SikaFill®-300 Thermic

Classification USGB LEED, SikaFill®-300 Thermic  conforms to the requirements LEED EQ, credit 4.2: Low emission materials Paints & coatings VOC <100 g / l

18 months in the original container.

18 months in its original packaging, tightly closed in a cool place and indoors. Transport with normal precautions for chemical products

0.90 ± 0.02 g/ml approx.

60 ± 2%

28000 - 32000 cPs

1 Mpa

The surface must be dry, healthy and clean, free of dust, cement or mortar slurries, grease or material that prevents the adhesion of the product (on substrates, cementitious it is convenient to remove by mechanical means the surface layer when these situations arise )

The substrate must have the proper slope and be without depressions that result in prolonged or permanent water immersions. The surface humidity should be less than 4% before applying the product. To verify if the product can be applied, it is recommended to place a 50 cm x 50 cm plastic sealed perimetrally with an adhesive tape, at 16 hours observe the humidity condensed under the plastic, if this equals an area greater than 4% of the total plastic area, SikaFill®-300 Thermic system can not be applied directly. (ASTM D 4263-12, method of plastic sheet to measure moisture in concrete). The temperature of the surface and of the air must be between + 5 ° C and 35 ° C, it is not recommended to apply in the hours of greater heating of the surface due to solar radiation.

Degassing is a natural phenomenon of concrete that can produce bubbles in the following product layers applied. The moisture content, the air trapped in the concrete and the surface finish must be carefully checked before beginning any application work. The installation of the membrane when the temperature is descending or stable can reduce the degassing. Therefore, it is generally better to apply the embedded layer in the evening or at night. Print the support and place the reinforced system at all times.

Any additional clarification consult with our Technical Department.

SikaFill®-300 Thermic can bridge existing inactive cracks (without movement) up to 0.7 mm wide. Expansion joints, construction and fissures with movement or exceeding the bridging limits of the product, must be sealed with a material such as Sikaflex-Construction +. The procedure consists of opening the crack with a polisher and cutting disc, removing the dust and drying the substrate very well before applying the sealant. The apatición of new fissures in the concrete and the mortar can break the waterproofing. For this reason it is essential to use Sikafelt FPP-30 reinforcement especially in new works or in areas greater than 10 m² .

The causes of cracks in cementitious materials such as concrete and mortar are:

• The shrinkage by drying, which is the change of volume of the material during the drying process.
• This process can last for 10 years or more, and has a greater impact on the fissuring phenomenon in the first months after the mortar or mortar is placed.
• The contraction by temperature, which is the change in volume of the material due to changes in the temperature of the environment.
• Deflections caused by live or dead charges.
• The settlements of the soil.

To prevent or reduce the number and size of fissures, consider the following:

• Prepare concrete mortars with low cement water ratios
• Use macro and micro fibers in concrete and mortar.
• Design expansion joints on roofs and facades.
• Design adequate thicknesses of roof plates to minimize deflections (see the Colombian Resisting Earthquake Standard)
• Wait at least 28 days after finishing the concrete or mortar, to install the SikaFill®-300 Thermic
• Carry out an adequate curing during the first seven days (curing guide ACI 308).

Note: Be careful when installing the Sikafelt FPP-30 reinforcement fabric that is fully adhered to the surface. Make repairs with the improved mortars with SikaLátex or Sika Viscobond.

To waterproof covers.

• On concrete

Primer:

Dilute the SikaFill®-300 Thermic product between 15% and 20% of potable water in volume and apply with roller, broom or brush on the surface, ensuring that it penetrates well in all the porosities of the substrate, cracks and cracks.

Coating:

Apply the pure product in one or two layers, guaranteeing a maximum consumption of 0.3 Kg / m per layer. When the first coat is cool, install the Sikafelt FPP-30 reinforcement. The product should be applied without pressing the roller or brush against the surface to allow the amount of product required per layer to be applied. Allow to dry completely between layers (Approx 3 hours at 20 ° C and 65% relative humidity), apply two additional layers each of 0.3 Kg / m. This waterproofing with a polyethylene, geotextile or similar, and place new mortar of 3 cm and a hard finish.

• Coating over existing systems (asphalt or polyurethane)

In cases where SikaFill®-300 Thermic is used as a finish, only better performance of the existing system will be achieved in terms of UV resistance, service life extension and / or energy efficiency. If the existing imeprmeable system is not in good condition, it must be removed and SikaFill®-300 Thermic used as a complete system to waterproof covers.

Coating:

SikaFill®-300 Thermic can be used as a cover coating to achieve a UV-stable layer, to extend the service life of existing roofs or as a reflective lining to improve energy efficiency.

Apply SikaFill®-300 Thermic  in one or more layers with a total consumption ≥ 0,9 kg/m² , maximum  0,3 kg/m² /layer. The first layer should be allowed to cure before applying the next.

Note: Make sure that the existing system is firmly attached or mechanically fixed to the support. Bituminous coatings should not be sticky or with loose parts, volatile coatings or old asphalt coatings. Print and use a fully reinforced system.

• On other supports.

On Zinc Tile:

The zinc tile must be resistant. The exposed surfaces must be prepared until a white metal surface is left. Use localizacin reinforcements on the joints and fixings

On wooden supports:

The wooden supports and wooden panels must be in good condition, firmly attached or mechanically fixed.

About Brick and stone:

The mortar joints must be resistant and preferably a cleaning will be carried out. Use localized reinforcement on the joints and print before SikaFill®-300 Thermic application. The surface must be free of dust or particulate material

About Paints / coatings:

Make sure the existing material is strong and firmly attached. Remove any remaining rust and use localized reinforcements on the joints.

Consumption and durability

These consumptions are a theoretical approximation that can vary depending on the type of substrate, the ruggosity of the surface and the methods of application.

Note: Applying these consumptions of the table ensures a dry film of 0.6 mm thickness (for reinforced system on concrete) This waterproofing system has an approximate durability of 12 years with preventive maintenance every 6 years. To achieve the expected performance of the product, consider the following:

Preventive Maintenance:

This maintenance consists of applying an additional layer of Sika to renew the waterproofing system and extend its durability. To carry out the maintenance, an adequate cleaning must be carried out, in which all the substances that impede the durability of the product, such as dust, grease, etc., are eliminated. It is necessary to repair the areas of product that are damaged by punching, cracking of the substrate, faults by adhesion (by dalla of the substrate) or blistering of the waterproof film (by water immersion). The cracks that are identified must be marked with Sikaflex-Construction +.

Periodics inspections.

It is recommended to perform periodic inspections every 3 months, which consitute in the visual review of the roof system, to verify its status and perform cleaning activities and punctual repairs if required :

1. Verify the integrity of the waterproof film and repair it punctually in the areas where breakages, failure due to adhesion, puncture, tearing, blistering or cracking are identified, caused by traffic, impoundment, etc.
2. Clean the cover to remove short-pointed elements such as stones, glass, screws, nails, wooden sticks, metal rods, etc. That can cause breakage to the waterproof system.
3. Check and clean the siphons to avoid plugging and therefore rain water impoverishment.
4. Identify areas with temporary or continuous water impoundments and repair them if necessary, applying additional layers of product.

Note: It is important to keep in mind that the greater the film thickness of the application, the longer the life of the waterproofing.