Yearly Archives - 2018

CONCRETE FLOOR COATING

Concrete floor can truly result in an incredibly beautiful floor where unlimited self expression can be reached. Limited in industries till new, it is growing in popularity as more homeowners realize the fantastic benefits of concrete floors. Additionally, new processes and technologies have been developed to make concrete one of the most affordable and versatile flooring materials.

JUSTIFICATION FOR USE OF CONCRETE FLOOR COATING

We must remember that no other surface in a building takes more abuse than floors, regardless of the type of building, be it industrial or commercial. While a bare concrete floor can with stand tremendous weight and pressure, it is relatively porous and susceptibility to significant damage when left untreated or uncoated. If exposed to regular foot traffic or the demands of a commercial environment, concrete will readily absorb dirt, chemicals, oils and other spillages. This often results in stains, cracks and abrasions that can make the floor impossible to clean and unattractive in appearance. Hence all concrete floors need some sort of protection regardless of where they are located. Over the last few years, the protection of concrete floors has gone from essentially nothing to a fairly sophisticated process of some type of protective coating or surfacing. The main purpose is to provide protection to the slab from deterioration or contamination or to provide some added benefits such as aesthetics, wear, non skid, chemical resistance, ease of maintenance and different other properties. How to choose the protective material for concrete floor in different conditions? Whether you are constructing a new concrete floor or revamping an old one, there are different coatings you can choose to finish the project. We are focusing on coatings that are bonded directly to the surface and offer long term protection and may or may not have some aesthetic value. Typical coatings that are mostly used for concrete floors include acrylics, polyurethane, epoxy, or specialized elastomeric liquid membrane coating etc. However, before applying any new coatings to your floor just make sure that the ingredients are free from any chemical reactions that can cause significant damage to the floors. Industrial epoxy floor coatings are beneficial in order to maintain a safe, durable concrete surface besides proving it with a new and improved look.

SURFACE EVALUTION

 The first step in the selection process is to evaluate the existing surface to determine what you are working with. The surface must be structurally sound, clean and must not be contaminated with any foreign material that could interfere with the bond of a new coating system. This includes concrete curing compounds.
 Other critical things to consider are: is the surface distressed in any way? Does it have cracks, spills, or unevenness? Does the coating system required a level floor or one that slopes to a drain? What type of surface preparation is needed for the area in question? It is the most important step in the installation process and is critical to long-term performance of the total system.

PERFORMANCE CONDITIONS

 Chemical exposure: Severity of the exposure and types of chemicals are both very important. Materials differ widely in chemical resistance, making identifying the exposure very important. Common splash and spills also are far less critical than constant immersion.
 Abrasion: The amount of wear or traffic on a surface will make important criteria. Are there steel wheel or rubber wheel.
FAIRMATE | In technical collaboration with M/s. RBP Ltd. UK 3
 Impact and Thermal shock: Heavy loads and direct impact require a heavier build or thicker floor system. Temperature fluctuation or thermal shock, such as steam cleaning of the floor surface, will cause a loss of bond from thermal expansion if the floor system is not chosen properly.

COST

Economy is the top requirement. At times, low cost systems will prevail at the expense of more durable systems. Generally when other parameters are exhausted, you get what you pay for. Another generally accepted rule is that the thicker the applied system, the better the performance.

APPLICATION AND POST APPLICATION

Once the surface has been leveled the material must be applied and the job inspected and approved. The choice of an appropriate contractor to install the system is just as important as the material used. A contractor trained to install a particular system. The job does not end with the application of material. A long term review, maintenance and repair programme. Should be established for continued performance and satisfaction. Post application, even the most durable surface might show areas of distress in future that may require attention. A small amount of attention before installation will prolong the life of a flooring system. The whole project is to create a low maintenance situation, so spending more money on the best materials and the extra time spent on preparation time is well worth it.

WATERGUARD PU LIQUID MEMBRANE

POLYURETHANE BASED TOUGH ELASTOMERIC WATERPROOFING MEMBRANE

DESCRIPTION

Waterguard PU Liquid Membrane is a pitch extended polyurethane based elastomeric coating, formulated to give long lasting, maintenance free, and superior waterproofing protection for concrete and steel structures.

BENEFITS

 Chemical resistant: Resists deterioration from dilute acids and alkali, oil, salts, bacteria, and common fuels.
 Single component, Easy to apply.
 Applied by roller, brush, or airless spray.
 Tenacious adhesion and high elastic recovery.
 Long term resistance to ponded water.
 High elongation, permits membrane to stretch with movement in the substrate.
 Excellent crack bridging properties.
 Continuous monolithic (seamless) layer completely bonded to the substrate, eliminates horizontal migration of water between membrane and the substrate. Thus if the membrane is punctured, a leak can only occur directly below the damaged section of the membrane, allowing fast location and inexpensive repairs.

RECOMMENDED USES

Waterguard PU Liquid Membrane is used as a waterproofing or vapor barrier for protection of Foundations & Basement, Ground floors, Kitchens & bathrooms, Split slab, Terraces, balconies & patios, Car Park decks, Inverted roofs & sunken slabs, Tunnels.

APPLICATION INSTRUCTIONS

Surface Preparation:

Surface must be structurally sound, clean dry and free from dust, grease, curing compounds, paint coatings, and other loose debris. Surface should ideally have a “sand paper” profile roughness. Recommended methods for preparing concrete are by sand or captive shot blasting; wire brushing or by pneumatic (scabbling) tools. Shrinkage and non structural cracks should be pre-treated with a 1mm thick coating of WATERGUARD PU LIQUID MEMBRANE reinforced with WATERGUARD GRS – fiber reinforce sheet extending at least 50mm on both sides of the crack. Allow to cure for 24 hours. Right angle or corner should have cant strips installed. A suitable cant strip can be prepared by mixing 1 part cement and 1 part fine clean sand and FAIRCRETE FBR additive. First apply 0.5mm thick WATERGUARD PU LIQUID MEMBRANE on the corners. Embed a 100mm width reinforcing WATERGUARD GRS – fiber reinforce sheet on the bedding coat then apply a second coat of WATERGUARD PU LIQUID MEMBRANE 0.5mm thick completely covering the reinforcement. Allow to cure at least 12 – 24 hours. Install mortar canting on the corners extending on both sides by 50mm. Allow cure for 24 hours prior to general application.
Priming:
Normally WATERGUARD PU LIQUID MEMBRANE can be applied directly onto the surface and does not require priming.

Application:

The product requires thorough mixing (for at least 3 – 5 minutes) with a mechanical drill (300-400 rpm) fitted with a proprietor paddle prior to application so that a homogenous mix is achieved. Application should commence as soon as product mixing is completed. Apply the coating at 1.2 kg/m²/coat to achieve a dry film thickness of 1000 microns. The coating can be applied in either one or two coats. If applying in two coats ensure that the second coat is applied only after the first coat has become tack free. The second coat is recommended to be applied in the opposite direction to the first coat as this will allow the polyurethane in the mix to be distributed more uniformly. The coating will achieve its full mechanical properties after a period of 7 days.