Permabond TA4550 Nylon Bonding MMA Acrylic Adhesive

Product Name

Permabond TA4550 Nylon Bonding MMA Acrylic Adhesive

Brief Description

Permabond TA4550 is a 2-part, 2:1 low-odor, thixotropic MMA (Methyl Methacrylate) acrylic adhesive specifically engineered for the structural bonding of challenging nylons (polyamides) without the need for primers or additional surface treatment. It provides excellent adhesion to a wide range of other plastics, metals, and composites, offering high strength, toughness, and resistance to impact and vibration.

Popular Applications & Uses

- Assembling automotive parts- Sports equipment- Industrial components- EV battery pack sealing- 3D printed nylon- Personal electronics- Sensors- Composite components- Bonding dissimilar substrates where thermal expansion and contraction could be an issue- Vertical applications due to its non-slumping nature

Industries that Commonly Use It

- Aerospace/Defense- Automotive Service/Repair- Construction/ Building Services- General Manufacturing- Metal Fabrication- Plastic Fabrication- Transportation/ Specialty Vehicle

Special and Unique Features

- Specifically engineered for structural bonding of difficult nylons (polyamides)- Requires no primers or additional surface treatment (such as plasma or abrasion)- Low odor formulation- Thixotropic (thick non-sagging gel) for optimized flow control and suitability for vertical applications- Provides high toughness, impact, and vibration resistance- Fast cure at room temperature- Creates structural bonds strong enough to cause substrate failure in nylon itself- Non-flammable, aiding in storage and transport- Excellent adhesion to dissimilar substrates

Key Properties

- Chemical Composition: Acrylic (MMA)- Parts: 2-part- Mix Ratio: 2:1- Mixed Color: Dark green/grey- Viscosity @ 25°C: 100,000 mPa.s (cP) Thixo paste- Fixture Time: Approximately 5 minutes- Full Cure: 24 hours- Cure Method: Room temperature cure- Shear Strength (Nylon/PA 6): >6 N/mm² (>870 psi) (Substrate Failure)- Shear Strength (Mild Steel): 24 N/mm² (3500 psi)- Temperature Resistance: Good

Surface Compatibility

- Nylon/Polyamides (Nylon 6 & Nylon 12)- Most plastics (e.g., PBT, PMMA, PVC, PC, Acrylic, Polyesters, ABS, Vinyls)- Metals (e.g., Carbon Steel, Stainless Steel, Aluminum, Mild Steel, Copper, Galvanized Steel)- Composites (e.g., GRP, CFRP, FRP, Fiberglass)- Stone- Wood- Ceramics- Rock- Concrete- Glass

Known backups / known substitutes

- Permabond TA4660 (discontinued, TA4550 is the official direct replacement)- Other MMA acrylic adhesives for general plastic and metal bonding (e.g., Infinity Bond MMA 920, Infinity Bond MMA 310, Permabond TA4207)- Epoxy adhesives (e.g., Araldite 2015-1, Araldite 2012) for general structural bonding, though typically not optimized for nylon without surface preparation.

Comparison Note

Permabond TA4550 is particularly distinguished by its exceptional capability to bond challenging nylons (polyamides) without the need for primers or extensive surface preparation, which is a significant advantage given nylon's low surface energy and hygroscopic nature. It offers a rapid room-temperature cure, high toughness, and superior resistance to impact and vibration, making it an ideal and robust solution for structural applications, especially when bonding nylon to itself or to dissimilar materials. While other MMA adhesives are available for various plastics and metals, TA4550's specialized formulation for nylon bonding is its primary differentiator.