Inflatable boats made of PVC have long become the standard for fishing and resting on the water, but it is precisely the lipas It turns a simple inflatable boat into a full-fledged boat that can withstand harsh operating conditions. This seemingly simple piece of hardware performs a critical function: it provides a sealed and reliable attachment of an inflatable balloon to a hard transom, sides or floorboards. Without a high-quality profile, it is impossible to imagine modern inflatable structures, whether professional rafting or quiet fishing.
Many owners face the need to replace or install this element either when assembling a boat from scratch or when repairing after mechanical damage. Likpaz is a special profile of polyvinyl chloride (PVC), which is glued into the fabric of the balloon and takes the response part fixed on the rigid structural element. The main advantage of liquor over the usual adhesive balloon is the ability to quickly replace the damaged element without completely gluing the entire product.
In this article, we will discuss all the nuances associated with this element, you will learn what types of profiles exist, how to choose the right glue and tools, and also get step-by-step instructions for self-installation. Understanding the principles of this unit will help you not only save on the services of masters, but also to extend the life of your boat.
What is a Liquor and why is it needed in the design of the boat
Likpaz is a specialized fittings made of special PVC material, which in its physical and chemical properties is as close as possible to the material of the boat itself, its main task is to create a strong, sealed and elastic connection between the inflatable part (balloon) and rigid elements (transom, stringers, floorboards). Universality This solution allows manufacturers to create modular designs that are easily assembled and disassembled.
The principle of operation is based on mechanical grip: one part of the profile (usually soft, flexible) is glued to the fabric of the cylinder, and the second (hard, retaliatory) is mounted on plywood or metal. fixationThis allows the balloon to maintain its shape and not slide under load, for example, when driving at high speed or in high winds.
The use of liquor solves several engineering problems at once, first, it is a uniform distribution of the load along the perimeter of the connection, which eliminates tissue tears at the attachment points. repairIf the balloon has been pierced or torn at the seam, it can be unfastened, replaced or taped and then fastened back, without waiting for the glue to be fully polymerized throughout the area.
⚠️ Attention: Do not attempt to use a profile from another manufacturer without checking compatibility. The groove geometry may vary by fractions of a millimeter, resulting in leaky connection or inability to assemble a pressure boat.
In addition, liquor allows you to create complex geometric shapes of cylinders that can not be realized by simple gluing, this is especially true for boats with inflatable keel (BBN), where you need to accurately position the cylinders relative to the bottom.
The main types of liquors and their design features
There are many profile modifications on the market today, and the choice of the right one depends on the specific task. angularThis is a 90 degree angle that is used to attach the balloon to the transom or side, and it allows for a rigid docking of vertical and horizontal surfaces.
The second popular type is straight-lineIt is used to connect two cylinders together or to attach the balloon to a flat surface without changing the angle, such profiles are often found in the design of inflatable catamarans or when building the height of the sides.
It is also worth highlighting specialized types, such as lipases for attaching to the stringer High Pressure boats have thicker walls and complex geometry that can withstand significant tear loads.
And the material that's being performed also plays a role, and the cheap ones can be made from ordinary plastic, which in the cold becomes brittle. PVC-liquor It retains elasticity at temperatures up to -40°C, which is critical for operation in northern latitudes.
Tools and materials for self-installation
The quality of the liquor plant depends on the preparation of the surface and the correctness of the materials selected. You can not save on glue here, because your safety on water depends on it. The main binder is a two-component polyurethane adhesive specially designed for PVC.
To carry out the work, you will need the following set of tools and consumables:
- 🔪 Sharp construction knife or scalpel for cutting fabric and cleaning the edges.
- 🖌️ Hard bristles (fleshed or natural) for applying glue.
- 💨 Hair dryer for heating the glued surfaces (temperature up to 200 C).
- 🧴 Degreasing agent (acetone, special solvents for PVC).
- 📏 Roulette, marker and coal for accurate marking.
- 🎚️ Rolling roller (preferably Teflon or silicone) to remove bubbles.
Special attention should be paid to the choice of glue, the most proven polyurethane-based formulations, such as: Klejpur, Wurth or specialized adhesives from boat manufacturers (e.g., TexacollIt is important that the adhesive is two-pronged: this ensures the heat resistance of the seam and resistance to water and fuels.
Don't forget about personal protective equipment. Solvent and glue vapors are toxic, so you need to do the work in a good way. airy Indoors or outdoors, using a respirator, and gloves will also be needed to keep the skin from being damaged by harsh chemicals.
☑️ Ready for gluing
Step by step instructions: how to glue the liquor into the balloon
The process of sticking the liquor requires accuracy, temperature and time intervals. A violation of the technology will cause the seam to float when the boat is first pumped. Below is a universal instruction that is suitable for most types of profiles.
First, you need to prepare the surfaces. The PVC tissue at the place of gluing and the profile itself are carefully cleaned with sandpaper (80-120 grain) before the appearance of matteness, which increases the contact area and adhesion. After cleaning, the surfaces are degreased with solvent until the dust and grease are completely removed.
Next, you apply the glue. You apply the glue in a thin, uniform layer on both glued surfaces. Don't try to glue it right away: most polyurethane glues require you to dry the first application for 10 to 20 minutes before the stick, and then you apply a second layer, which is also dried, but less so, about 5 to 10 minutes.
The critical point is the activation of the adhesive layer. Both surfaces (tissue and likpases) are heated by a building hair dryer to 60-80°C. PVC should become warm and slightly sticky, but not melt. Immediately after warming up, the parts join together and roll tightly from the center to the edges to squeeze out air.
⚠️ Attention: Don't start operating the boat immediately after gluing. Complete glue polymerization takes 24 to 72 hours depending on air temperature. Pumping the boat ahead of time will cause the seam to diverge.
To strengthen the connection, an additional band of fabric (bandage) is often used, which is glued over the junction of the balloon and the liquor, which is especially true for areas experiencing maximum loads, such as the corners of the transom.
Typical errors in installation and ways to eliminate them
Even skilled craftsmen sometimes make mistakes that can cost the boat tightness, and one of the most common problems is underheating or overheating of surfaces when glued, and if the PVC is not heated, the glue is not activated and will remain on the surface with a sticky mass, and if you overheat, the material will lose strength and deform.
The second common defect is that moisture or dust gets under the seam, which happens when you're working in a dusty room or when you're in high humidity, and the water that gets between the layers of glue turns into steam when you heat it up, and it forms bubbles that eventually lead to the formation of a bubble. flaking.
The third mistake is the uneven application of glue, the thick layer of glue will not dry inside and will work as a lubricant, not as a binder, the thin layer may not provide sufficient adhesion, you must strictly follow the instructions on the glue package.
What if the liquor is gone?
If the detachment is small (up to 5 cm), you can try gluing the place through a syringe by pumping glue and pressing it tightly. If a large area has moved away or the profile has moved, you will have to completely cut off the old liquor, clean the tissue again and paste a new profile. Reuse of the removed profile is usually impossible due to deformation and residue of old glue.
Reheating and rolling sometimes helps to eliminate small defects such as bloating, but only if the glue has not yet been fully polymerized, otherwise mechanical intervention and gluing are required.
Comparative profile profile profile profile profile profile profile profile profiles
To make it easier for you to navigate the variety of offers, we have compiled a comparative table of the main parameters of the various types of liquors, which will help you choose the best option for your boat.
| Profile type | Materials | Temperature conditions | Application | Difficulty of installation |
|---|---|---|---|---|
| Corner standard | PVC soft | -40...+50°C | Fixing to the transom | Medium |
| Direct docking | PVC medium | -30...+45°C | Connection of cylinders | High. |
| High Pressure (High Pressure) | PVC hard | -50...+60°C | High-pressure boats | High. |
| Flexible (for curves) | PVC elastic | -35...+40°C | Complex geometric shapes | Low. |
As you can see from the table, most amateur boats are suitable for a standard angle profile, but if you plan to operate the boat in extreme conditions or low temperatures, it is worth overpaying for specialized boats. frost-resistant modifications.
Liccas care and prevention of damage
Likpaz, like any part of the boat, requires maintenance. After each foray into the water, especially if it was in salt water or dirty water, the profile must be washed with fresh water. Salt and sand clogged into the groove work as an abrasive, rubbing the back part and making it difficult to assemble.
When storing a boat in a deflated state, it is recommended to slightly powder the profile with talc, this will prevent surfaces from sticking together and preserve the elasticity of the material, it is better to keep the boat in an unstretched form, without strong cavities in the area of the seams.
Use silicone lubricant for the reciprocating portion of the liquor before each assembly, which will make it much easier to insert the balloon into the groove and reduce wear on the edges of the profile.
Regularly inspect the insertion sites for microcracks or detachments, and early detection of a defect will help to fix it quickly and cheaply, preventing more serious damage at the most inopportune time.
Replacement and repair of liquor: when necessary
Sooner or later, a situation may arise when the replacement of the liquor becomes inevitable, the main reasons: mechanical rupture of the profile when hitting a stone, loss of elasticity of the material ("tanning") after many years of operation or production defect.
The replacement process is more complicated than the original sticker, because it requires the removal of the old profile, which must be cut very carefully, trying not to damage the main tissue of the cylinder, often using special knives with a cut depth limiter.
Once the old profile is removed, the surface is cleaned to a clean cloth, and if there are any islets of old glue left on the fabric, they are removed mechanically or by special washing, and then the surface is degreased and prepared for the new element to be pasted using standard technology.
⚠️ Attention: If the load-bearing tissue of the balloon was damaged when removing the old liquor (holes or severe scuffs appeared), first you need to put a patch on the damaged area, and only after that to paste a new profile.
A well-designed replacement allows you to extend the life of the boat for another 5-10 years, making the purchase of a new product unnecessary.
A properly installed liquorizer is a guarantee of the safety and durability of your inflatable boat. Don't waste time and materials on installation.
Frequently Asked Questions (FAQ)
Can you use a regular superglue or a moment to glue lipase?
Absolutely not. Conventional adhesives don't have the elasticity and water resistance that you need, and when you load and deform the balloon, it will crack instantly, and you can only use two-component polyurethane PVC adhesives.
How do you know if the liquor needs to be changed?
Signs: the profile became rigid and brittle, there were cracks in the folds, the boat began to poison the air in the seam area, the balloon "walks" relative to the transom during pumping. If you see cracks, replacement is required.
How long does the glue for liquor dry?
The primary drying time (to the lip) is 10-20 minutes, the complete polymerization, after which you can pump the boat, takes 24 to 72 hours, the lower the temperature, the longer the glue dries.
Can I put the liquor in the cold?
The optimum temperature for gluing is from +15°C to +25°C. In the cold, the glue loses its properties and the PVC becomes brittle. If work is inevitable, warm the surfaces more intensely and dry the glue longer, but it is better to do it in a warm room.
Where to buy a quality liquor?
It is best to go to specialty inflatable boat fittings stores or directly to PVC manufacturers, and markets often sell a low-quality profile that will not withstand the pressure.