Installing a fixed anchor bolt is one of the first tuning steps that a new inflatable boat owner takes after buying. The manufacturer's customized rings are often too small to be easily anchored or not aligned with the specifics of your fishing. Incorrect installation Additional fasteners can damage the cylinder or, worse, to the loss of anchor at the most inopportune time.
In this article, we will discuss in detail how to choose the optimal place for installation, what glue to use for PVC And the fabrics, and how to avoid the typical installation errors, the well-installed bolt can withstand heavy loads without deforming the side, and it lasts for years, providing water safety.
Before you take on the glue, you need to clearly understand the difference between the nose and aft attachment. Nose pom serves to anchor when drifting or fishing in a plumb, while feed It is often used to fix boats on the current (anchor stretching) or tow them, and you can't confuse their functionality when mounting, because the load vectors will be different.
Choosing the optimal place to install a rim bolt
Mounting point determination is a critical step in the water stability and crew safety. If you plan to use anchor stretching, the stern rim should be strictly on the diametrical axis of the boat, so that when the cable is stretched, the boat does not turn on the side to the wave. Shifting even 5-10 cm from the center can lead to permanent rolling and discomfort.
The nose is different, and it's not just the central location that matters, but the height of the installation is relative. waterlineToo low-mounted crowbar will draw water constantly, creating splashes and increasing resistance, too high, changing the angle of attack of the anchor rope, which will reduce the holding capacity of the anchor on soft ground.
⚠️ Attention! Never glue a bolt to the curved part of the balloon near the transom itself or in the nasal curvature area. The adhesive and pad material only work on flat areas of tissue. The bending creates a constant strain on the detachment, which will eventually destroy the connection.
It is also important to consider the presence of internal design elements, such as stringer The fastener should not interfere with the installation of equipment or the movement of the fisherman inside the cockpit, the optimal area for the nose dip is the central seam between the cylinders or a special area, if it is provided by the design of the boat.
Selection of materials: rim bolts and platforms
The market offers many options for fasteners, but not all are suitable for inflatable boats. foundation (platform), which distributes the load on a large area of PVC fabric. Point press, characteristic of bolts with a narrow washer, quickly wipe the material or cause its deformation under tension.
The fabrication material also plays a key role. Stainless steel (AISI 304 or AISI 316) is an ideal solution that does not corrosion in salt water. Brass or zinc-coated products will oxidize over time, and rust can damage the appearance of the boat, although this will not soon damage functionality. Plastic rump bolts are only acceptable for lightweight inflatable boats with low payload capacity.
The shape of the site, which can be round, oval or rectangular, is a special consideration, and rectangular and oval shapes are often more convenient for sticking to flat areas between cylinders, because they replicate the geometry of the seam. Round shapes are versatile, but require more careful alignment.
- 🔩 Metallic rump bolts - high strength, durability, suitable for heavy anchors and powerful motors.
- 🛡️ Plastic reinforced They do not rust, are cheaper, but have a lower limit of the load on the break.
- 📐 Form of basis Choose a wide contact area (at least 40-50 mm in diameter) to evenly distribute the force.
When buying a set, make sure that it includes not only the bolt itself, but also the nut with the grower The grover is needed to prevent the nut from unscrewing itself from the vibration that inevitably occurs when the engine is running or on the wave.
Surface preparation and glue selection
The quality of the gluing depends on the preparation of the surface. PVC fabric, from which the boats are made, often has a protective layer or contamination that prevents adhesion. Before starting work, the surface of the balloon and the back of the rump-bolt platform must be defatted. degreaser for PVC.
The second critical point is the choice of glue, and the usual household adhesives (Moment, Superglue) are not suitable because they are not elastic and when the water balloon is deformed, they just crack, and you need a two-component polyurethane adhesive or a specialized PVC adhesive that, when dried, forms an elastic but strong compound.
Can I use PVC boats from different manufacturers?
Yes, most two-part PVC adhesives (e.g. Texacol, Kleyberg, 88-NP hardener) are chemically compatible, the main thing is to follow the application technology and drying time specified in the instructions for a particular tube.
The preparation process involves not only degreasing, but also lightly cleaning (sweeping) the glued surfaces. Use small sandpaper (grain 100-140) to remove the gloss and create micro scratches that the glue will catch on.
⚠️ Attention! Do not use chlorine-based solvents or aggressive chemicals to clean PVC. They can soften the polymer, making it sticky and unfit for good gluing. Work in a well-ventilated room, glue vapors are toxic.
Once cleaned, re-degrease the surfaces, so that they don't have any dust, villi or fat spots, even a fingerprint can become the center of detachment under load, and let the degreaser evaporate completely before applying the glue.
Step-by-step instruction for installing a rim-bolt
The installation process requires care and time-drying. First, mark the markings with a marker, indicating the center of the installation and the contours of the site, attach the rump bolt to the boat (without glue) and check if it interferes with anything, if the thread is conveniently located.
Apply the first thin layer of glue on both surfaces to be glued, both on the cylinder and on the pad of the bolt. Let it dry to "lip" (usually 10-20 minutes, depending on the temperature and type of glue), then apply the second layer only on one of the surfaces (usually on the pad) and press tightly against the balloon.
☑️ Checklist before gluing
Once glued, you need to ensure uniform pressure throughout the site. Use a heavy load (such as a dumbbell wrapped in cloth) or a special downcast roller. The pressure should be significant to drive out the air bubbles and ensure tight contact. The time for complete polymerization of the glue is 24 to 72 hours.
Only after drying completely can you start drilling. Carefully, with a sharp drill (a diameter of a little less than the diameter of the bolt), make a hole in the center of the site and the cylinder. Be extremely careful not to damage the opposite side if the boat is already inflated, or use a hard lining inward if you work on weight.
Put the bolt in, put on the puck, the grover, and tighten the nut. Don't pull the nut too much to keep the soft cloth out, but don't leave the backlash. After installation, check the tightness by soaping the gluing site -- there shouldn't be any bubbles.
Scheme of installation of bow and aft fryms
The location of the fasteners depends on the type of boat and your tasks. For classic fishing, the most effective scheme is one nose rump in the center and one aft. However, for parking on the current or windy weather, it is often necessary to install two additional sterns on the sides to organize stretch marks.
Below is a table with recommended installation parameters for different types of PVC boats. Data will help to navigate in distances and loads.
| Type of boat | Place of installation | Recommended height from the keel |
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