AFTC AM9306
AFTC AM9306 is a 0.025″ thick, double-sided closed cell acrylic foam tape designed for structural bonding of steel, aluminum, and select plastics in vehicle manufacturing applications. It delivers 90° peel adhesion of 16 lb/in, dynamic shear strength of 95 lb/in², and tensile strength of 98 lb/in², and operates across a temperature range of -40°F to 248°F long-term and 374°F short-term. The tape is formulated to absorb differential thermal expansion between dissimilar bonded materials and provides good plasticizer resistance when used in combination with a primer.
Key Properties
- 90° Peel Adhesion: 16 lb/in (ASTM D3330)
- Dynamic Shear Strength: 95 lb/in² (ASTM D1002)
- Tensile Strength: 98 lb/in² (ASTM D897)
- Temperature Resistance: -40°F min / 248°F long-term / 374°F short-term
- Carrier / Liner: Uncoated acrylic foam core / Red PE liner
- Total Tape Thickness: 0.025″ ±15%
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Thickness | 0.025″ ±15% | — |
| Color | Gray | — |
| Material / Substrate | Uncoated Acrylic Foam | — |
| Core | Acrylic Adhesive Foam Core | — |
| Adhesive Type | Closed Cell Acrylic | — |
| Adhesive System | Permanent Adhesive | — |
| Adhesive Side | Double Sided Adhesive | — |
| Liner | Red PE liner | — |
| Density | 52 lb/ft³ | — |
| Cell Structure | Closed Cell | — |
Adhesion Properties
| Property | Value | Test Method |
| 90° Peel Adhesion | 16 lb/in | ASTM D3330 |
| Dynamic Shear Strength | 95 lb/in² | ASTM D1002 |
| Tensile Strength | 98 lb/in² | ASTM D897 |
| Static Shear Strength @ 72°F | 1,500 grams* | ASTM 3654 |
| Static Shear Strength @ 150°F | 750 grams* | ASTM 3654 |
| Static Shear Strength @ 200°F | 750 grams* | ASTM 3654 |
| Static Shear Strength @ 250°F | 750 grams* | ASTM 3654 |
| Static Shear Strength @ 350°F | 750 grams* | ASTM 3654 |
*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 | 374°F | — |
| Long-Term Temperature Resistance | 248°F | — |
| Recommended Application Temperature | Minimum 59°F | — |
Environmental Performance
| Property | Value | Test Method |
| UV Resistance | Excellent | — |
| Solvent 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 | — |
- Structural bonding of dissimilar metals in automotive body assembly where differential thermal expansion must be accommodated
- Attachment of glass and glass/epoxy panels to steel or aluminum vehicle structures
- Bonding of anodized and coated aluminum components to vehicle frames and attachment points
- Joining of galvanized or stainless steel parts in vehicle manufacturing assemblies
- Structural tape bonding on vehicle components requiring primer-assisted plasticizer-resistant bonds
Common industries: Automotive manufacturing, transportation, specialty vehicle assembly.
AFTC AM9306 is a 0.025″ thick grade in the AM93 series of high-performance double-sided acrylic foam tapes, designed for bonding dissimilar materials — including steel, aluminum, glass, glass/epoxy, and coated or anodized metals — in modern vehicle manufacturing. The acrylic adhesive foam core is closed cell and carries a permanent adhesive system on both faces, protected by a red PE liner.
The tape is capable of absorbing differential thermal expansion between the two bonded substrates, making it well suited for mixed-material assemblies subject to thermal cycling.
The tape maintains high impact resistance at sub-zero temperatures and exhibits excellent UV resistance and excellent solvent resistance per the TDS. Static shear strength is 1,500 grams per 1/2 square inch held for 10,000 minutes (7 days) at 72°F, and 750 grams at temperatures from 150°F through 350°F.
Surface preparation is critical: substrates should be cleaned with IPA for light to moderate contamination, or MEK, Heptane, or Acetone for heavy contamination followed by an IPA wipe. Raw aluminum must be abraded prior to bonding. A minimum bond-line pressure of 14.5 psi must be applied. Full end-strength is reached within 72 hours; use of H-O Products Primer 33 or Primer 101 reduces this to approximately 20 minutes.
Minimum recommended application temperature is 59°F.
What differentiates AFTC AM9306 from adjacent grades in the AM93 series?
AFTC AM9306 is 0.025" thick and delivers a dynamic shear strength of 95 lb/in² and tensile strength of 98 lb/in². Compared to the thinner AM9304 (0.016"), it offers greater gap-filling capability and higher peel adhesion (16 lb/in vs. 15 lb/in). Compared to thicker grades, it provides a higher strength profile while maintaining a low bondline thickness suited for precision assemblies.
Why is peel adhesion important when selecting a structural bonding tape for automotive applications?
Peel adhesion determines whether the tape maintains bond integrity when the assembly is subjected to flexing, vibration, or peeling forces — all common in vehicle structures. A tape with insufficient peel adhesion can initiate delamination at joints, particularly at substrate edges and contours. AFTC AM9306 delivers 16 lb/in at 90° peel, providing reliable edge retention across the range of substrates used in vehicle manufacturing.
What is the operating temperature range for AFTC AM9306?
AFTC AM9306 has a minimum temperature resistance of -40°F, a long-term temperature resistance of 248°F, and a short-term temperature resistance of 374°F, as listed on the TDS.
Is AFTC AM9306 suitable for automotive manufacturing environments?
Yes. AFTC AM9306 is specifically designed for bonding steel, aluminum, and select plastics in modern vehicle manufacturing. It provides good plasticizer resistance in combination with a primer and maintains high impact resistance at sub-zero temperatures. No additional regulatory compliance standards are stated on the TDS.
How should AFTC AM9306 be specified?
Specify grade (AFTC AM9306), thickness (0.025"), compliance requirements, dimensional tolerances, adhesive side (double), liner type (red PE liner), and finished format.
