AFTC 5330
AFTC 5330 is a 0.025″ thick, double-sided closed cell acrylic foam tape in the SilverTape family, formulated 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 92 lb/in², and tensile strength of 107 lb/in², and operates across a temperature range of -40°F to 248°F long-term and 374°F short-term. The tape is suitable for pre-powder coating applications and is formulated to absorb differential thermal expansion between dissimilar bonded materials.
Key Properties
- 90° Peel Adhesion: 18 lb/in (ASTM D3330)
- Dynamic Shear Strength: 92 lb/in² (ASTM D1002)
- Tensile Strength: 107 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 | White | — |
| 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 | 56 lb/ft³ | — |
| Cell Structure | Closed Cell | — |
Adhesion Properties
| Property | Value | Test Method |
| 90° Peel Adhesion | 18 lb/in | ASTM D3330 |
| Dynamic Shear Strength | 92 lb/in² | ASTM D1002 |
| Tensile Strength | 107 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 at a thin 0.025″ bondline
- Bonding of coated and anodized aluminum components requiring absorption of differential thermal expansion with a white tape color
- Pre-powder coating assembly bonding where tape must survive the powder coat oven cycle before topcoat application
- Attachment of stainless steel and galvanized steel parts requiring high tensile and dynamic shear performance at thin bondline
- Medium surface energy substrate bonding in combination with H-O Products Primer 33 or Primer 101
Common industries: Industrial assembly, architectural glazing, automotive manufacturing, metal fabrication.
AFTC 5330 is a 0.025″ thick white grade in the SilverTape family of high-performance double-sided acrylic foam tapes, formulated 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 identifies toughness as the key driver of its strongest-available-bond performance on high surface energy substrates.
At 56 lb/ft³, AFTC 5330 has the highest density in this SilverTape set. The acrylic adhesive foam core is closed cell and carries a permanent adhesive system on both faces, protected by a red PE liner. The formulation is suitable for pre-powder coating applications.
The tape exhibits excellent UV resistance and excellent solvent resistance per the TDS. 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 5330 from other white SilverTape grades at similar thin thicknesses?
AFTC 5330 is 0.025" thick with a density of 56 lb/ft³ — the highest density in this SilverTape set — and delivers 107 lb/in² tensile strength and 92 lb/in² dynamic shear. It is also suitable for pre-powder coating applications, which distinguishes it from grades not rated for oven exposure. These properties make it the preferred thin-bondline white grade when maximum tensile and shear performance combined with pre-coat capability are required.
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 5330 delivers 18 lb/in at 90° peel, providing reliable edge retention on the high and medium surface energy substrates for which it is formulated.
What is the operating temperature range for AFTC 5330?
AFTC 5330 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 5330 suitable for pre-powder coating applications?
Yes. The TDS states that AFTC 5330 is suitable for pre-powder coating applications, meaning the tape can be applied to the assembly prior to the powder coat oven cycle. No additional regulatory compliance standards are stated on the TDS.
How should AFTC 5330 be specified?
Specify grade (AFTC 5330), thickness (0.025"), color (white), compliance requirements, dimensional tolerances, adhesive side (double), liner type (red PE liner), and finished format.
