Ryms on the PVC boat: competent installation and strengthening of the transom

Buying an inflatable boat is just the first step in the world of water-motor tourism. Often, the basic equipment from the manufacturer seems insufficient, especially if you plan long trips to the water or fishing in difficult conditions. squirt-boltThey allow you to securely anchor, to be attached to the berth or to install additional equipment that is not provided by the standard design.

The need for additional mounting points arises for many owners, since regular liner rings are often inconveniently located or their number is limited. bolt-bolt It can withstand heavy loads, ensuring the safety of the crew and the safety of the vessel, but improper installation can lead to depressurization of the cylinder or even the removal of the element under load, which on the water can be dangerous.

In this article, we will discuss in detail what types of crims exist, how to choose the right place for their installation and, most importantly, how to reliably strengthen the transom or the side of the boat. You will learn about the nuances of working with PVC fabric, the choice of glue and the sequence of actions that ensures the longevity of the result. It is critically important to understand that the installation of the river on a single layer fabric without an internal reinforcement bank is permissible only for small loads, for example, for fastening the save-end rope.

Selection of the type of rim bolt and materials

The first step in any tuning is choosing the right equipment. The market offers many options, but not all of them are suitable for inflatable boats. The main focus should be on the material from which the fastener is made. stainless steel This alloy has a high corrosion resistance and perfectly tolerates contact with salt water, which is especially important for sea trips.

Brass diamonds are aesthetically pleasing, often golden, but require more care. Over time, brass can oxidize with greenish coatings that can be easily removed by polishing. There are also silumin models, but they are used in critical areas, such as anchor ducks or anchor-fab anchor points. categorically not recommended because of the fragility of the alloy under impact loads.

An important parameter is the design of the squirrel itself, and for PVC boats, bolts with a wide pressing flange or so-called "ears" are most often used.

⚠️ Warning: Avoid using sharp edged or burrs at the point of contact with rubber or PVC. When vibrating or winding strongly, the sharp edge may RUB the tank material, resulting in injury.

Also pay attention to the length of the threaded part: it should be sufficient to pass through the gain, the trawl and the washer, but not to protrude excessively inside the boat, creating a risk of injuries to the legs.

• 🔩 Stainless steel AISI 316 - the ideal choice for any operating conditions, maximum strength and durability.
• 🔸 brass - a good option for fresh water bodies, requires periodic polishing to preserve the appearance.
• 🚫 Silumin and zinc alloys - suitable only for decorative purposes or fastening of light objects such as fishing rod holders, but not for anchors.

Preparation of the transone and creation of reinforcement

The most common scenario is to place a squirrel on the PVC boat's tray, and that's where you attach the anchor cable when you're inertia or the mooring ends, and the problem is that the regular squirrel is often a plywood board, with no internal metal insert at the intended drilling site, and mounting the squirrel directly into the plywood will cause the squirming of the timber to just rip out when you pull.

For reliable fixation, you need to manufacture and install magnificationIt's a 3-5 mm thick metal plate (usually made of aluminum or stainless steel) that replicates the shape of the base of the redhead, and the plate is mounted on the inside of the transom, and the bolt passes through the boat's skin, the plywood and this plate, and when the nut is tightened (or the bolt itself, if it is screwed into the plate), a powerful sandwich is created that distributes the load over a large area.

The surface preparation process requires care, the installation site needs to be degreased and cleaned, and if the transom is covered with leather or thick cloth, a cross-shaped incision is made at the drilling point, the edges of which will then be glued to the side of the fringe.

⚠️ Attention: before drilling, be sure to make sure that at the point of exit of the drill on the back of the transom there are no structural elements that can be damaged, and that the drill will not touch the cylinders if the transom is removable.

For drilling, use sharp metal drills, as inside the transom may be a metal profile or the gain plate itself.

Once the metal plate is installed and the beam is fixed, it is critical to ensure that the joint is tightly sealed. Even if the bolt enters the transom tightly, the micro-gaps between the thread and the material, and between the stain cap and the plating, can leak moisture. Moisture trapped inside the transom causes plywood to swell and bundle, which will eventually require expensive repair or replacement of the trenchboard.

Technology of gluing the rim on board

Installation of the bolt directly on the cylinder of the boat (board) is a more complex operation that requires work with adhesive compounds. Unlike the transom, you can not just drill a hole and pinch the nut, since the air pressure in the cylinder will constantly "squeeze" the fasteners, and a puncture without high-quality sealing will be a source of permanent leakage. pygmy-pig.

The penetrator is a piece of PVC fabric of the same density as the balloon itself (usually 850 or 1100 g / m2), cut in the form of a circle or oval with a diameter of 10-15 cm. In the center of the penet, a hole is made under the bolt. The installation technology involves gluing the penet onto the board, and then gluing the smoke itself (if it has a wide base) or installing the bolt through a glued hole. Two-component polyurethane glue Here is the standard providing a monolithic connection, which is not inferior in strength to the material of the boat.

The gluing process requires a temperature and drying time, and the surface must be cleaned with abrasive (scotch bright) and degreased, and the glue is applied in two layers: the first layer is rubbed into the surface and dried to a sticky state, the second is applied before the final docking.

⚠️ Warning: Never use a chlorine-based (yellow) Moment glue for responsible pressure nodes, which provides an elastic but not strong enough seam that can float under constant load and air pressure.

• 🧴 Degreasing - mandatory step, use acetone or a special degreasing for PVC.
• ⏳ Exposition time Follow the instructions strictly, usually 10-20 minutes between the layers.
• 🌡️ Temperature conditions gluing is better carried out at a temperature of 20-25 ° C, cold glue is not polymerized correctly.

Comparison of fastening methods

The choice of the method of attachment depends on the expected load and design of your boat. Below is a comparison table that will help determine the best option for your tasks. Each method has its advantages and limitations, which must be considered during the planning phase of tuning.

Parameter	Train anchorage	Glue on board (with a nickel)	Velcro straps (Velcro)
Reliability	High (if there are banks)	Medium/High	Low (for light cargo only)
Difficulty of installation	Medium (needs access inside)	High (requires gluing skills)	Low.
Risk of leakage	Minimum (if sealed)	Medium (depending on the quality of the glue)	Missing.
Appointment	Anchor, mooring, motor	Fence, awning, light anchor	Temporary anchorage, markings

Analysis of the table shows that for serious loads, such as holding a boat at anchor in the wind or excitement, the internal reinforced transom dice are preferable. The adhesive method on board is good for organizing linear fencing or attaching an awning, where the loads are more uniform. The use of Velcro straps is permissible only for fixing light objects, for example, a bag with an anchor that is not in constant tension.

Combined options are also worth mentioning: Some boat owners put not one but two rims on the edges, connecting them with a chain, which allows the anchor mounting point to vary depending on the wave height and wind direction, ensuring a more stable position of the boat in the parking lot.

Step-by-step installation instructions

Consider the process of installing a rump bolt on a transom with an internal metal can, as this is the most technically complex and common option. To work, you will need: a drill, metal drills, wrenches, PVC boat sealant (for example, a PVC sealant). 9900 or analogue), sandpaper and degreasing.

Start with the markings. Determine the exact position of the dice on the outside of the transom. Apply a metal reinforcement plate on the inside of the transom to the appropriate location and check for a match. Drill the hole through the transmolina and plywood. If there's a regular metal bar inside, drill carefully using the drill lubricant to keep the metal from overheating.

Expand the bolt hole to the diameter of the bolt. Insert the bolt from the outside, pre-stitching a sealant layer on the thread and the hat. From inside the transom to the hole and around it, also apply a sealant, then press the metal plate. Tighten the nut (or screw the bolt into the threaded plate) with effort but without fanaticism, so as not to squeeze the PVC. Exces of the sealant, protrude at the edges, you need to remove immediately, form a smooth gall.

Nuances of hermetic work

Polyurethane sealants dry for a long time — full strength gain after 24 hours. In the first hours after application, do not allow water to enter the seam. If you work in the cold season, it is better to dry in a warm room, since at temperatures below +10 ° C, polymerization can almost stop.

After drying the sealant (usually 24 hours), run a leakproofness test, pump the boat and leave it for several hours, periodically checking the installation site for bubbles (you can use a soap solution), if there are no bubbles, then the installation is successful and the assembly is ready for operation.

Operation and maintenance of fasteners

Installed pits require regular maintenance, especially if the boat is operated in salt water or stored in high humidity. periodically check the nut tightening - vibration when the engine is running or pitching can weaken the connection. weakening, tighten the fastener and renew the sealant layer if the old one cracks.

Look around the PVC cloth, and the appearance of whitish stripes or detachments indicates that the adhesive seam is beginning to break down, and then you have to deflate the boat, clear the installation site, re-glue the element, and ignore the minor defects, and you can tear off the cloth with the load, requiring a large patch.

• 🧼 Freshwater flushing After each sea trip, wash the rybeans thoroughly to wash off the salt.
• 🔍 Visual examination Before each trip, check for no corrosion or cracks.
• 🛠️ Prevention Once a season, lubricate threaded joints with graphite lubricant to prevent boiling.

Remember, safety on the water depends on small things. A well-installed rum is not just a piece of metal, it is a guarantee that you do not lose the boat on mooring and do not swim away from the anchor. A competent approach to tuning and regular maintenance will make your exits comfortable and safe.

Can I put the stain on cold weather?

It is strictly not recommended to glue PVC at temperatures below +15 ° C. The glue is not polymerized correctly, the seam will be weak and can collapse under load. If you can not bring the boat into heat, use special winter activators, but it is better to wait for the warm season.

What diameter of the red to choose for the anchor?

For anchors weighing up to 5-7 kg, a loose bolt with a diameter of 8-10 mm is enough. For heavier anchors or conditions of strong wind and current, it is better to use reinforced pits with a diameter of 10-12 mm with a wide support platform.

Do I need to drill a transom if the boat is guaranteed?

Drilling transmolets or cylinders will usually void the manufacturer's warranty. If the boat is new, try using regular liner rings or contact an authorized service center for additional equipment.

How to replace a special glue for PVC?

There is no complete replacement for two-component polyurethane adhesive (such as Texacol or Kleyberg) and the use of "moments" or epoxy resins will give a temporary result, but will not provide the necessary elasticity and strength of the seam during the deformation of the cylinder.