Discontinued - Permabond TA4660 Nylon Bonding MMA Acrylic Adhesive – 50 ml

Product Name

- Discontinued - Permabond TA4660 Nylon Bonding MMA Acrylic Adhesive – 50 ml

Brief Description

- Permabond TA4660 was a two-part, room-temperature curing MMA (Methyl Methacrylate) acrylic structural adhesive. It was specifically formulated for high-strength bonding of difficult-to-bond nylon (polyamide) surfaces, both filled and unfilled, without the need for primers or surface pre-treatment. It also formed strong bonds with various metals and composites.

Popular Applications & Uses

- Bonding nylon to nylon.- Bonding nylon to metals (e.g., aluminum, steel).- Automotive housings for underbonnet applications.- EV battery pack sealing.- Sports equipment manufacturing.- Electronics and sensor assembly.- Composite component bonding, including profiles, pultrusions, and stiffeners.- General product assembly, manufacturing, and repair involving plastics and metals.- Marine applications like bonding hulls, deck liners, and internal fixtures.

Industries that Commonly Use It

- Aerospace/Defense- Automotive Service/Repair- Construction/ Building Services- Electrical Services or Products- Energy- Fabrication- General Manufacturing- LED/Electronics- Marine- Metal Fabrication- Plastic Fabrication- Transportation/ Specialty Vehicle

Special and Unique Features

- Specifically designed for difficult-to-bond nylon surfaces (filled and unfilled).- No surface pre-treatment or priming required for nylon.- Two-part system, easy to dispense and mix via static mixing nozzle.- Full cure at room temperature.- High strength adhesion, often causing substrate failure (nylon breaks before the bond).- Toughened matrix provides high peel and impact strength.- Able to cope with differential thermal expansion and contraction between dissimilar surfaces.- Excellent chemical and thermal resistance.- Low odor.- Contains microbeads to control bond line thickness for superior performance.

Key Properties

- Adhesive Type: Two-part MMA (Methyl Methacrylate) Acrylic.- Mix Ratio: 2:1.- Cure: Room temperature.- Handling Strength: Achieved relatively quickly (e.g., 2 hours for working strength).- Full Cure: Approximately 48 hours.- Viscosity: Thixotropic paste (non-sagging gel).- Mixed Color: Dark green/grey.- Temperature Resistance: Good, can withstand higher temperatures for brief periods (e.g., paint baking).- Impact and Peel Strength: High.

Surface Compatibility

- Nylon (Polyamide) - filled and unfilled (Nylon 6, Nylon 6,6, Nylon 12).- Aluminium.- Mild Steel / Steel.- Composites (e.g., fiberglass, carbon fiber, unsaturated polyester, vinyl ester, gel-coat, sheet molding compound, epoxy).- Other plastics (e.g., ABS, acrylics, vinyls, polycarbonates, PVC).- Glass.- Wood.- Ceramic.

Known backups / known substitutes

- Permabond TA4550: This is the official Permabond-approved direct replacement for the discontinued TA4660, offering similar features and use cases, also a 2-part, 2:1 low odor, thixotropic acrylic adhesive for nylon bonding.- Infinity Bond MMA 310: A medium setting MMA adhesive that bonds nylon plastic, metals, and fiberglass, among other substrates.- Other general MMA acrylic adhesives designed for plastics and metals, such as those from the Easy-Mix RK series (RK-7100, RK-7000, RK-7200, RK-1500).- Plexus MA310 (Infinity Bond MMA 310 meets or exceeds its performance).

Comparison Note

- Permabond TA4660 was a cutting-edge structural acrylic adhesive known for its exceptional ability to bond difficult nylon surfaces without primers, achieving bonds stronger than the nylon itself. Its replacement, Permabond TA4550, continues this legacy with an updated formulation.