We offer the Polyurethane waterproofing
solution that’s perfect for:

          

Join the Polyurethane Revolution

ALCHIMICA is a dynamic company specializing in the development and production of specialty polyurethane materials for construction and industrial applications. For over 25 years, ALCHIMICA has successfully provided products and services to architects, engineers, home builders, contractors and building owners worldwide. Our 1 and 2 part polyurethane systems have a proven track record of high performance in numerous prestigious construction works around the world. In addition, our industrial spray coatings are trusted as industrial waterproofing and insulating solutions, even in the most demanding of cases, e.g. construction of health-sensitive water drinking reservoirs, restoration of aged buildings and waterproofing of bridge platforms.

ALCHIMICA are technological leaders by offering a whole range of special solutions and customized products in the following categories throughout the building:

  • Foundations
    • Wet rooms, under tile
    • Balconies and terraces / patio
    • Flooring Products
    • Roof Waterproofing
    • Water Tanks
    • Car Parks
    • Wooden Decks
    • Skylights

PRODUCTS:

HYPERDESMO®-PB-Mono is a quick-curing, one component, thixotropic, bitumen-extended polyurethane fluid. It produces a hydrophobic, elastic membrane with very strong adhesion to most types of substrates, as well as bituminous, and excellent mechanical and chemical resistance properties. It is ideal for application on vertical surfaces: No running, no bubbling.

It is based on pure elastomeric hydrophobic polyurethane resin and is extended with chemically polymerised virgin bitumen.

Apply with brush or spatula. Total consumption: 2.0 kg/m2 in one or two coats.

 

RECOMMENDED FOR

Waterproofing and protection of:

  • Gypsum and cement boards,
  • asphalt membranes (for repair also),
  • cementitious substrates,
  • roofs,
  • light roofing made of metal or fibrous cement,
  • basements,
  • foundations,
  • closed spaces with high humidity.
FEATURES & BENEFITS
  • Economic
    • Thixotropic: Easily applied o
  • n vertical surfaces and complex shapes without running or bubbling.
    • Excellent adhesion on almost any type of surface, with or without the use of special primers.
    • Excellent thermal resistance, the product never turns soft. Max service temperature 80oC, max shock temperature 150oC.
    • Resistance in the cold: The film remains elastic even down to -40oC.
    • Outstanding mechanical properties, high elongation, tensile and tear strength, high abrasion resistance.
    • Excellent chemical resistance.
    • Effective humidity barrier.

HYPERDESMO®-CLASSIC is a simple and economic solution for waterproofing and protection. It is a one component, low viscosity, polyurethane fluid which cures with the humidity in the atmosphere to produce a highly elastic membrane with strong adhesion to many types of surfaces.

The product is based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, which result in excellent mechanical, chemical, thermal, UV and natural element resistance properties.

Apply with brush, roller or airless spraying in two coats. Minimum total consump

tion: 1.2-1.5 kg/m2.

Waterproofing coating  for protection of:

  • Gypsum and cement boards,
  • tiles (underneath),
  • roofs,
  • light roofing made of metal or fibrous cement,
  • asphalt membranes.
FEATURES & BENEFITS
  • No thinning is required but SOLVENT-01 may be used.
    • Excellent weather and UV resistance. The white colour reflects much of the solar energy and so reduces the internal temperature of buildings considerably.
    • Excellent thermal resistance, the product never turns soft. Max service temperature 80oC, max shock temperature 200oC.
    • Resistance in the cold: The film remains elastic even down to -40oC.
    • Excellent mechanical properties.
    • Good chemical resistance.
    • Non-toxic after full cure.
    • Water vapor transmission: The film breathes so there is no accumulation of humidity under the coat.

 

HYPERDESMO®-D is a one component polyurethane fluid which cures with the humidity in the atmosphere. It produces a very strong membrane with outstanding adhesion to many types of surfaces and excellent chemical and hydrolysis resistance properties.

Ideal for protecting metal structures against corrosion. Suitable for chemicals and effluent treatment tanks and sewage tubes. It is highly resistant to gases produced during waste water treatment, e.g. methane, hydrogen sulphide etc..

Apply with brush, roller or airless spraying in one or two coats with maximum consumption per coat of 150 gr/m2. Thinning is not necessary.

When exposed to sunlight, directly or indirectly, HYPERDESMO®-D has the tendency to discolour (yellowing). To preserve colours, a protective topcoat of HYPERDESMO®-ADY-E (always pigmented) is required.

Waterproofing and protection of:

  • Metal structures,
  • concrete,
  • industrial floors,
  • car parks,
  • refrigeration units,
  • tanks for chemicals,
  • waste water treatment tanks,
  • pipes (inside).
FEATURES AND BENEFITS
  • Quick curing.
    • Excellent adhesion on almost any type of surface.
    • Completely hydrophobic.
    • Excellent thermal resistance, the product never turns soft. Max service temperature 80 oC, max shock temperature 200 oC.
    • Excellent mechanical properties, high tensile and tear strength, high abrasion resistance.
    • Excellent chemical resistance.

 

HYPERDESMO®- S-WR is a result of Alchimica’s investment in new production facilities and polymerization procedures. This investment facilitated the manufacture of a low solvent Hyperdesmo® i.e a non-flammable material without hazardous transportation limitations (non-imo).

The product is a one component polyurethane fluid which cures with the humidity in the atmosphere. It produces a highly elastic, hydrophobic membrane and has been designed to offer excellent long term waterproofing of wet rooms, substructures and any application not exposed to UV. The rheology of the material is such that it allows easy application even on vertical substrates.

The use of all Hyperdesmo® range additives is possible: Accelerator 3000, Thixo Tool, Solvent 01 and Alchimica pigment pastes.

Full range of Primers used in classic Hyperdesmo system applies to HYPERDESMO®-S as well.

Apply with brush, roller or airless spraying in one or two coats with minimum total consumption of 1.5 kg/m2.

RECOMMENDED FOR

Waterproofing and protection of:

  • Wet rooms
  • Foundation walls
  • Flat roofs, under tile or screed,
  • verandas and balconies (under protection)
FEATURES & BENEFITS
  • Highly Elastic
    • Easy application even on vertical substrates
    • Resistance to cold: The film remains elastic even down to -40 oC.
    • Non-toxic after full cure.
    • Water vapor transmission: The film breathes so there is no accumulation of humidity under the coat.
    • Special primers available for almost any substrate.

 

HYPERDESMO®-T is a one component high solids, polyurethane fluid, which cures with the humidity in the atmosphere. It produces an elastic, highly durable, highly hydrophobic membrane with excellent UV resistance. Being aliphatic, it does not yellow/discolour when exposed to sunlight.

It is based on pure elastomeric, hydrophobic, aliphatic polyurethane resin, which results in excellent mechanical, chemical, thermal, UV and natural element resistance properties.

Apply with roller in one or two coats. Minimum total consumption: 0.2-1.0 kg/m2. Although HYPERDESMO®-T looks coloured, especially when it is in large containers, it is stressed that the end result is, indeed, transparent.

RECOMMENDED FOR

Waterproofing and protection of:

  • Tiles,
  • natural stone,
  • wood,
  • verandas and balconies,
  • terraces.

Also suitable for sealing concrete: Applied in thick, bubble-free, coats.

FEATURES & BENEFITS
  • No thinning is required but SOLVENT-01 may be used.
    • Excellent weather and UV resistance.
    • Excellent thermal resistance, the product never turns soft. Max service temperature 80oC, max shock temperature 200oC.
    • Resistance to cold: The film remains elastic even down to -40oC.
    • Excellent mechanical properties.
    • Good chemical resistance.
    • Water vapor transmission.
    • Can also be applied in thick, bubble-free, coats.

 

HYPERDESMO®-2K-W is a two-component, solvent-free, thixotropic coating, based on high quality elastomeric polyurethane resins. After polymerization it produces a strong, elastic, hydrophobic membrane suitable for waterproofing and protection. It is recommended for waterproofing of water tanks. It has been certified for use in potable water tanks (more details available on request from our technical department).

Apply with roller in two coats with consumption per coat of 700 gr/m2. On the tank floor, a single coat of 1400 gr/m2 is sufficient.

On tank surfaces with direct exposure to sunlight, HYPERDESMO®-2K-W will discolor. This is purely visual, it does not affect the performance of the product.

RECOMMENDED FOR

Waterproofing and protection of:

  • Water tanks made of concrete, steel or other material,
  • prefabricated concrete tanks,
  • drinking water tanks,
  • tanks with wall movement due to expansion and contraction.
FEATURES & BENEFITS
  • Excellent adhesion on almost any type of surface.
    • Being solvent-less, it can easily be applied in closed spaces.
    • Extremely hydrophobic and hydrolysis resistant.
    • Wide working temperature range: -40 oC to 90 oC.
    • Good chemical resistance.
    • Certified for potable water tanks, in accordance with the latest European Union requirements.
    • The best value, performance-to-cost, solution for water tanks.
    • Special primers, topcoats and coloring pastes are available.

 

AQUADUR is a two-component, water based, epoxy coating. It has a track record of more than 20 years of successful use as primer for the HYPERDESMO® line of products, as well as other ALCHIMICATM polyurethane based products.

It is certified as “Class III” water and humidity barrier, which makes it ideal for applications subject to negative pressure / rising humidity.

An easy to use and safe (zero VOC) product with many applications besides priming. mproperly chosen sealants can cause staining or etching of the substrate and loss of sealant adhesion.

Use as:

  • Primer in applications with rising humidity /negative pressure (tanks, pools, foundations etc.),
  • primer for other systems, e.g. epoxy or polyurethane based, cementitious,
  • sealing coat for concrete,
  • adhesive layer between old and new concrete,
  • water / humidity barrier.
FEATURES AND BENEFITS
  • Highly effective water/humidity barrier.
    • Easy application (water based).
    • Low-odor, safe and non-flammable (zero VOC).
    • Suitable for application in closed spaces.
    • Easy clean-up.
    • Strong adhesion even on damp or green concrete.
    Also on iron, galvanized steel, aluminium, glass and wood.
    • Good mechanical properties and abrasion resistance.

 

AQUASMART® PU-2K waterproofing kit is a complete system for waterproofing and protection of roofs. It is comprised of the main waterproofing membrane AQUASMART® PU-2K a two component, water based, aliphatic coating with exceptional performance in a multitude of applications; and a geotextile reinforcement layer.

The system displays excellent water, chemical and UV resistance combined with exceptional ease of application. Due to the thixotropic nature it is easily applied on any surface no matter how complex.

Apply with brush, roller or airless spraying in two or more coats with minimum consumption 2,7Kg/m2.

Waterproofing and protection of:

  • PU foam,
  • Roofs,
  • light roofing made of metal or fibrous cement.
FEATURES & BENEFITS
  • Water based
    • Easy to apply & repair.
    • Thixotropic
    • Excellent abrasion resistance
    • Seamless.
    • Elastic.
    • Capable of bridging small cracks.
    • Highly resistant to stagnating water.
    • Water vapor transmission: The film breathes so there is no accumulation of humidity under the coat.
    • Excellent weather and UV resistance. The white colour reflects much of the solar energy and so reduces the internal temperature of structures considerably.
    • Easy coloring of product with almost any water based pigment paste available at hardware stores.

 

WATERFOAM™-FHF and WATERFOAM™-1K-LV is a one component polyurethane, hydrophobic resin, which reacts with water to produce an inflexible, heavy duty grout suitable for waterproofing and sealing cracks and joints of concrete surfaces, and for effectively stopping water leaks.

Recommended for use on concrete subject to severe structural movements (seismic activity), vehicular traffic, etc..

Application is by one component injection pump.

Stopping water leaks in such structures as:

  • Foundations,
  • below-grade structures, e.g. garages,
  • tunnels & underpasses,
  • sewage systems,
  • tanks,
  • waterways & dams.
FEATURES & BENEFITS
  • Effective sealer of cracks & voids in concrete, especially in joints.
    • Of low viscosity: Deep penetration with minimal  pressure.
    • Produces a flexible & completely hydrophobic foam.
    • Easy to apply: One component with a very reasonable pot-life.
    • Highly resistant to fungi and other microorganisms.
    • Friendly to the user and the environment:
    Contains no solvents or propellant gasses – safe to store, transport and use.

 

Joint Sealants are used to seal joints and gaps between two or more substrates, and are a critical component for modern building design and construction.

The main purpose of sealants is to prevent air, water, and other environmental elements from entering or exiting a structure while permitting limited movement of the substrates.

Sealants are often the least thought about and contribute a low percentage to a project’s overall cost; however, they can become a serious, or for hidden or concealed joints, an impossible problem to correct.

It is therefore crucial to not only properly design the joint, but to use a sealant that will perform in the most optimum way for the longest duration.

Proper sealant selection also entails avoiding incompatibility between the sealant and the substrate.

Improperly chosen sealants can cause staining or etching of the substrate and loss of sealant adhesion.

Alchimica range of joint sealants is based on novel polyurethane-hybrid technology and cover applications such as:

  • Civil engineering construction joints
  • Façade joints
  • Window-door insulation
  • Water tanks-sewage treatment plants
  • Bridge deck
  • D.I.Y.