Ayrton Oneill
When it comes to mounting a transducer on an aluminium boat, there are a few different adhesive methods that can be used. One popular method is to use a standard mounting plate and drill holes into the boat's transom to secure the plate in place. Another method is to use a PVC board and glue it to the boat with marine epoxy, which is a cheaper but still durable option. When choosing an adhesive, it is important to consider the type of boat and transducer being used, as well as the desired level of security and ease of installation.
What You'll Learn
Marine Goop for aluminium-to-aluminium adhesion
Marine Goop is a strong, single-component adhesive that can be used for a variety of marine applications. It is suitable for aluminium-to-aluminium adhesion, as well as bonding to glass, metal, canvas, wood, vinyl, and rope. It is ideal for stopping leaks in waders, wetsuits, diving masks, rafts, and air mattresses.
Marine Goop has been praised by customers for its ease of application, strength, and waterproof qualities. It is flexible, flows into gaps, and provides extreme durability. It is also UV-resistant and can be painted over for maximum UV protection.
When using Marine Goop for aluminium-to-aluminium adhesion, it is important to clean and prepare the surfaces thoroughly. This may include scuffing, cleaning with acetone, and ensuring that the aluminium is bare, as paint may affect adhesion.
Marine Goop is an effective and versatile adhesive for a range of applications, including mounting transducers on aluminium boats. Its strength and flexibility make it a popular choice for boat repairs and installations.
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Marine epoxy for bonding HDPE to aluminium
When it comes to bonding HDPE to aluminium, there are a few marine epoxies and adhesives that can be used. However, it is important to note that HDPE is designed to resist bonding, so the success of these adhesives may vary. Here are some options and instructions to consider:
Marine Goop
One option is to use Marine Goop. It is recommended to clean both the aluminium and HDPE surfaces thoroughly and to scuff up the HDPE surface with something like acetone. This method has been successful in bonding aluminium to HDPE, but it is unclear how long the bond will last under high speeds.
G-Flex by West Systems
G-Flex by West Systems is another potential option. The manufacturer recommends sanding both the aluminium and HDPE surfaces with 80-grit paper within 30 minutes of epoxy application, followed by an alcohol wipe down and flame treatment of the HDPE. They also suggest using duct tape to hold the HDPE in place for 24 hours, as pressure is not needed to hold it in place.
J-B Weld Marine Products
You could also experiment with J-B Weld marine products, such as their Plastic Bonder Structural Adhesive, Marine Weld Marine Epoxy, or WaterWeld Underwater Epoxy Putty. Be sure to follow the manufacturer's instructions and prepare the surfaces properly for the best chance of success.
Other Options
Other options include using a product like Stern Saver, which is a starboard plate that uses epoxy to bond to the boat, allowing for mechanical fasteners to be used. Additionally, some people have had success with 3M 5200, silicone, or through bolts. It is important to note that epoxies may not provide a strong enough bond, especially without proper surface preparation, so mechanical fasteners are often preferred.
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3M 4200 and 5200 sealants
When mounting a transducer to an aluminium boat, 3M 4200 and 5200 sealants are two of the most commonly recommended products. Both are marine sealants that can be used to bond to metal surfaces. However, there are some key differences between the two.
3M 4200
3M 4200 is a marine sealant that provides strong adhesion and is suitable for both aluminium and plastic surfaces. It is often used for mounting transducers to aluminium boats. 4200 is a good choice if you want a sealant that is somewhat removable, as it is not a permanent solution like 5200. It is also recommended for use on the top deck of a boat as it has a UV stabiliser, protecting it from the sun's rays.
3M 5200
3M 5200 is a high-strength, permanent adhesive sealant made specifically for the marine market. It is suitable for bonding to various materials, including wood, fiberglass, gelcoat, plastics, and metals. It forms a flexible, watertight seal that can withstand the tough conditions of the marine environment. 5200 is ideal for applications above and below the waterline and can take up to four days to fully cure.
When choosing between 3M 4200 and 5200 for mounting a transducer to an aluminium boat, consider the level of permanence desired. If you may need to remove the transducer in the future, 4200 is a better option. However, if you are looking for a permanent solution, 5200 will provide a strong and durable bond.
In addition to selecting the appropriate sealant, it is important to properly prepare the surfaces to be bonded. This includes cleaning and, in some cases, sanding or treating the surfaces to ensure a strong adhesion.
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Marine-grade silicone for securing mounting plates
Marine-grade silicone is a suitable adhesive for securing mounting plates to aluminium boats. It is important to use an adhesive that is designed for submersion and one that will not react with the aluminium.
Marine-grade silicone is a good option for those who may want to remove the mounting plates in the future, as it is not a permanent solution like epoxies. When applying marine-grade silicone, it is important to clean and sand the aluminium surface to ensure a strong bond. Additionally, drilling shallow holes in the mounting plate will provide extra grip for the silicone to hold on to.
Some specific products that can be used include 3M 4200 and 5200, GE Marine Silicone, and Loctite PL Marine Fast Cure. These products are designed for marine use and will provide a strong and durable bond.
It is also recommended to use stainless steel screws in conjunction with the silicone for added security. This method ensures that the mounting plate will not come off, even if the glue fails. The screws can be sealed with marine-grade silicone to create a watertight seal.
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Marine epoxy for PVC board adhesion
Marine epoxy is a great option for projects that require strong adhesion and frequent exposure to water. When choosing an epoxy, it's important to consider the materials you'll be working with and select a product that suits your specific needs.
For PVC board adhesion, there are a few options available. While some sources suggest that PVC does not bond well with epoxy, others recommend using a marine-grade epoxy for a stronger adhesion. It's important to prepare the surface by sanding and cleaning it before applying the epoxy.
- Marine-grade epoxy resin: This type of epoxy is designed for projects that will be exposed to water and can provide strong adhesion and durability. It is important to follow the instructions and take the necessary safety precautions when working with epoxy resin.
- Polyester resin: This is another option for bonding PVC boards. While it may not be as strong or durable as epoxy resin, it can still provide adequate adhesion and is more affordable.
- J-B Weld 8237 PlasticWeld Plastic Repair Epoxy Putty: This product is specifically designed for bonding plastics and is available on Amazon. It comes in a 2-ounce package and offers a strong and permanent solution.
- Gorilla Epoxy Ultimate: This waterproof epoxy is known for its permanent bond and is available on Amazon. It comes in a 0.85-ounce syringe and can be used for various applications, including PVC board adhesion.
- Loctite Epoxy Marine: This marine-grade epoxy is also available on Amazon and comes in a 0.85-fluid ounce syringe. It is designed for strong adhesion in marine environments.
- PC-Products PC-11 Epoxy Adhesive Paste: This is another marine-grade epoxy paste that can be used for bonding PVC boards. It comes in two cans, each containing 1 pound of product, and is known for its strong bonding capabilities.
- Clear Epoxy Glue Waterproof: This 2-part epoxy resin is specifically mentioned for use with PVC and is available on Amazon. It creates a heavy-duty bond and comes in a 1.76-ounce package.
When working with marine epoxy, it's important to follow the instructions and take the necessary safety precautions. Make sure to wear gloves and eye protection, and work in a well-ventilated area. Additionally, pay attention to the mixing instructions, as the ratio of resin to hardener is crucial for achieving the desired results.
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Frequently asked questions
Marine Goop, 3M 5200, and Marine Tex G-Flex are some of the best adhesives for mounting a transducer on an aluminum boat.
Using an adhesive to mount a transducer on an aluminum boat can be advantageous as it does not require drilling holes into the boat, which some people may cringe at the thought of. Additionally, adhesives such as Marine Goop and 3M 5200 are known to create a strong bond, ensuring that the transducer stays securely in place.
When choosing an adhesive for mounting a transducer on an aluminum boat, it is important to consider the durability, adhesion strength, and suitability for the specific materials being bonded. It is also essential to follow the manufacturer's instructions and properly prepare the surfaces to ensure a strong and long-lasting bond.
