Water Management


Water Management

Guaranteeing the availability of water in sufficient quantity and quality will be one of the main global problems to be solved in this century. In this sense, the harmonisation of these infrastructures with the environment, as well as their adequate safety, will be aspects increasingly demanded by society.

Water is also one of the main aggressive agents to be taken into account in the construction of infrastructures since, either directly or as a carrier of active ions, it can act on the components of concrete and steel, producing a progressive degradation that reduces the useful life of the structure or water treatment installation.

The new TeimLam® system consists of a continuous coating formed “in situ” based on a synergistic combination of state-of-the-art polymeric binders and reinforcements with selected fibres. It is equipped with a self-protection layer in accordance with the expected applications (chemical attack, U/V radiation, specific aggressive agents in the environment, light, medium or heavy traffic, etc.), smooth or non-slip finishes and can be presented in any colour. It can also be applied with different thicknesses, from one to five millimetres, depending on the requirements of use, even on adhered thermal insulation.



Water is a basic necessity, but it is also a scarce commodity in many parts of the world.

That is why the infrastructures built to control the drinking water cycle have been a fundamental part of any state in recent years.

The Teimper Group‘s commitment to preserve these infrastructures for as long as possible is absolute, always complying with the most demanding quality, hygiene and health criteria.

For this reason, GAIRESA,

began working almost 30 years ago on a coating for tanks intended to contain drinking water (and other food liquids) with a high waterproofing and protective capacity against the prolonged action of the liquid in contact. All these necessary conditions would be insufficient if the coating did not comply in toxicological terms.

It is not difficult to infer that the requirements were clearly inferior to those of today and, consequently, the regulations that governed them followed parallel paths.

For the development of the coating, GAIRESA contacted the Departament of Bromatology of the  University of Santiago de Compostela, where we would find the support we were looking for.

The coating was formulated by GAIRESA and tested at the University in accordance with the following EU directives: 82/711/CEE  85/572/CEE.

The formulation was developed considering the migrations permitted in the aforementioned directives until we found the formulation that complied with the requirements (third attempt) and the corresponding report was issued on 1st September 1991, the date on which its commercial introduction began, which has grown massively to date as a result of its faultless performance. As a result of the mandatory analytical studies, we have published a series of articles in the most prestigious international magazines and a large part of the analytical methodology, as well as the discovery of the hydrolysis of the base resin, have been adopted by the European community, integrating them into the current regulations and procedures for the control of epoxy coatings. Undoubtedly, BEPOX 889 marks a beginning in Europe for this type of formulations. Naturally, BEPOX 889 is analytically updated as regulations change over time.



It is clear that the quality of a construction has an influence on the time it takes for failures to manifest themselves, but what is really true is that the limitations of the chemical resistance of concrete, as a fundamental material for the construction of infrastructures, means that it is increasingly necessary to use technical complements in the form of a chemical protection coating to achieve the objectives of slowing down the ageing of the structure.



The structural guarantee and the correct functioning of a water management infrastructure is linked to its capacity to withstand the ageing actions derived from the action of water, both through its direct effects and as a carrier of degrading agents…

Therefore, applied chemical technology efforts should focus on obtaining a coating capable of meeting the following objectives:

In order for the overall results to be optimal, a number of fundamental quality principles must concur:


    Resin injections at different viscosities

    To restore structural continuity, we develop various injection methods at pressures of 1 to 150 bar. We use Epoxy formulations with different viscosities, adherent on wet or dry surfaces, different elastic modulus and low exotherm in large masses, according to the requirements of each project.


    Joint treatment suitable for drinking water

    High thixotropy formulations based on state-of-the-art elastomers, with elongations of more than 500%, high impermeability, excellent chemical resistance and maintained adhesion to concrete, provide a reliable solution over a correctly sized joint. In most cases, it is advisable to complement this with a flexible laminate bridging the joint.


    Teimpox® structural regeneration system

    Construction complement in the form of thixotropic mortar or micro-mortar with high mechanical properties for the regeneration of degraded or defective coatings on concrete structures, and necessary for the prior preparation of the substrates.


    Teimlam® composite

    It consists of a continuous coating formed "in situ" based on a synergistic combination of state-of-the-art polymeric binders and selected fibre reinforcements. It has several fundamental characteristics such as: resistance to underpressure, crack and fissure bridging capacity, high waterproofing coefficient and excellent resistance to ageing while maintaining its properties over a reasonable period of time.


    BEPOX 889 Sanitary coating

    30 years ago we started working on a coating for tanks intended to contain drinking water with a high waterproofing and protective capacity against the prolonged action of the liquid in contact and which also met all the toxicological criteria. This system provides a hygienic finish and "zero migration" from the first day of contact with water. BEPOX 889 undoubtedly marks the beginning of this type of formulation in Europe.




Reservoirs are one of the main drivers of the economy: they supply drinking water to cities, irrigate crops, control floods and generate electricity in hydroelectric power plants. The long tradition of dam building in our country is well known. This construction process dates back to Roman times and is marked by technological milestones, such as the Almansa arch dam, the oldest operating dam in Europe (1584).

As a result, more than a third of the reservoirs currently in operation were built before 1960. As a result, research and development of products and systems for the conservation and rehabilitation of this fixed capital asset has been strongly developed, with the aim of maintaining it in operating and safety conditions in line with modern requirements.




Once the water has been stored, it must be transported to the various places of consumption. Since Roman times, this has been achieved through canals and aqueducts.
It is becoming increasingly important to keep the watercourses of these structures with the minimum possible loss of water.
The environmental and terrain conditions to which they are exposed produce continuous movements that favour the appearance of cracks and fissures. fissures and cracks.
Our custom-designed treatment systems adapt to the particular conditions of each structure and to the particular conditions of each structure and its technical requirements.



Drinking water tanks are key elements in a water supply network. In densely populated areas, the presence of one or more drinking water tanks is essential. They are the link between the water collection and treatment systems and the water supply network, and are used to regulate the flow rate.

The type and condition of the materials that make up the internal surfaces of the tanks in direct contact with the stored drinking water are of vital importance to avoid alteration or contamination of the water supplied.

All tanks eventually develop problems on the surfaces in contact with water during their lifetime, and must be repaired so that the quality of the water does not deteriorate. The rest of the structure and elements of the tanks (ceilings, roofs, external walls, etc.), due to numerous external actions, also present problems both in terms of watertightness and structure.


Treatment Plants

The fundamental thesis for wastewater pollution control has been to treat wastewater in treatment plants that are part of the pollutant removal process and let nature complete the process in the receiving body. For this, the level of treatment required is a function of the natural self-purification capacity of the receiving body.

At the same time, the natural self-purification capacity is primarily a function of the flow of the receiving body, its oxygen content, and its “ability” to re-oxygenate.

The objective of wastewater treatment is therefore to produce an environmentally reusable effluent and a solid waste or sludge (also called biosolid or sludge) suitable for disposal or reuse. This whole series of treatments to which the water is subjected, together with the physical, chemical and mechanical characteristics of the water itself, make these infrastructures one of the most complex for the maintenance of their constructive elements.



A pipe is a conduit that fulfils the function of transporting water or other fluids. It is usually made of very different materials, with those made of steel being the most common. As is well known, metal pipes for water (potable or not) are made up of pieces with certain dimensions welded together.

The usual manufacturing process includes coating, both inside and outside, in the factory. We must also treat all the joints between pipes.


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