Operating an inflatable boat in difficult conditions requires reliable protection against puncture and abrasion. Owners often wonder how to glue armor onto the boat to ensure the durability of the structure without loss of rideability. Properly selected protection from polyurethane or dense PVC fabric significantly prolongs the life of cylinders when entering rocky shores or shallow waters.
The pasting process requires precision, temperature control, and high-quality chemistry. Errors in surface preparation can reduce all efforts to zero, leading to the flaking of the material after a short period of time. In this article, we will take a look at everything from the selection of glue to the final seam check to ensure that your boat is ready for any test.
Modern materials allow you to create a reservation that practically does not increase the weight of the boat, but gives it the properties of an all-terrain vehicle. Technological process It can be divided into several critical steps, each requiring attention to detail, and ignoring safety regulations or using inappropriate solvents can ruin an expensive product.
Selection of materials for boat reservation
The first step in the defense process is to make a good selection of materials, and the market offers many options, but not all of them are equally effective for specific tasks. PVC Polyurethane is valued for its elasticity and abrasion resistance, while PVC fabric provides tough protection.
The adhesive must be highly adhesive and elastic after drying. The most popular two-component polyurethane adhesives are those that create an irreversible chemical compound. chlorprene-based single-component formulations are also used, but require more careful preparation and are often inferior in strength to dynamic loads. It is important that the adhesive is compatible with the material of the boat and armor itself.
- 🛡️ Oxford fabric or specialized reinforced PVC fabric is the main material for creating a protective layer.
- 💧 Two-component polyurethane glue - provides maximum strength and water resistance of the connection.
- 🧪 Solvent (acetone, ethyl acetate) - is necessary for degreasing the surface and activating the adhesive layer.
- 🖌️ Brushes and rollers - tools for uniform application of glue, preferably with hard bristles.
⚠️ Warning: Do not use Moment or other water-based household compounds for capital bookings. They will not withstand constant contact with water and tear loads, which will lead to flaking of the armor at the most inopportune time.
When choosing fabric, pay attention to the texture of the surface. Smooth fabric is easier to wash, but grooved better resists slipping and mechanical damage. For the bottom, often choose a material with reinforced reinforcement, and for the sides - a lighter and more flexible option. The thickness of the protective layer should not exceed 2-3 mm, so as not to weigh the design of the boat excessively.
Preparation of surfaces and tools
The quality of the surface preparation determines 80% of the success of the entire operation. Even the most expensive glue will not keep the armor on a dirty, greasy or wet surface. Before starting work, the boat must be thoroughly washed using detergents, removing all dirt, sand and algae. After washing, the cylinders must completely dry.
The next step is mechanical and chemical treatment, and the surface that the armor will stick on is cleaned with fine sandpaper (grain 120-180) before the matte appears, which increases the adhesion area of the adhesive to the material, followed by solvent degreasing, which removes silicones, dust and residues of fat spots.
☑️ Preparation for pasting
It requires a flat, warm and well-ventilated room, air temperature should be between +15 and +25 degrees Celsius, humidity should not exceed 60%, as condensate on the surface will reduce adhesion to zero, cut the pieces of armor in advance on patterns, leaving allowances at the joints.
Technology of applying glue and pasting
The gluing process requires strict adherence to the sequence of actions. If two-component adhesive is used, it must be mixed with a hardener in the proportion specified by the manufacturer (usually 100:4 or 100:5). The viability of such a mixture is limited to 2-4 hours, so it does not make sense to cook a large amount at once.
The adhesive is applied with a brush in a thin, uniform layer on both surfaces that are glued together, on the boat itself and on the underside of the armor. After the first layer is applied, you need to let it dry to a state of "stick" (usually 15-30 minutes), then you apply a second layer, which should also dry. The drying time depends on the temperature in the room.
- 🕒 First layer It is applied to impregnate the tissue pores and create a base.
- 🔥 Activation. - the surface can be warmed by a hair dryer to 50-60 degrees to improve adhesion before joining.
- 🤝 Connection - combine the surfaces and carefully roll a hard roller from the center to the edges, squeezing out air.
When rolling, it's important to keep bubbles out. The roller movement needs to be strong and confident. If it does form, you can try to squeeze it to the edge or punctur it with a thin needle, inject a little glue in there and roll it back again. Pay special attention to the edges of the armor, they should be glued as tightly as possible.
Use a temperature-adjusted building dryer to activate the adhesive layer just before docking surfaces, which greatly enhances the strength of the seam, especially when working in a cool environment.
Features of the pasting of complex areas
The greatest difficulties are in booking the keel, the transom and the bow gain. These areas are subjected to maximum stress and require special treatment. The keel often forms folds if you do not calculate the tension of the fabric correctly. It is recommended to make small incisions (floats) on the rounds so that the fabric lies flat.
When working with transom, it is important not to glue the attachment places of the cans and stringers, if they are provided by the design. The armor should be around the corner elements without tearing, special "tongues" are cut out or additional strips of fabric are used that block the joints of the main pieces of armor.
| The boat section | Recommended thickness of armor | Type of load | Features of installation |
|---|---|---|---|
| Keel and contact spot | 3-5 mm (or 2 layers) | Abrasive, rocks, sand | Maximum adhesion is required, no folds are required |
| Board (lower part) | 1.5-2 mm | Friction on water, branches. | Flexibility of the material is important |
| Nose part | 2-3 mm | Blows, friction. | Complex geometry, need cuts |
| Tranza | 2-3 mm | Mechanical damage | Bypass of anchorages, flat edges |
The joints of pieces of armor should overlap at least 3-5 cm Places of joints are additionally smeared with glue and rolled. After drying, the seams can be treated with protective varnish or a special composition that prevents the dissection of the edges from exposure to ultraviolet light.
Polymerization time and quality control
Once completed, the boat takes time to fully polymerize the adhesive, and although surface drying takes a few hours, maximum strength builds take 24 to 72 hours, during which time it is strongly advised not to pump the cylinders to working pressure or, let alone launch the boat into the water.
Quality control should be done visually and tactilely. Run your hand around the edges of the armor, there should be no detachment or bloating. When pressed with your finger, the material should not "walk" or emit a characteristic peeling sound. If a defect is found, it should be repaired immediately, gluing the site again.
⚠️ Warning: Do not accelerate drying of the glue with open fire or too hot air (above 80 degrees). This can cause the PVC fabric of the boat to deform and form bubbles in the adhesive seam, which will make the joint leaky.
The final test of leakage and strength can only be done after full exposure. Pump the boat and leave it for a day in a warm room. If the pressure has not dropped and there are no visual changes, the work can be considered successful. The first exit is better done in calm conditions, without extreme stress.
Caring for an armored boat
An armored boat requires specific care. The extra layer of fabric creates places where moisture and dirt can accumulate. After each fishing, you must thoroughly wash the boat, paying special attention to the joints of armor and the main cylinders. The use of a hard bristles brush to clean armored areas is allowed, but without fanaticism.
Keep the boat with armor is better in a straightened state or in a spacious bag, so that the folds of armor do not form clamps. Polyurethane glue is resistant to oils and gasoline, but prolonged exposure to aggressive chemicals can reduce its elasticity. Periodically (once a season) check the condition of the edges of protection.
What to do if the armor starts to move away?
If you notice the edge of the armor being detached, don't expect it to come off completely. Clean up the breakaway site, degrease it, and apply a fresh layer of glue. Press it with a load or roll it. If the damage is severe, you may need to completely reglaze the strip.
Timely repair of minor damage to the armor itself will prevent water from entering the protective layer. If the armor is punctured, the repair is done using standard patching technology, but taking into account the thickness of the protective layer. Use the same materials as the main pasting.
High-quality glued armor serves the entire life of the boat, no need to replace, if the technology of preparation and bonding is observed.
Frequently Asked Questions (FAQ)
Can I put armor on an already assembled and floating boat?
Technically, it's possible, but it's very inconvenient and it reduces the quality of work, you have to hold the boat constantly, it's difficult to provide the necessary pressure when rolling seams, it's better to work on deflated but straightened cylinders in stationary conditions.
Do I need to clean the entire surface of the boat before putting it on?
No, you only need to clean the place where the glue will be applied directly, and the rest of the surface is simply washed and degreased so that the protective layer of the factory fabric is not damaged unnecessarily.
How much does PVC glue dry at low temperature?
At temperatures below +15 ° C, the polymerization process slows down 2-3 times, and adhesion drops sharply. Glue at temperatures below +10 ° C is strictly not recommended, since the glue may not grasp at all or crystallize.
Does the armor affect the boat’s performance?
Yes, the boat gets a little heavier and stiffer, and it's pretty much the same as the planing, but the time to go into mode can be extended by a few seconds, but you get confidence in the terrain and protection from serious damage.