AFTC 5312
AFTC 5312 is a 0.079″ thick, double-sided closed cell acrylic foam tape in the SilverTape family, designed for bonding a wide variety of materials with high surface energy. It delivers 90° peel adhesion of 22 lb/in, dynamic shear strength of 78 lb/in², and tensile strength of 71 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 is cited on the TDS as a replacement for mechanical fasteners including rivets, screws, spot-welds, and liquid adhesives.
Key Properties
- 90° Peel Adhesion: 22 lb/in (ASTM D3330)
- Dynamic Shear Strength: 78 lb/in² (ASTM D1002)
- Tensile Strength: 71 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: 0.079″ ±10%
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Thickness | 0.079″ ±10% | — |
| 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 | 55 lb/ft³ | — |
| Cell Structure | Closed Cell | — |
Adhesion Properties
| Property | Value | Test Method |
| 90° Peel Adhesion | 22 lb/in | ASTM D3330 |
| Dynamic Shear Strength | 78 lb/in² | ASTM D1002 |
| Tensile Strength | 71 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 65°F | — |
Environmental Performance
| Property | Value | Test Method |
| UV Resistance | Excellent | — |
| Solvent Resistance | Excellent | — |
| Water 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 40°F and 95°F | — |
- Structural bonding of glass and glass/epoxy panels to metal frames as a replacement for mechanical fasteners including rivets, screws, and spot-welds
- Bonding of coated and anodized aluminum components requiring absorption of differential thermal expansion
- Attachment of stainless steel and galvanized steel parts in assemblies where liquid adhesives are being replaced with a tape solution
- Exterior or moisture-exposed bonding applications requiring excellent water resistance in addition to UV and solvent resistance
- 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, transportation.
AFTC 5312 is a 0.079″ thick white grade in the SilverTape family of high-performance double-sided acrylic foam tapes, designed for bonding high surface energy materials — including glass, glass/epoxy, stainless steel, galvanized steel, anodized steel, and coated aluminum.
The TDS explicitly identifies this grade as suitable for replacing mechanical fasteners such as rivets, screws, spot-welds, and liquid adhesives, distinguishing it as a structural bonding solution in fabrication and assembly contexts. 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 exhibits excellent UV resistance, excellent solvent resistance, and excellent water resistance per the TDS — the last being a property listed on this grade that is not present on all SilverTape grades. 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 65°F.
What differentiates AFTC 5312 from AFTC 5313, the adjacent gray grade at similar thickness?
AFTC 5312 is 0.079" thick, white, with a density of 55 lb/ft³, a minimum application temperature of 65°F, and storage conditions of 40°F to 95°F. AFTC 5313 is 0.078" thick, gray, with a density of 54 lb/ft³, a minimum application temperature of 59°F, and storage conditions of 39.2°F to 100.4°F. Both share the same adhesion values. Additionally, AFTC 5312 lists excellent water resistance on the TDS, which is not listed for AFTC 5313. AFTC 5312 also explicitly identifies fastener-replacement as a typical application.
Why is peel adhesion important when selecting a structural bonding tape for fastener replacement?
In fastener-replacement applications, peel adhesion determines whether the tape bond can withstand the same edge-lifting and flexural forces that mechanical fasteners resist through clamping. A tape that loses peel adhesion at bond edges will allow progressive delamination and assembly failure. AFTC 5312 delivers 22 lb/in at 90° peel, providing the durable edge retention required for replacing rivets, screws, and spot-welds on high surface energy substrates.
What is the operating temperature range for AFTC 5312?
AFTC 5312 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 5312 suitable for exterior or moisture-exposed environments?
Yes. The TDS rates AFTC 5312 as having excellent water resistance in addition to excellent UV and solvent resistance, supporting use in exterior and moisture-exposed bonding applications. No specific regulatory compliance standards are stated on the TDS.
How should AFTC 5312 be specified?
Specify grade (AFTC 5312), thickness (0.079"), color (white), compliance requirements, dimensional tolerances, adhesive side (double), liner type (red PE liner), and finished format.
