The operation of the inflatable craft is not possible without reliable fittings, and anchor It's the one that runs through the anchor shaft, which is under tremendous pressure when it's winding or flowing, and if it's not installed correctly, it can pull off at the wrong time, potentially causing it to lose anchor or even damage the balloon.
Many owners PVC They prefer to do the upgrade themselves, saving on the services of service centers, but this process requires strict adherence to the technology, because polyvinyl chloride is a capricious material and requires a specific approach. glue Inadmissible, because we are talking about the tightness and strength of the structure.
In this article, we will take a look at the entire process, from tool selection to finishing the seam. superglue It's not a good fit for this task, and it's not a good way to build a connection that can withstand many years of operation, and it's a good way to make sure that your boat is safe on the water.
Choosing the right place to install a ring
The first and most important step is to determine the installation point. Anchor rum It should be placed strictly along the diametrical axis of the boat, on the bow or stern, depending on your needs, and even a few centimeters to the side can lead to uneven distribution of load and skewed boat when anchored.
The surface should be as flat as possible, without pronounced folds or seams if possible. If you install a bark on the nose, make sure that when you pull the anchor rope, it will not rub against the side or other elements of the tooling, such as: squirrel Or leer racks.
⚠️ Warning: Never put the cloth directly on the seam of the cloth joint or on the place of the transom paste. The load from the anchor can embroidery the factory seam, which will lead to depressurization of the cylinder and complex repairs.
The best place to go is the central part of the balloon, where the radius of curvature is minimal. Before you start, blow the boat to working pressure to straighten all the folds and see the real picture, so that you avoid a situation where, after gluing on the deflated cylinder, when pumped, the poop will be skewed.
Required tools and materials for the job
The quality of the result depends on the materials used. polyvinyl chloride (PVC) requires specialized two-component polyurethane-based adhesives. Popular brands such as: Texacol, Desmocoll Or specialized trains from boat manufacturers, show the best adhesion.
You'll also need a toolbox that you can find in any garage, and the basic requirement is that you keep it clean and have the ability to control it accurately, and don't use rusty or dirty objects, because any dust or fat can ruin the gluing.
- 🧴 Two-component polyurethane glue and hardener (catalyst).
- 🧼 Degreasing agent (acetone, white spirit or special PVC cleaner).
- 🪥 Abrasive material (sandpaper with grain of 200-400 or a hard brush).
- 🖌️ A brush for applying glue (preferably synthetic, hard).
- 📏 Marker, ruler and paint scotch for marking.
- 🌡️ Hair dryer construction (to activate glue and warm up).
- 🏋️ Cargo or roller.
Pay special attention degreaserThe surface should be perfectly clean. If you use acetone, make sure it doesn't contain additives that can leave the film behind. Some craftsmen recommend using Kalosha gasoline, but modern PVC cleaners are more efficient and safer for the structure of the material.
PVC surface preparation technology
Surface preparation is 80 percent of the success of the whole operation. PVC has a smooth, often glossy structure that the adhesive sticks to poorly, and your job is to create microroughness by increasing the contact area, but without damaging the material itself.
Take abrasive material and carefully clear the place of installation of the dime and the return part of the dime itself (if it is made of PVC). The main goal is to make the surface matte, but not to wash the fabric to the threads of the base. If you damage the reinforcing layer, the strength of the connection will be compromised.
After machining, you need to carefully remove the dust. Use clean rags dipped in a degreaser. Rub the surface from center to edge, constantly changing the wipe so that you do not smear the dirt back. Repeat the procedure 2-3 times until the wipe stops getting dirty.
⚠️ Attention: It is strictly forbidden to touch the prepared surface with your hands, fat marks from your fingers instantly reduce adhesion, and the glue may not grasp in this place, forming a pocket.
Do the same training with the basis anchor-rimIf it's plastic or metal with a PVC base, the principle is the same: matting and degreasing. Metal parts, if they come into contact with glue, are also better treated with sandpaper for better mechanical coupling.
The glue application process and activation
The most important step is to apply the adhesive composition. Mix the base and hardener strictly in the proportion specified by the manufacturer on the package (usually 4-5% hardener, but sometimes more). Mix the components carefully for 2-3 minutes until you get a homogeneous mass.
Apply the first thin layer of glue on both the balloon and the fry surfaces, which is a primer layer that penetrates the pores of the material, let it dry to a "stick" state (usually 15-30 minutes, depending on temperature and humidity), the glue should not stick to the fingers, but should retain stickiness.
Then apply the second, the main layer of glue, which should be a little thicker than the first one. Wait for drying again. Important point: before joining the parts, the glue often needs to be activated with heating. Use a building hair dryer, warming the surfaces to 50-60 degrees Celsius. Temperature. It should be such that you can barely touch the surface with your finger, but it does not burn.
The ideal temperature for gluing PVC is 18-25°C. If the room is colder, use a heater, but do not direct it directly to the boat to avoid uneven warming.
You need to connect the parts quickly and accurately while the glue is active. Put it on the labeled area and press it hard. Avoid shifts after contact — if you make a mistake, you can no longer tear and glue again, just cut and redo with a sweep.
Fixing and quality control of the seam
Once you're connected, you need to keep the entire seam under uniform pressure, and you need to use a roller (you can use a homemade rubber or a wooden block wrapped in cloth), roll it from center to edge, expelling air bubbles and glue surpluses, and the movements need to be confident and strong.
Then set the load. The weight of the load should be sufficient to press tightly, but not to deform the balloon excessively. Usually use a sandbag or dumbbells wrapped in polyethylene, weighing 3-5 kg. The polymerization time of the glue is from 24 to 72 hours. Do not rush to remove the load before the time.
The full strength of the joint is gained after a few days. After 24 hours, you can carefully check the edges of the seam. If the glue is out on the perimeter with a flat roller, this is a good sign. If there are places where the glue is not, or it looks dried and not sticky, there is no adhesion.
| Work phase | Implementation time | Temperature conditions | Critical errors |
|---|---|---|---|
| Preparation and cleaning | 20-30 minutes | Room room | Too much friction, tissue damage |
| Applying 1 layer | 5 minutes | Room room | Uneven layer, omissions |
| Drying 1 layer | 15-30 minutes | Room room | Incomplete drying of solvent |
| Applying 2 layers and gluing | 10 minutes | Heating to 50-60°C | Cooling the glue to the connection, shifting parts |
| Polymerization under load | 24-72 hours | Not less than 15°C. | Pre-loading |
The quality of gluing depends not so much on the brand of glue, as on the thoroughness of surface preparation and compliance with the temperature regime during activation.
Typical errors and ways to fix them
Even the most experienced craftsmen sometimes make mistakes. drying-out If you put the parts together until the solvent has evaporated, the gas bubbles form inside the seam, which eventually will detach.
Another mistake is ignoring the temperature regime. PVC glue works by diffusion, which is activated when heated. Slurrying on the cold will produce a very weak compound that will collapse under the load of the anchor. It is also dangerous to overheat when the material begins to melt and lose properties.
- ❌ Use of glue with expired shelf life (it loses elasticity).
- ❌ Attempt to glue a wet or cold surface (condensate will kill adhesion).
- ❌ Use of cargoes with sharp edges that can push the cylinder at the gluing site.
- ❌ Ignoring the instructions for a particular brand of glue (different compositions have different chemistry).
⚠️ Warning: If you notice that the pome wobbles or moves around the edges after drying, do not try to "grease" the glue on top. You need to completely cut the element, clean the place again (possibly with a margin), and repeat the whole process with a new piece of PVC tape.
To eliminate small defects at the edges (if the glue is not neatly dried), you can use the same solvent, but you need to act very carefully so as not to dissolve the main seam. It is better to remove the excess glue immediately before it is completely solidified.
Pre-operation reliability check
Before you go out with a new one. anchor-roofAfter full polymerization (at least 3 days), inflate the boat and try to pull the rod in different directions with force, apply a load that exceeds the weight of your anchor several times.
Visually inspect the seam under the magnifying glass or the magnifying glass. You should not see any detachments, bloating or air pockets. The glue should fit tightly around the base of the snout. PVC tape Under the rump, check its edges.
☑️ Final water test
If you've done all the steps, you can go to the pond, and if you've got the rum properly installed, it'll last as long as the boat itself, and check the glue seam regularly, once a season, especially after winter storage, because temperature changes can affect the elasticity of the polyurethane.
Frequently Asked Questions (FAQ)
Can I put a sack on a deflated boat?
Technically, but not recommended. It's hard to control geometry and tension on a deflated tank, and when pumping a boat, the gluing place will experience additional stress, and the rhym can lead or come off. Always work on a slightly inflated boat to straighten the folds, but not to pull the cloth into the string.
How to replace a special glue for PVC in an emergency?
Nothing can be completely replaced. Superglue. (cyanacrylate) will make the material tough and brittle, "Moment" without hardener will not give the desired strength. In the field, you can use remixes with a finished adhesive base, but for a stationary installation of the pome, you only need a two-component polyurethane compound.
How to remove the old rum to glue the new?
The old piece needs to be carefully cut with a sharp knife, leaving a minimal layer of material on the cylinder, then the place is cleared with sandpaper until the old glue is completely removed, if the layer is thick, you can heat it with a hairdryer and roll it with a finger (in a glove), after which the surface is degreased and recooked.
How much does PVC glue dry at low temperature?
At temperatures below +15°C, the polymerization process slows down significantly, and the quality of the seam drops. If the temperature is about +10°C, the drying time of each layer and total polymerization should be increased by 2-3 times. Glue at temperatures below +5°C is strongly discouraged - the glue may not react.
Should I clean it myself if it is new?
Even new products have a factory lubricant or oxide film (if metal) or a glossy layer (if PVC). Without mechanical cleaning (wounding), adhesion will be weak. Metal pits are better coated with a metal primer before sticking the PVC base, if the structure is composite.