
J-B Weld offers a range of adhesive products for repairs, including the PlasticBonder, which is a quick-setting, two-part urethane adhesive system. It is designed to provide strong and lasting repairs on a variety of materials, including thermoplastics, coated metals, and concrete. While the product's conductive properties are not explicitly mentioned, it is known for its strength and ability to create a permanent bond. The PlasticBonder has a tensile strength of 3770 PSI and is available in black or tan colors. It sets in 15 minutes and can be sanded after 30 minutes. J-B Weld also offers other products like the original J-B Weld Twin Tubes, which are suitable for repairs on metal and plastic, and the PlasticWeld Syringe, a two-part adhesive and epoxy filler system that can bond various surfaces such as metal, composites, and fiberglass.
| Characteristics | Values |
|---|---|
| Conductive | No information found |
| Adhesive system | Two-part urethane |
| Mixing ratio | 1:1 |
| Setting time | 15 minutes |
| Curing time | 30 minutes |
| Tensile strength | 3770 PSI |
| Cured colour | Tan or black |
| Surfaces it can be used on | Thermoset, carbon fibre composites, thermoplastics, coated metals, concrete, most rigid plastics (PVC, CPVC) |
| Surfaces it should not be used on | Flexible plastics, polypropylene, polyethylene |
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What You'll Learn

PlasticBonder™ is a two-part urethane adhesive system
PlasticBonder™ has a 1:1 mixing ratio, sets in 15 minutes, and can be sanded after 30 minutes. It includes a stir stick and a mixing tray, as well as a resealable no-waste cap. The product is available in 0.85 fl oz (25 ml) syringes.
To use PlasticBonder™, first clean the surface area of dirt, grease, oil, paint, or loose debris. For best results, use a detergent or degreaser to clean the surface, then roughen the surface with a file or coarse sandpaper to provide the best repair. After removing the replaceable cap, press down on the plunger and squeeze equal amounts onto a disposable surface and mix thoroughly. Apply with the appropriate tool in an even coat, weld bead, or extruded shape as needed.
PlasticBonder™ is a versatile and easy-to-use adhesive system that provides strong and permanent repairs on a variety of materials. It is quick-setting and can be sanded, making it a convenient option for various applications.
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It provides strong and lasting repairs
J-B Weld's PlasticBonder is a quick-setting, two-part urethane adhesive system that provides strong and long-lasting repairs. It works on thermoset, carbon fibre composites, thermoplastics, coated metals, concrete, and more. It has a tensile strength of 3770 PSI and sets to a hard, permanent bond. It can be used on most rigid plastics (PVC, CPVC) but is not recommended for flexible plastics, polypropylene, and polyethylene.
PlasticBonder has a set time of 15 minutes and cures in 30 minutes. It is available in tan or black colours. The product comes with a stir stick and a mixing tray, and it has a resealable no-waste cap. It is easy to use and can be applied with the appropriate tool in an even coat, weld bead, or extruded shape as needed.
To achieve the best repair results, it is recommended to clean the surface area of dirt, grease, oil, paint, or loose debris before using PlasticBonder. Using a detergent or degreaser to clean the surface and then roughening it with a file or coarse sandpaper can provide an even better repair. After preparing the surface, remove the replaceable cap and press down on the plunger to squeeze equal amounts of the product onto a disposable surface for mixing.
PlasticBonder has been used successfully by customers for various repair projects, including motorcycle fairings, scooter body parts, and a cracked front fender. Its strength and versatility make it a reliable choice for strong and lasting repairs on a wide range of materials. With its quick set and cure times, PlasticBonder offers a convenient and effective solution for many repair needs.
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It works on thermoset, carbon fibre composites, thermoplastics, coated metals, concrete and more
J-B Weld's PlasticBonder is a quick-setting, two-part urethane adhesive system that works on a variety of materials, including thermoset, carbon fibre composites, thermoplastics, coated metals, concrete, and more.
Thermoset, or thermosetting polymer, is a polymer that hardens or cures irreversibly into a permanent shape. This is achieved by applying heat or radiation, which creates extensive cross-linking between polymer chains, resulting in a strong and insoluble polymer network. Thermosets are generally stronger than thermoplastics due to their three-dimensional network of covalent bonds, which makes them highly resistant to heat degradation.
Carbon fibre composites are made by combining carbon fibres with a matrix, typically a polymer, metal, carbon, ceramic, or a combination of these materials. These composites are known for their high strength-to-weight ratio, stiffness, and fatigue performance. They are commonly used in aircraft and helicopter structures, jet engine parts, and automotive applications due to their lightweight and superior mechanical properties.
Coated metals are metals that have been treated with a thin protective layer, such as paint or powder coatings. These coatings enhance the metal's functionality and extend its life by improving properties such as electrical conductivity, wear resistance, and aesthetic appeal. Coated metals can be found in a wide range of applications, from automotive to aesthetic products.
Concrete, another material that PlasticBonder works on, is a composite material often combined with carbon fibre composites to enhance its chemical stability and oxidation resistance.
With its ability to bond to a diverse range of materials, PlasticBonder offers a versatile solution for strong and lasting repairs.
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$5.97 $7.48

PlasticBonder™ has a set time of 15 minutes and cures in 30 minutes
While I cannot confirm whether JB Weld Plastic Bonder is conductive, I can provide information on its set and cure times.
PlasticBonder™ is a quick-setting adhesive system that provides strong and lasting repairs on a variety of materials, including thermoset, carbon fibre composites, thermoplastics, coated metals, and concrete. It is available in tan or black and has a set time of 15 minutes and a cure time of 30 minutes. This means that after 15 minutes, the adhesive will have set and hardened, and after 30 minutes, it will have fully cured and reached its maximum strength. During the curing process, the adhesive will continue to strengthen and develop its final bond.
The set and cure times of PlasticBonder™ are significantly faster than other JB Weld products, such as Original, MarineWeld, and ClearWeld, which have set times ranging from 4 to 15 minutes and cure times ranging from 1 to 24 hours. This makes PlasticBonder™ a convenient choice for quick repairs and projects.
It is important to note that the set and cure times of PlasticBonder™ can be affected by environmental conditions, such as temperature and humidity. In ideal conditions, the adhesive will consistently set in 15 minutes and cure in 30 minutes. However, in extreme temperatures or high humidity, these times may vary slightly.
To achieve the best results with PlasticBonder™, it is recommended to follow the instructions for surface preparation and application. Before applying the adhesive, the surface should be cleaned of any dirt, grease, oil, paint, or debris. Using a detergent or degreaser can help ensure a clean surface. Additionally, roughening the surface with a file or coarse sandpaper can enhance the adhesive's bond. Once applied, PlasticBonder™ can be sanded after 30 minutes to create a smooth finish.
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It is available in tan or black
The J-B Weld Plastic Bonder Syringe is available in tan or black. It is a quick-setting, two-part urethane adhesive system that provides strong and lasting repairs. It works on thermoset, carbon fibre composites, thermoplastics, coated metals, concrete, and more.
The Plastic Bonder Syringe has a 1:1 mixing ratio, sets in 15 minutes, and can be sanded after 30 minutes. It has a tensile strength of 3770 PSI and cures to a hard, permanent bond. The product comes with a stir stick, a mixing tray, and a resealable no-waste cap.
The tan-coloured Plastic Bonder Syringe has the SKU 50133, while the black-coloured version has the SKU 50139. Both products are priced at $8.99.
The J-B Weld website provides detailed instructions on how to use the Plastic Bonder Syringe. It is recommended to clean the surface area of dirt, grease, oil, paint, or loose debris before applying the adhesive. For best results, use a detergent or degreaser to clean the surface, then roughen the surface with a file or coarse sandpaper to provide a better repair. After removing the replaceable cap, press down on the plunger and squeeze equal amounts onto a disposable surface, mixing thoroughly. Apply with the appropriate tool in an even coat, weld bead, or extruded shape as needed.
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Frequently asked questions
No, it is not conductive.
JB Weld Plastic Bonder sets in 15 minutes.
It cures in 30 minutes.
The tensile strength is 3770 PSI.











































