Choosing a boat for fishing or hunting is always a trade-off between weight, strength and cost. In recent years, the water-motor market has become increasingly popular. mineboat This material, often referred to as HDPE, is a dramatic change in the way a budget-friendly but reliable vessel should be.
Many water-engines are still distrustful of plastic, accustomed to classic rubber or expensive aluminum. polyethylene They have a unique set of specifications that make them ideal for certain operating conditions, and unlike inflatable counterparts, they are not afraid of punctures, and, compared to metal, they are better at maintaining and heat capacity.
In this article, we will discuss in detail what they are. rotary-boatYou'll learn about the nuances of choice, the features of operation in winter and why this material becomes the standard for rental bases and rescue services.
What is PMD and production technology
abbreviation PMDA It stands for polyethylene brand D., where "D" stands for "low pressure" is a high molecular weight polymer with exceptional impact resistance and chemical resistance, and shipbuilding uses a polyethylene powder that is processed instead of sheet material.
The basic technology of building a body - rotational The process is to fill the powder in a metallic matrix, which is then heated and rotated in two planes, and the molten polyethylene is evenly distributed across the walls, creating a monolithic structure without seams or joints.
It is the absence of welds that makes mineboat Unlike aluminum, where the seams are stress zones, the plastic housing is a single structure, and it can withstand tremendous impact loads that would be fatal to other materials.
Key Advantages of Polyethylene Boats
So why are fishermen and hunters increasingly turning to plastic? pristineness The material itself is lighter than water, and even a fully watered boat will remain afloat, which is critical for safety on the water.
The second important aspect is heat-resistance It's not tanning in the cold, it's not becoming brittle like some rubber or some cheap plastic, and you can store it in an unheated garage or outdoors without fear of breaking the structure of the material.
Third plus, shock-absorbingWhen you hit the side or land hard on the water, the polyethylene "springs" to dampen the impact energy, which makes the boat more comfortable and protects the cargo from shaking.
- 🛡️ Indestructible: the body withstands blows with paddles, stones and branches without the formation of holes.
- ❄️ All-season: operation is possible at temperatures from -50 to +60 degrees Celsius.
- 🔧 Repairability: Any damage is easily brewed with a hair dryer or soldering iron with a filler rod.
When storing a boat from PMD in winter in the cold, it is recommended to cover it with a light cloth or tarpaulin to avoid local overheating from direct sunlight, although the material itself is resistant to UV radiation.
Comparison with PVC boats and aluminum analogues
To understand the place mineboat In the hierarchy of boats, you need to make a direct comparison with the main competitors. Aluminum boats (Kazan, Crimean) are valued for their rigidity and the ability to install powerful engines, but they are heavy, noisy and prone to electrochemical corrosion.
Inflatable boats from PVC They're very compact when they're transported and they're very heavy, but they're vulnerable to puncture, they need to be pumped constantly, and they're afraid of open fire or sparks. The plastic boat is in the middle of the space, and it's heavier than the inflatable boat, but it doesn't require a pump, and it's not afraid of sharp objects.
The table below provides a detailed comparison of the specifications of different types of small craft for clarity:
| Characterization | PMD boats (Plastic) | PVC boats (Inflatable) | Aluminum boats |
|---|---|---|---|
| Body weight | Medium (30-60 kg) | Low (15-30 kg) | Tall (50-100+ kg) |
| Security | Tall (not drowning) | Medium (puncture risk) | Tall (but drowning) |
| Repairs | Simple welding with a hairdryer | Special glues, lats | Argon welding |
| Term of service | 20+ years | 7-10 years | 15-20 years |
It is worth noting that mineboat Plastic is warmer to the touch, doesn't require mats to sit on cold metal, and is much quieter on the wave without creating a characteristic roar.
Disadvantages and limitations of operation
Despite the many advantages, the polyethylene-boat There are some weaknesses to be aware of before buying, and the main disadvantage is weight, which is lighter than aluminum, but heavier than PVC. Transporting a boat 3.5-4 meters long on the roof of a passenger car may require physical strength or special devices.
The second point is sailabilityBecause of their low weight and wide flat bottom, these boats are highly susceptible to side winds, and in large open waters, it becomes difficult to drive a boat without a motor in windy weather, and can drift faster than row.
⚠️ Attention: Do not use abrasive cleaning agents or solvents (acetone, gasoline) to wash the case. Although PMD is chemically inert, aggressive chemistry can change the structure of the surface, making it rough and prone to fouling algae.
And there's also the potential for deformation when stored improperly, and if you leave an empty boat in the summer under the scorching sun on an uneven surface, it can swim and lose its geometry, either filled with water or in the shade on a flat base.
Features of selection and configuration
When choosing mineboat First of all, pay attention to the thickness of the side. Quality models have a wall thickness of at least 4-5 mm. The thin plastic will quickly lose its rigidity and will "walk" under load, which is unpleasant when cruising on deck.
The design of the transom is an important element, and in most models, it's built into the body, which increases reliability, but limits the power of the motor. boat-engineLook for models with a reinforced transcrete or the ability to install a motor compartment.
Please note the presence of additional elements:
- 🪑 Exceptions: must be metallic or reinforced, welded directly to the shell and not glued.
- 🛶 KILSON: The longitudinal rib of stiffness at the bottom, which protects the boat when pulling ashore.
- 📦 Runduks: built-in sealed compartments for storing things, which also serve as air cylinders.
☑️ Checking the boat before buying
Installation of equipment and tuning
One of the main advantages mineboat Polyethylene is easy to drill, and the holes do not require complex sealing, it is enough to use special screws with rubber washers or thermal shrinkage.
Often, owners install sonars, spinning holders and navigators. foaming Or special brackets that are attached directly to the sides, the main thing is not to overload the nose, so as not to disturb the differentiation.
Recommended torque for screws on board MDP: 1.5 - 2.0 NmFor fishing in the cold season, many install simple frames for awnings or even small heaters. Plastic keeps warm, and with even a minimal heat source, the inside of such a boat is much warmer than in an open Kazanka.
How do you drill the side properly?
You need to drill plastic at low speeds to avoid melting the edges of the hole. Use first drills on wood or metal. After drilling, be sure to walk the edges of the hole with a heated soldering iron stinger or a knife to melt the villi, this will prevent water from leaking into the material structure and forming cracks.
Repair and restoration of the hull
Even the strongest boat can be damaged, but repairs can be done. mineboat It's a process that everyone can do at home, and you don't need expensive service centers or complex equipment, but the main tool is a hair dryer or a gas burner with a nozzle.
The recovery technology is simple: the edges of the crack or holes are heated to a melting state, after which an additive material (a rod from the same PMB) is introduced into the gap, after cooling, a monolithic seam is formed, the strength of which is not inferior to the solid material.
⚠️ Attention: When using an open fire (gas burner), be extremely careful. Plastic is combustible, and when overheated, it can ignite. Work in a well-ventilated room and have a fire extinguisher or water on hand.
For deep scratches that are not through, it is often enough to melt the surface with a hairdryer to tighten the damage, and this will prevent the accumulation of dirt and water in microcracks in the future.
The bottom line: Who will fit the boat from the PMD?
Boats from MMD It's a choice of pragmatic people who value reliability over aesthetics and lightness, and are ideal for winter fishermen, hunters, and for use as tender boats or rental boats where "unkillability" is important.
If you live in a harsh climate, where the boat has to be dragged over rocks, dragged through the woods, or left in the cold, polyethylene will be your best ally. It's an investment in peace of mind that will pay off with no repairs and a long lifespan.
A PMD boat is a workhorse of water: it does not require delicate handling, forgives the mistakes of beginners and is ready to operate in any weather conditions for decades.
Frequently Asked Questions (FAQ)
Can I put the motor on a boat from PMD?
Yes, you can. Most models have a built-in or hinged transom, designed for motors up to 5-10 hp There are reinforced models that can withstand engines up to 15-20 hp, but before buying, be sure to check the maximum power in the product passport.
How does a boat from PMD behave in a severe frost?
Low-pressure polyethylene retains its elastic properties even at -50°C. It does not crack or break from impact. However, it is worth remembering that in severe frost the material becomes stiffer, so sharply throwing such a boat on the ice is still not recommended, although it will withstand it better than PVC.
Do I need to register a boat from PMD in GIMS?
Registration depends on the weight of the boat and the power of the engine. According to current Russian regulations, registration is not required if the weight of the boat with the installed engine is less than 200 kg and the engine power does not exceed 8 kW (about 10.8 hp).
How do you wash a boat out of plastic?
It is best to use regular water and brush. To remove complex contaminants (oil, gasoline), you can use household detergents (Feri and analogues); Avoid solvents of organic origin, such as acetone or 646th solvent.