 0.14 mm (5.5 mil)
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Tan 83# polycoated kraft liner
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Rated for low outgassing and low fog environments
Performance Characteristics
| Property | Performance |
|---|---|
| Peel Adhesion (72 hr, stainless steel) | ~80 oz/in |
| Static Shear | 8,400+ minutes |
| Temperature Performance | Up to 158°F (70°C) |
| Substrate Compatibility | Foams, Metals, ABS, PP, Painted Surfaces |
This adhesive is designed to wet-out on irregular surfaces and continue to build bond strength over time, even under load and temperature.
How NEDC Uses 3M 9690+
We use 9690+ primarily as a bonding layer on foam and rubber gaskets, where customers need peel-and-stick installation or assembly-ready components.
Typical Industrial Uses at NEDC:
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Laminated to urethane foams, neoprene, EPDM, and other gasketing materials
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Applied to plastic housings and panels such as ABS and polypropylene
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Integrated into custom-cut seals and spacers that need consistent adhesion during installation
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Used where clean die-cutting and liner handling are important
Comparison to Other Common Tapes at NEDC
| Tape | Type | Typical Use |
|---|---|---|
| 3M 9448A | Double-Coated Tissue Tape | General assembly, softer foam bonding |
| 3M 467MP | Transfer Tape (200MP) | Metal nameplates, flat bonding |
| 3M 9485PC | Scrim Carrier + Strong Adhesive | High-performance foam and plastic bonding |
Note: 3M 9448A is a tissue-based adhesive tape — softer and more conformable — while 9690+ offers a stronger, more stable acrylic bond with a PET film carrier for cleaner die-cutting.
Why We Recommend 9690+ for Gaskets and Parts
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Strong bonding to low-surface-energy plastics and foams
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Maintains alignment during waterjet or die-cut processing
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Low fog/outgassing for enclosure or interior applications
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High shear holding for secure long-term adhesion
NEDC Converting Capabilities
We can deliver 9690+ in fully finished, application-ready parts using processes such as:
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PSA lamination to customer materials
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Kiss-cut rolls and sheets
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Waterjet or steel-rule die-cutting
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Prototype through production scale
Conclusion
3M™ 9690+ is a dependable, high-tack acrylic tape that plays an important role in gasket manufacturing and bonded components at NEDC. When a part needs to install cleanly and stay put over time, 9690+ gives us — and our customers — confidence.
If you need foam gaskets or custom-cut parts with 9690+ applied, NEDC can laminate, convert, and ship them ready for assembly.