AFTC 5008
AFTC 5008 is a 0.03″ thick, double-sided closed cell acrylic foam tape in the SilverTape family, designed for bonding a wide variety of materials with high and medium surface energy. It delivers 90° peel adhesion of 18 lb/in, dynamic shear strength of 94 lb/in², and tensile strength of 94 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, on high surface energy substrates, provides the strongest bond the SilverTape family is able to produce.
Key Properties
- 90° Peel Adhesion: 18 lb/in (ASTM D3330)
- Dynamic Shear Strength: 94 lb/in² (ASTM D1002)
- Tensile Strength: 94 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: 0.03″ ±15%
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Thickness | 0.03″ ±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 | 54 lb/ft³ | — |
| Cell Structure | Closed Cell | — |
Adhesion Properties
| Property | Value | Test Method |
| 90° Peel Adhesion | 18 lb/in | ASTM D3330 |
| Dynamic Shear Strength | 94 lb/in² | ASTM D1002 |
| Tensile Strength | 94 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 |
*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 glass and glass/epoxy panels to metal frames on high surface energy substrates requiring maximum shear and tensile performance
- Bonding of coated and anodized aluminum components requiring absorption of differential thermal expansion at a moderate bondline thickness
- Attachment of stainless steel and galvanized steel parts on assemblies requiring a permanent, high-strength structural bond
- Medium surface energy substrate bonding in combination with H-O Products Primer 33 or Primer 101
- High-temperature-resistance bonding applications where the tape must maintain structural integrity at elevated service temperatures
Common industries: Automotive manufacturing, architectural glazing, industrial assembly, metal fabrication.
AFTC 5008 is a 0.03″ thick grade in the SilverTape family of high-performance double-sided acrylic foam tapes, designed to bond a wide variety of materials with high and medium surface energy — including glass, glass/epoxy, stainless steel, galvanized steel, anodized steel, and coated aluminum. The TDS cites toughness as the defining characteristic driving its strongest-available-bond performance on high surface energy substrates.
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’s very high temperature resistance is noted on the TDS as a key product characteristic.
The tape exhibits excellent UV resistance and excellent solvent resistance per the TDS. In combination with a primer, the SilverTape family provides excellent adhesion performance on medium surface energy materials. Static shear strength is 1,000 grams per 1/2 square inch held for 10,000 minutes (7 days) at 72°F, and 500 grams at 150°F and 200°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 5008 from thinner SilverTape grades such as AFTC 5004 and 5005?
AFTC 5008 is 0.03" thick — twice the thickness of AFTC 5004 and 5005 at 0.015". It delivers the highest dynamic shear strength in this comparison at 94 lb/in², and equal tensile strength (94 lb/in²), providing greater gap-filling capability and bond body for assemblies where the thinner grades do not fully bridge surface variation.
Why is peel adhesion important when selecting a structural bonding tape?
Peel adhesion determines whether the tape maintains contact with the substrate when the assembly is subjected to flexing, vibration, or forces that act to lift the bond line at its edges. In bonded assemblies using glass, metal, or coated substrates, inadequate peel adhesion leads to edge delamination and bond failure. AFTC 5008 delivers 18 lb/in at 90° peel, providing durable edge retention on the high surface energy substrates for which it is formulated.
What is the operating temperature range for AFTC 5008?
AFTC 5008 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 5008 suitable for high-temperature manufacturing environments?
Yes. The TDS notes very high temperature resistance as a key characteristic of AFTC 5008. It is rated to 374°F short-term and 248°F long-term. No specific regulatory compliance standards are stated on the TDS.
How should AFTC 5008 be specified?
Specify grade (AFTC 5008), thickness (0.03"), color (gray), compliance requirements, dimensional tolerances, adhesive side (double), liner type (red PE liner), and finished format.
