Polyurethane sealant HYPERSEAL EXPERT 150 Grey 600 cc RAL 740

Polyurethane sealant HYPERSEAL EXPERT 150 Gray: a universal solution for sealing

Polyurethane sealant HYPERSEAL EXPERT 150 from the Greek company ALCHIMICA SA is a modern one-component material designed for reliable sealing of joints in construction and repair. Thanks to its unique formula, it provides high adhesion to various surfaces, resistance to difficult climatic conditions and durability. This sealant is ideal for professional and domestic use, guaranteeing a high-quality result even in the most demanding projects.

Features and benefits of sealant

HYPERSEAL EXPERT 150 is distinguished by its versatility and adaptability to various operating conditions. It is designed to work in environments with high humidity, temperature extremes and even in contact with chemically active substances. Thanks to the modified formula, the sealant does not lose its properties in difficult weather conditions, which makes it indispensable for external and internal work.

• High adhesion: provides strong adhesion to materials such as concrete, aluminum, glass, polycarbonate, ceramics, marble and granite, even without prior priming.
• Temperature resistance: Maintains elasticity in the range of -40°C to +60°C, which allows it to be used in extreme climatic zones.
• No defects: Does not form bubbles during polymerization, even at high humidity or temperature.
• Thixotropy: Thanks to its optimal consistency, the sealant does not run off vertical surfaces, which makes application easier.
• Chemical resistance: Withstands the effects of aggressive environments such as salts, alkalis and weak acids.
• Biological resistance: Resistant to fungi and microorganisms, ensuring hygienic seams in wet areas.

Areas of application

Polyurethane sealant HYPERSEAL EXPERT 150 is used in a wide range of construction and repair works. Its versatility allows the material to be used in both large-scale industrial projects and small household tasks. Here are the key areas where the sealant demonstrates its effectiveness:

• Sealing joints in concrete and reinforced concrete: used to fill expansion and contraction joints in monolithic structures, bridges and tunnels.
• Working with stonework: Ideal for sealing joints in brick, granite or marble surfaces.
• Sealing of tanks: Used in water storage tanks, including drinking water, due to its safety and resistance to moisture.
• Windows and facades: Used to seal aluminum frames, sandwich panels and double-glazed windows, providing protection against leaks and heat loss.
• Internal works: Used for processing seams in bathrooms, kitchens and other rooms with high humidity.

For example, during the reconstruction of an industrial facility in Ukraine, HYPERSEAL EXPERT 150 was used to seal joints in concrete slabs. Thanks to its high adhesion and resistance to vibrations, the sealant provided reliable protection against moisture penetration, which extended the service life of the structure.

Application recommendations

To achieve optimal results, it is important to properly prepare the surface and follow the application technology. HYPERSEAL EXPERT 150 easy to use but requires attention to detail to ensure maximum efficiency.

• Surface preparation: The surface must be dry, clean, free of dust, grease, rust or old sealant residues. Use mechanical methods to remove contaminants, avoiding aggressive chemicals.
• Cleaning seams: Before applying the sealant, the seams must be thoroughly cleaned of organic and mechanical impurities.
• Using a tourniquet: To adjust the seam depth (optimally 3–5 mm or half the width of the seam) use a polyethylene foam or polystyrene foam harness of the appropriate diameter.
• Causing: The sealant is applied using a mechanical or pneumatic gun. For small jobs, a spatula can be used. Fill the joint evenly, avoiding voids.
• Smoothing: After application, smooth the surface of the sealant with a water-dampened tool for 6–8 minutesto avoid film formation.

Our experience shows that using a pneumatic gun significantly speeds up the application process, especially when working with large areas, for example, when sealing the facades of multi-storey buildings. This allows for uniform filling of joints and reduces material consumption.

Cleaning tools

After completing the work, tools must be cleaned as soon as possible to prevent the sealant from drying out. HYPERSEAL EXPERT 150 When fresh, it is easily removed from surfaces and tools, making equipment maintenance easier.

• Fresh sealant: Remove residue with alcohol or acetone. To do this, moisten a cloth in the solvent and wipe the tool.
• Dried sealant: To remove hardened material, use mechanical methods, such as a scraper, or special products for removing polyurethane sealants.

Important! Avoid getting solvents on sealed seams to avoid damaging the freshly applied material.

Safety measures

Although HYPERSEAL EXPERT 150 It is a low-hazard material, and standard safety precautions must be followed when working with it to protect health and ensure comfort.

• Ventilation: Work in well-ventilated areas to avoid inhaling fumes during polymerization.
• Protective equipment: Use gloves and safety glasses to prevent sealant from coming into contact with skin and eyes.
• Avoiding contact: Avoid contact with exposed skin. In case of contact, wash affected area immediately with soap and water.

In our experience, using nitrile protective gloves provides reliable protection and does not restrict hand mobility, which is especially important when applying sealant precisely.

Usage restrictions

Despite its versatility, HYPERSEAL EXPERT 150 has certain limitations that must be taken into account to ensure the durability of the seams and operational safety.

• Avoiding direct sunlight: The sealant is not recommended for surfaces that are constantly exposed to ultraviolet light, as this may lead to degradation of the material.
• Dry surfaces: Do not apply sealant to wet or chemically active substrates to avoid adhesion failure.
• Lack of staining: Polyurethane sealant cannot be painted, so choose a gray color that will blend in with most surfaces.

For example, when sealing joints in a water tank, we recommend thoroughly drying the surface before application to ensure maximum adhesion and tightness.

Practical experience of the company

Our company has many years of experience working with polyurethane sealants, including HYPERSEAL EXPERT 150. We have successfully used this material in projects of varying complexity – from sealing joints in industrial buildings to finishing the facades of residential complexes. The unique formula of the sealant allows us to guarantee customers the durability and reliability of structures even in regions with harsh climatic conditions, for example, in coastal areas with high humidity.

One of our projects involved sealing expansion joints in a bridge structure. Thanks to its thixotropic properties and vibration resistance, HYPERSEAL EXPERT 150 provided perfect filling of the joints, which allowed the structure to withstand constant loads without the formation of cracks.

Application conditions and technical characteristics of polyurethane sealant

Operating temperature (air and substrate) from +5°C to +35°C, at least 3°C above dew point

Application at low temperatures Allowed up to -15°C if the sealant is previously stored in a warm room and on a dry surface (without ice). The polymerization time is increased.

Consumption rate 100 ml/volume m (with a seam cross-section of 1 cm2)

Packaging 600 ml tubes Color White, gray, black, beige