The approach of the winter season poses a difficult but vital question for owners of swimming equipment: where and how to leave the boat before spring? This problem is especially acute for those who do not have a heated garage or a spacious storage room in the apartment. inflatable boat It is often perceived as an indestructible tool capable of surviving any cataclysms, but the polymeric materials from which it is made have their own physical limitations.
Many fishermen and water tourism enthusiasts, out of habit or space constraints, leave their inflatable vessels on unheated balconies, in metal shell garages, or even in the open air, and this seems logical: the boat is strong, can withstand rock impacts and does not sink. polyvinyl chloride (PVC)The sludge, which forms the basis of the modern inflatable boat, is a complex chemical product that reacts to temperature changes.
In this article, we will examine in detail the physics of material processes at low temperatures and answer the main question: can you keep a inflatable boat in the cold without fatal consequences for its further operation?
Physics of the process: how frost affects PVC and rubber
To understand the risks, you have to look at the structure of the material. PVC At normal temperatures, this material is flexible, elastic and able to withstand significant stretching due to a net of capron threads woven into it, but as the temperature drops, the molecular bonds in the plastic become less mobile.
When the temperature drops below the critical level (usually -15 ° C...-20 ° C for high-quality material, but for cheap analogues the threshold is higher), the so-called "preferred" occurs. glass-crossIt doesn't freeze like water, but it loses its plasticity, it becomes rigid, brittle and brittle, and if you try to fold, roll, or even just push a boat abruptly, it creates microcracks.
⚠️ Attention: The greatest danger is not static lying in the cold, but mechanical exposure to frozen material. Attempting to straighten or fold the boat at temperatures below -10 C can lead to permanent damage to the tissue structure.
In addition, extreme temperature changes, typical for off-season or unheated spaces, cause the effect of "breathing" the material. When heated during the day and cooled at night, microscopic expansion and compression occur, which over time leads to layers of layers. reinforcement And that's why temperature stability is more important than just low temperature.
The optimal temperature for storing PVC boats is from -10 ° C to +20 ° C. Sharp temperature jumps are more dangerous for the material than stable frost.
Critical risk factors for winter storage
When you decide to leave a boat on the balcony or in the garage, it's not just the degrees on the thermometer that you have to consider. There are a number of factors that can collectively turn wintering into a disaster. The first and most important enemy is ultraviolet. Even in winter, especially in February and March, the sun's rays are actively destroying polymer bonds.
The second critical factor is humidity and condensation. In an unheated room, when temperatures fluctuate, condensation can fall on the surface of the boat. If the boat is folded, this moisture stays inside the folds, creating the perfect environment for mold and fungi to develop, which corrodes the material from the inside, and water that gets trapped in microcracks and frozen expands, tearing the fabric.
- 🌡️ Temperature: The critical threshold is -20°C, after which the risk of material destruction increases exponentially, especially when mechanically exposed.
- ☀️ Solar radiation: Direct sunlight causes degradation of the upper layer of PVC, making it matte and rough, which reduces strength.
- 🐀 Rodents: Mice and rats in the cold season are actively looking for shelter and can chew through inflatable tubes, mistaking them for food or just for the sake of sharpening teeth.
Ozone can be higher in urban environments, especially near industrial areas or highways, and this gas accelerates the aging of rubber and polymers, causing a characteristic grid of small cracks on the surface.
Preparing the boat for the winter season
Proper preparation is 90% of the success in keeping a swimmer. If you still decide to keep the boat in a close to street conditions (balcony, cold garage), the procedure for preservation should be as thorough as possible, you should start immediately after the last fishing of the season, without delaying for later.
The first step is to thoroughly wash away all the dirt, sand, silt and most importantly fish mucus and blood. Organic residues are an aggressive environment for PVC and can leave unstained stains or even burn through the material with prolonged contact, warm water and soft sponges.
⚠️ Attention: It is strictly forbidden to use aggressive solvents, gasoline, acetone or abrasive cleaning products for washing boats, which wash the protective layer and make the material vulnerable to ultraviolet light and frost.
After the washing, the boat must be perfectly dry, the moisture must not remain anywhere, not outside, not inside the cylinders, not in the folds of the bottom, drying is best in the shade at room temperature, completely inflating the boat, only after drying completely can you start treatment with special means.
☑️ Checklist for the preparation of the boat for winter
Rules for safe storage in unheated rooms
If there is no alternative to storage in the cold, you must strictly observe the packaging technology. The boat cannot be stored in a deflated state, but not folded up - it will take up a lot of space and be subject to accidental damage. The best option is a neat twist without inflections.
It is important to protect against direct sunlight, and a boat lying on a balcony should be covered with a dense cloth, tarpaulin or placed in an opaque case made of dense material, which will prevent exposure to ultraviolet light and reduce the amplitude of temperature fluctuations.
For additional protection from rodents, you can use special repellents or spread strong-smelling substances (mint, mothball), although the effectiveness of the latter is often questioned. It is better to ensure physical inaccessibility: lift the boat higher or close access to the storage site.
Secrets of the professionals
Some experienced boaters recommend sprinkling talc slightly on the inner surfaces of cylinders before long-term storage, which will prevent rubber from sticking together and make it easier to straighten in the spring.
Do not forget about the components. Covered elementsThese are the seats, the cans, the rod holders, and the plastics are better removed and warmed, and they become fragile faster in the cold than the boat itself, and they can crack under their own weight or by accidental impact.
Comparison of conditions: balcony, garage and warehouse
The choice of storage location often becomes a compromise between the desire to keep the boat ideally and the owner's real capabilities. Let's compare the basic options so you can weigh the pros and cons for your situation.
| Storage area | Temperature conditions | Risks. | Recommendations |
|---|---|---|---|
| Apartment (warmth) | Stable, +18... +25°C | Minimum | It's perfect, keep it in a case, away from the batteries. |
| Balcony (glazed) | Variable, from -5 to +15°C | Medium (UV, variations) | Be sure to cover from the sun with a tight cover. |
| Garage (metallic) | Sharp, -20 to +10°C | High (condensation, cold) | Lifting above the floor, protecting from rodents. |
| Open air | Street | Critical | Not recommended. High risk of material destruction. |
As you can see from the table, a metal garage can be even more dangerous than a balcony due to the effect of “thermos” and the formation of condensation on the walls, which then settles on the boat. The safest place after a heated room is a dry, dark cellar or basement with a plus temperature.
What to do in the spring: check after wintering
Spring came and you took the boat out of the vault. Don't rush it to the working pressure and carry it on the water. A sharp change from cold to warmth and rapid bloating can finish off the material that has been dormant all winter. Let the boat lie straight at room temperature for at least 24 hours.
During this time, the material will warm up, restore elasticity, and you can do a visual inspection, carefully check the seams, bottoms and cylinders for new cracks, bloating or stratification, pay special attention to the places where the bottom and sides dock, which are often problems.
After visual inspection, do a test pump, pump the boat to working pressure and leave it for a few hours (preferably a day). If the pressure is maintained and there is no swelling ("hernia"), then the wintering was successful, you can start lubricating the valves and preparing for the season.
The main rule of spring launch: never start pumping a boat brought from the cold immediately. Let it warm up to room temperature in the straightened form for at least a day.
FAQ: Frequently asked questions
Can I keep a PVC boat in the cold in an inflated state?
It is strongly discouraged. Inflated, the material is under constant stress; when the temperature drops, the pressure inside the cylinders drops, but the material is compressed unevenly; in addition, an inflated vessel takes up a lot of space and has a large sailing capacity, which increases the risk of damage by wind or falling objects.
At what temperature does PVC become brittle?
High-quality reinforced PVC begins to lose elasticity at a temperature of about -15 ° C. At -20 ° C and below, the risk of cracking when mechanically exposed (curling, moving) becomes very high. Cheap materials can become brittle as early as -5 ° C...-10 ° C.
Do I need to lubricate the boat before winter storage?
Yes, using special protective sprays or emulsions for PVC (often called "preservatives") creates a thin film on the surface, which protects the material from drying, oxidation and ultraviolet exposure. Conventional silicone lubricants are less suitable for this purpose, because they can be too greasy and sticky.
Is it dangerous to keep a boat near a heating appliance?
Yes, it's even more dangerous than a mild frost, and the proximity to batteries, stoves or heaters causes local overheating, material deformation and accelerated plastic aging, and the distance to the heat sources must be at least 1 meter.