AFTC AM9908
AFTC AM9908 is a 0.031″ thick double-sided acrylic foam tape constructed with a coated acrylic foam core, Acrylic Coating 66 adhesive on both faces, and a red PE liner. Formulated specifically for automotive bonding applications on low surface energy (LSE) substrates including ceramics and silicones, it delivers a 90° peel adhesion of 24 lb/in — the highest in the AFTC series to date. The tape is rated for service from −40°F to 248°F short-term and 194°F long-term, with viscoelastic properties that absorb seam tension to support durable long-term bonds.
Key Properties
- 90° Peel Adhesion: 24 lb/in (ASTM D3330)
- Dynamic Shear Strength: 87 lb/in² (ASTM D1002)
- Tensile Strength: 109 lb/in² (ASTM D897)
- Static Shear Strength @ 72°F: 1,000 grams* (ASTM 3654)
- Long-Term Temperature Resistance: 194°F
- Total Tape Thickness: 0.031″ ±15%
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Thickness | 0.031″ ±15% | — |
| Color | Black+ | — |
| Material / Substrate | Coated Acrylic Foam | — |
| Core | Acrylic Adhesive Foam Core | — |
| Adhesive Type | Acrylic Coating 66 | — |
| Adhesive System | Permanent Adhesive | — |
| Adhesive Side | Double Sided Adhesive | — |
| Liner | Red PE liner | — |
| Density | 35 lb/ft³ | — |
| Cell Structure | Closed Cell | — |
Adhesion Properties
| Property | Value | Test Method |
| 90° Peel Adhesion | 24 lb/in | ASTM D3330 |
| Dynamic Shear Strength | 87 lb/in² | ASTM D1002 |
| Tensile Strength | 109 lb/in² | ASTM D897 |
| Static Shear Strength @ 72°F | 1,000 grams* | ASTM 3654 |
| Static Shear Strength @ 150°F | 500 grams* | ASTM 3654 |
| Static Shear Strength @ 200°F | 500 grams* | ASTM 3654 |
| Static Shear Strength @ 250°F | 250 grams* | ASTM 3654 |
+All “Black” tapes have a gray core and black adhesive. *Weight that 1/2 square inch will hold 10,000 minutes (7 days).
Thermal Properties
| Property | Value | Test Method |
| Minimum Temperature Resistance | −40°F | — |
| Short-Term Temperature Resistance | 248°F | — |
| Long-Term Temperature Resistance | 194°F | — |
| Recommended Application Temperature | Minimum 59°F | — |
Environmental Performance
| Property | Value | Test Method |
| Solvent Resistance | Excellent | — |
| UV Resistance | Excellent | — |
Shelf Life / Storage
| Property | Value | Test Method |
| Shelf Life | 18 months | — |
| Recommended Storage Conditions | Store in its original package and in a dry place between 39.2°F and 100.4°F | — |
- Automotive exterior trim and emblem bonding to ceramic car paints and clearcoated body panels
- Permanent attachment of components to silicone-coated and Teflon-coated automotive surfaces
- Adhesive joining of parts to powder-coated metal substrates where standard tapes lack sufficient peel adhesion
- Bonding of medium and low surface energy plastic components in automotive interior and exterior assemblies
- Durable stress-dissipating bonds on contoured or textured substrates requiring viscoelastic compliance
Common industries: Automotive, industrial manufacturing, transportation.
AFTC AM9908 is a 0.031″ automotive-grade double-sided acrylic foam tape engineered for bonding to a wide range of low surface energy (LSE) substrates commonly encountered in automotive assembly — including silicones, Teflon, ceramic car paints, clearcoats, powder coatings, and medium-to-low surface energy plastics. The construction uses an acrylic adhesive foam core faced on both sides with Acrylic Coating 66 adhesive, enclosed between two red PE liners.
At 35 lb/ft³ density, the foam is notably less dense than the standard AFTC grades (52 lb/ft³), producing a more compliant adhesive body that conforms to contoured and textured surfaces — a key contributor to the tape’s industry-leading 24 lb/in peel adhesion on difficult substrates.
Performance characteristics include very good shear strength, good inner strength, and very good long-term stability, with viscoelastic behavior that dissipates stress accumulated in the bond line over time. The tape provides excellent UV resistance and excellent solvent resistance. Application requires a minimum bond-line pressure of 14.5 psi applied in a rolling fashion.
Surface preparation follows the standard AFTC protocol: IPA for light to moderate contamination, MEK/Heptan/Acetone followed by IPA for heavily contaminated surfaces, and abrasion of raw aluminum to remove embedded processing oils. Primer 33 or Primer 101 is recommended for challenging LSE substrates and to reduce cure time from up to 72 hours to approximately 20 minutes. Shelf life is 18 months stored in original packaging between 39.2°F and 100.4°F.
What differentiates AM9908 from other AFTC grades?
AM9908 is the AFTC line's LSE-specialized automotive grade, engineered specifically for bonding to ceramic car paints, silicones, Teflon, clearcoats, and powder coatings — substrates on which standard acrylic foam tapes typically underperform. It combines a specialized Acrylic Coating 66 adhesive with a lower-density 35 lb/ft³ foam core (versus 52 lb/ft³ for standard AFTC grades) to deliver a 24 lb/in peel adhesion, notably higher than any other grade in the series.
Why is peel adhesion important when selecting this tape?
For LSE substrates, peel adhesion is the most direct measure of whether a tape can form a functional bond at all. Many standard adhesives fail outright on silicones, Teflon, and ceramic paints. AM9908's 24 lb/in peel adhesion confirms that the Acrylic Coating 66 formulation actively wets and anchors to these difficult surfaces, making it the correct choice when substrate compatibility — not just strength — is the selection driver.
What is the operating temperature range for AM9908?
AM9908 has a minimum temperature resistance of −40°F, a long-term temperature resistance of 194°F, and a short-term temperature resistance of 248°F.
Is AM9908 suitable for automotive exterior or UV-exposed environments?
The TDS rates both UV resistance and solvent resistance as Excellent, and the product description explicitly identifies automotive applications — including ceramic car paints and clearcoats — as primary use cases. No specific regulatory compliance standards are listed on the TDS for this material.
How should AM9908 be specified?
Specify grade (AM9908), thickness (0.031"), color (Black+), adhesive type (Acrylic Coating 66), target substrate (particularly noting any LSE surfaces), compliance requirements, dimensional tolerances, and finished format.
