Operating an inflatable boat in difficult conditions often raises the question of the owner's integrity. Rocky rolls, sharp shells and underwater drifts pose a serious threat to standard water safety. reinforced PVCThat is why the booking procedure becomes not just a desirable option, but a necessity for those who value their time and safety.
The modern market offers many solutions, from factory overlays to Hotop It is important to understand that any interference with the structure must be carried out in accordance with technological standards, so as not to disturb the tightness of the seams.
In this article, we will take a closer look at what materials actually work and what materials are just marketing ploys, how to properly prepare the surface and why. bonding-point It plays a crucial role in the durability of protection.
What is a boat reservation and why is it necessary
By reservation, it is meant to apply to the most vulnerable parts of cylinders additional layers of durable material, most often protected underbody, keel area and lower part of boards, where the probability of contact with abrasive surfaces is maximum. five-layeredAlthough it has a high tensile strength, it can be easily damaged by hitting a sharp object hidden under water at high speed.
The main purpose of the protection installation is to move the point of contact with the obstacle from the thin shell of the cylinder to a more hard and resistant to abrasion outer layer. puncture-breaker It keeps the vessel tight in emergency situations, and it also acts as an extra rib, which is especially true for inflatable keels.
It is worth noting that excessive weighting of the structure can adversely affect the performance and carrying capacity. Therefore, the choice of material should be based on the ratio of weight to strength. For quiet fishing in shallow waters, light protection is enough, whereas rafting on rough rivers requires the use of aluminum-alloy or multi-layer composites.
- 🛡️ Preventing punctures and cuts when disembarking on unequipped shore.
- ⚖️ Increase the service life of the main tissue of cylinders by reducing friction.
- 🌊 Improvement of course stability and hydrodynamics with the correct profile of overlays.
⚠️ Warning: Installing a layer of armor too thick on a flat bottom can change the boat’s hydrodynamics and increase water resistance, which will require more engine power.
The main types of materials for protection of the bottom
The choice of material for the reservation depends on the operating conditions and the owner's budget. The most common option is to use additional PVC sheets of the same or greater density than the main material of the cylinders, these linings are often called "treads"; they are elastic, well-adhesive and practically invisible if matched in color.
More serious protection is provided by metal inserts made of aluminum-magnesium alloy. Aluminum armor It has exceptional resistance to abrasion against rocks and sand, but the metal has the property of oxidizing in salt water, so such elements require high-quality processing or the use of special alloys that are resistant to corrosion.
Special attention should be paid to modern composite materials, such as: kevlar or dainimaThese fabrics, which are used in body armor, have phenomenal tensile strength at a minimum weight, and polyurethane or rubber-based liquid formulations are also being used to create a monolithic shock absorbing layer that extinguishes impact loads.
When choosing between different types of protection, it is important to consider not only strength, but also repairability. If a metal lining can be replaced or removed, then a liquid polymer will require a complex recovery procedure with a cleanup of the entire surface if damaged.
Technology of installation of linings DIY
The self-booking process requires accuracy, cleanliness and temperature. The first step is always careful surface preparation. The cylinders must be washed with degreasing and dried. Any residue of dirt, grease or old glue will detach the protection at the most inopportune time.
The glue process is followed by the application process. For PVC materials, the most common two-part polyurethane adhesives are used. The adhesive is applied in a thin, uniform layer to both the cylinder and the lining. After drying "on the stick" (usually 15-20 minutes), the surfaces are connected and carefully rolled from the center to the edges to remove air.
Adhesion temperature: +20..+25°CPolymerization time: 24-48 hours
Rowing pressure: 3-5 kg/sq.cm
Special attention should be paid to the edges of the linings. They should be properly glued and, preferably, additionally smeared with a sealant or special varnish to prevent water from swelling under the layer of armor. If you use metal elements, the technology may differ and require the use of specialized adhesives for metal and PVC.
☑️ Preparation for booking
After the work is completed, the boat is not recommended to be launched immediately, but you need to wait for the complete polymerization of the glue, which can be from one to three days depending on the humidity and air temperature.
Comparison of specifications of different types of armor
To objectively assess the effectiveness of various protection methods, it is advisable to consider their key parameters in a comparative table, which will help to make an informed decision based on the specific tasks that the vessel will face.
| Type of material | Weight (kg/sqm) | Resistance to abrasion | Difficulty of installation | Cost |
|---|---|---|---|---|
| PVC tread (4 mm) | ~2.5 | Medium | Low. | Low. |
| Aluminum sheet (2 mm) | ~5.4 | Very high. | High. | Medium |
| Kevlar ribbon | ~0.8 | High. | Medium | High. |
| Liquid rubber | ~1.5 | Medium | Low. | Medium |
As you can see from the data, aluminum lining They provide better protection from mechanical damage but significantly increase the weight of the boat. PVC treads are the “golden mean” for most amateurs, and Kevlar is suitable for those who are struggling for every gram of weight, but are willing to pay a high price.
For example, the use of aluminum strip on the keel and PVC linings on the sides allows you to optimize the weight and Protection rating.
The effect of color on heating
Dark linings on light cylinders can heat up more in the sun, creating a local thermal expansion, it is recommended to select the material in tone or use light colors for the upper parts.
Strengthen the keel and the transom part
The keel area takes over the main shock loads when driving along the wave and storming shallow waters. This is where critical damage occurs most often. The keel reinforcement is usually done with high-density linings or metal profiles, which also serve as a function of the keel. cheek-barIt's better for the wave.
The tray part also requires careful attention, especially in the attachment of the outboard motor and safety cables. Vibration of the running engine can lead to microcracks in the material, which eventually develop into tears. shock-absorbing The motor mount helps to extinguish vibrations.
When these zones are reinforced, it is critical that you don't disturb the geometry of the boat. A keel that's too rigid or thick can make the boat less maneuverable and make it less sleeveable. You have to balance the strength and flexibility of the structure.
⚠️ Warning: When installing a metal keel, make sure that the sharp edges of the metal are carefully rolled or closed so as not to damage the cylinder fabric from the inside when the boat is deformed.
To check the quality of gluing a metal keel, use the "tap" method: a deaf sound indicates a good fit, and a ringing one indicates the presence of air pockets.
Armored boat maintenance and maintenance
The presence of additional protection does not relieve the owner from regular maintenance. On the contrary, moisture and sand can accumulate under the linings, which, when friction, will work as an abrasive. Periodically, at least once a season, it is recommended to check the condition of the edges of the armored elements.
Boat washing with armor should be done using a soft brush and neutral detergents. Aggressive chemistry can destroy the adhesive layer or the protective material itself, especially if it is composites or dyed metal. After each operation in salt water, the boat must be thoroughly rinsed with fresh water.
Storage also has its own specifications: you need to fold a boat with hard metal elements very carefully, using special covers or gaskets to avoid PVC cloth cloth clogs in contact with metal. The ideal storage option is to hang or place on a flat surface without severe inflections.
- 🧼 Regularly clean the space under the edges of the sand and silt linings.
- ☀️ Avoid prolonged storage in the direct sun to prevent glue degradation.
- 🔍 Conduct a visual inspection of the seams for bloating or stratification.
Frequently Asked Questions (FAQ)
How much weight will the boat increase after a full booking?
Weight depends on the surface area and the type of material. PVC treads will add an average of 3-5 kg to the total weight; aluminum linings can increase weight by 7-10 kg or more; For single boats, this is tangible; for multi-seat boats, it is not critical.
Can I put armor on an already damaged area?
Yes, but only after the hole is properly repaired, you can't put protection directly on the hole, you put a patch in the hole, then after the glue is completely polymerized, you put the armor on top, and it creates a sandwich effect and strengthens the repair site.
Does armor affect the speed of the boat?
The least impact is possible due to weight gain and changes in contours, but properly fitted keel armor can improve fluid dynamics by making the stroke smoother, the main thing is to avoid steps and irregularities at the joints.
Which glue is better to use to glue aluminum to PVC?
For such purposes, special two-component adhesives with high metal adhesion are required, for example, based on polyurethane with additives for metals. Conventional PVC adhesive may not provide reliable adhesion to a smooth aluminum surface.
A competent booking is an investment in the boat’s durability, which pays off with a lack of repairs and confidence in water safety.