Category Archives: Uncategorised

Five myths about inflatable boats made of PVC

1. Five layers of PVC

This is the most popular myth about inflatable boats.
Everyone who chooses a boat faces this rumor. It affects both sellers and buyers. Both are great people, but <don’t realize what they’re doing>. To dispel this myth, it is necessary to tell a little about the PVC material itself, from which boats are made. Polyvinyl chloride (PVC) itself is a very thin material, slightly more resistant than other types of polyethylene. In order to increase its resistance, a reinforcement is produced – one layer of PVC is glued on both sides on a sufficiently hard net, interwoven with polymer filaments.

Adhesive, a component (adhesive) with high adhesive (adhesion is the force that binds two different types of materials in close proximity to each other) properties that binds PVC and a rigid cord at the molecular level, i. the two materials become one – integral. The resulting multilayer material is characterized by high resistance to cracking, tearing, puncture and abrasion. So where are those five layers here? Some manufacturers use this marketing step and assure that the adhesive glue is read in two additional layers. It is very convenient to “push” the products in “dirty” ways: – Here we have the material in five layers, and in our case, it is three or even two layers! Let’s look at it even simpler and get the following composition of material: film – cord (fabric) – film, and there is nothing more there. The fairest would be boats call the material – <reinforced PVC> and forget about it forever called <five layers>. It should be added that in addition to reinforced PVC, boats are also made of hypocone, but it is a material with completely different properties. There are still Chinese-made rowing boats made of unreinforced PVC, but their use as a serious craft, under no circumstances, here we will not consider it.

2. Higher density – stronger boat

The second most popular is the myth about the density of the material from which it is made boat. He argues that the higher the density of the material, the stronger it is. It’s just a seller ordinary trick! The PVC material used in the manufacture of boats is produced Europe (Finland, Germany and the Czech Republic) and South Korea. Unambiguously say which manufacturer is the best – we can not, but there is a fact that South Korean material is slightly denser than that produced in Europe (the density of the most popular Korean PVC material for boats is 1100 g / m2).

At first many of the country’s manufacturers used European material in boat making, but “Asian” material turned out to be much cheaper, so almost all evenly moved to her. For this reason, the buyer somehow needed to be served this the material is something better, and bingo !!! The solution was quickly found a classic marketing step when someone’s mind came to mind: <Let’s say she’s stronger …>.

If we compare each other Boat material made in Europe with a density of, say, 850 g / m2 and the same “Asian” at 1100 g / m2, will show wear, cracking and puncture the characteristics are the same for them! But made of “Asian” material the boat will weigh a little more analogously, made of European substances. But no less important here is another aspect – in addition to PVC, which is special certified for the production of inflatable boats, there are still materials for awnings, swimming pools, etc. production and they are cheaper. Some rogue manufacturers of boats use these materials in their production. And it is precisely these materials that have a lower density.

Meaning if you want a sturdy boat – don’t look at the density of the material instead
ask for a certificate of conformity.

3. Five year warranty

Anyone who came up with this needs to build a monument to what they did in their time the Germans to Hindenburg in 1914. In the face of a severe shortage of metal built him a monument … of wood. Next to it lay a hammer and a pile of nails. For those who want to express his respect, it was suggested to nail the nail to the monument and so to him metallized. But closer to the point. Let’s take a close look at who is given this warranty? It is given to seams and fabric. If after examining the details, it is seam – is the strongest place in the boat, glue is used in the production of PVC boats has very high adhesive properties.

The seam of the boat is a monolith where the ties between substances are at the molecular level. Overtime (much more than five years) the substance itself may be affected by external environmental effects, but properly the glued seam will remain intact! And if there’s something wrong with the seam, so is she have a gluing defect, so 99.99% of the time will appear on the boat for the first time getting into the water and the remaining 0.01% in the second! Do not notice the seam defect simply impossible.

The calculation here is very simple – if something is wrong with the boat, it becomes clear immediately, if all goes well – it will continue to be so in the future. Warranty the substance is supplied by its manufacturer and is not valid from the date of its sale but the date of its manufacture. The five-year warranty does not apply to the boat components – oars, pumps, dishes, etc. Nothing will give you more than one year! And that’s at best. So a five-year warranty applies only to seams (in general, which will never require warranty repair – if seam made qualitatively) and the material for which the boat manufacturer does not respond.

4. Welded or glued

And yet, which is better, welding or gluing seam? The thing is, that essentially these two methods are the same. Just boil with the machine for a while glued – by hand. Do not forget that it’s not a simple aquarium silicone. The adhesive used in the manufacture of boats (glue), which requires a high temperature to activate and therefore by manual gluing an industrial hairdryer is used, and when welding, the device does. Manual gluing is a rather expensive and labor-intensive process.

To make it cheaper and speed up – it needs to be automated. Welding equipment, really far from it, not a cheap pleasure. As for quality and durability. Using automation we will not avoid deviations in the harmonization of the system, which may cause the material to burn, or on the contrary, not achieving what is needed. This phenomenon is common enough in all-welded boats, from elite to budget. Well while gluing always a human factor occurs, such as when a worker is in a bad mood. Bet in which case, neither method of production is better or worse. Together with the same!

5. PVC boats are not suitable for repair

This myth was coined by the users themselves when inflatable PVC appeared in Russia boats, constantly trying to equate them with rubber boats. Fortunately, this myth has already survived itself. The thing is that the comparison between PVC and rubber boats in terms of fitness for repair, it is actually PVC boat repair is more complicated. But here the alignment ends. Any, smaller, PVC boat than a five-centimeter-long puncture or cut, we can eliminate even hike conditions. It is enough to use the repair kit, which is usually included when buying a boat of standard equipment consisting of pieces of material and special PVC glue.

Care must be taken to repair them properly read and follow the instructions. Do not glue undried or wet surface; do not glue at temperatures below zero Celsius and do not glue pierced areas without first venting the chambers! Someone is smiling now after all these are real cases after which users sacredly believed that PVC boats unsuitable for repair and actively began to spread this opinion among others! By itself, it is understood that the cut of a meter-long chamber can only be repaired in a specialized service center, as well as a shotgun boat.

You need yourself to note that fishing, hunting, or general operation may happen to anyone. After all, it happens that spaceships crash, and that’s all there is calculated a thousand times more. Easiest to avoid as much as possible unpleasant excesses, and if they do happen, try to be to the maximum ready.