A463
A463 is a 3.00 mil unsupported permanent acrylic pressure sensitive adhesive transfer tape delivered on a 76# moisture-stable poly-coated kraft liner. Formulated for bonding to low surface energy (LSE) substrates and foams — including polyolefins and both ether- and ester-based polyurethanes — it delivers 80 oz/in peel adhesion, 88 oz/in tack, and 168 hours of shear adhesion at 2.2 psi. The service temperature range extends from −40°F to 250°F, and the adhesive includes a biocide additive for enhanced microbial resistance.
Key Properties
- Peel Adhesion: 80 oz/in (PSTC-101)
- Tack: 88 oz/in (ASTM D2979)
- Shear Adhesion @ 2.2 psi: 168 hrs (PSTC 107)
- Maximum Service Temperature: 250°F
- Liner: 76# moisture stable poly-coated kraft
- Total Thickness: 3.00 mils (PSTC-133)
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Total Thickness | 3.00 mils | PSTC-133 |
| Adhesive Type | Acrylic | — |
| Adhesive System | Permanent Adhesive | — |
| Adhesive Side | Single Sided | — |
| Color | Clear | — |
| Liner | 76# moisture stable poly-coated kraft | — |
Adhesion Properties
| Property | Value | Test Method |
| Peel Adhesion | 80 oz/in | PSTC-101 |
| Tack | 88 oz/in | ASTM D2979 |
| Shear Adhesion @ 2.2 psi | 168 hrs | PSTC 107 |
Thermal Properties
| Property | Value | Test Method |
| Minimum Service Temperature | −40°F | — |
| Maximum Service Temperature | 250°F | — |
Environmental Performance
| Property | Value | Test Method |
| Microbial Resistance | Enhanced via biocide additive | — |
- Lamination and bonding of polyolefin substrates including polyethylene and polypropylene components
- Permanent adhesive attachment of ether-type and ester-type polyurethane foams
- Foam-to-substrate bonding in applications requiring quick tack and fast wet-out
- Adhesive lamination in high-humidity or microbially active environments where biocide-enhanced adhesive is required
- High-temperature LSE bonding applications operating up to 250°F
Common industries: Foam converting, industrial manufacturing, HVAC, automotive, medical device converting.
A463 is an unsupported permanent acrylic pressure-sensitive adhesive transfer tape designed for laminating and bonding applications on a wide range of low surface energy substrates and foams. Without a carrier, the tape consists entirely of adhesive mass delivered on a 76# moisture-stable poly-coated kraft release liner.
The moisture-stable liner resists curl and dimensional shift in variable humidity, supporting reliable converting and die-cutting performance. Target substrates include polyolefins (polyethylene, polypropylene) and both ether-type and ester-type polyurethane foams, applications where standard acrylic adhesives typically lack adequate surface compatibility.
The adhesive provides excellent peel, shear, and tack performance, with quick tack and fast wet-out on difficult surfaces. Shear adhesion of 168 hours at 2.2 psi confirms strong resistance to static load creep, while the 88 oz/in tack value supports rapid initial grab during assembly.
A biocide additive enhances microbial resistance, making the adhesive suitable for applications with elevated humidity, organic contamination exposure, or environments where microbial growth on the bond line is a concern. Service temperature extends from −40°F to 250°F — the upper range exceeds most general-purpose transfer tapes, supporting use in thermally demanding assemblies.
What differentiates A463 from general-purpose acrylic transfer tapes?
A463 is an unsupported acrylic formulated for difficult LSE substrates — polyolefins and polyurethane foams — with three additional differentiators: an elevated 250°F maximum service temperature, a biocide additive for microbial resistance, and a moisture-stable liner that resists humidity-induced curl during converting. These characteristics set it apart from both standard acrylic transfer tapes and LSE acrylics without environmental or thermal enhancements.
Why is peel adhesion important when selecting this tape?
On LSE substrates, peel adhesion is the primary measure of whether the adhesive can form a functional bond — standard acrylics often fail outright on polyolefins and PU foams. A463's 80 oz/in peel adhesion, combined with 88 oz/in tack and 168 hours of shear hold at 2.2 psi, confirms that the formulation achieves durable bonding on these difficult surfaces.
What is the service temperature range for A463?
A463 has a service temperature range of −40°F to 250°F.
Is A463 suitable for humid or microbially active environments?
Yes. The adhesive includes a biocide additive for enhanced microbial resistance, and the moisture-stable liner resists humidity-induced dimensional change during storage and converting. No specific regulatory compliance standards are listed on the TDS for this material.
How should A463 be specified?
Specify grade (A463), thickness (3.00 mils), target substrate (particularly noting any LSE surfaces or polyurethane foam types), compliance requirements, dimensional tolerances, and finished format.
