Sika® Duroplast 150

Potential LEED® Canada Credits

• Meets the requirements of CFIA and USDA for use in food plants.

1 year in original, unopened packaging under proper storage conditions. 

Store dry at temperatures between 5 °C to 32 °C (41 °F to 89 °F).

Protect from freezing. If frozen, discard.

~50 %

~138 g/L

Consult Sika® Canada

A:B = 4:1 by volume

cold water - maximum 5% by volume

Always add the same quantity of water in order to minimize variations in colour and final finish.

Condition product between 18 °C to 24 °C (65 °F to 75 °F)

Minimum 10 °C (50 °F )   Maximum 30 °C (86 °F)  

Maximum 75 % (during application and curing).

Sika® Duroplast 150 should not be applied when the ambient air relative humidity is > 75% as curing times will be longer and water will be retained in the film reducing ultimate coating performance.  Provide adequate fresh air ventilation to remove the excess moisture from the curing product.

Beware of condensation! The substrate must be at least 3 °C (5 °F) above the Dew Point to reduce the risk of condensation, which may lead to adhesion failure or “blushing” on the finish. Be aware that the substrate temperature may be lower than the ambient air temperature.

Minimum 10 °C (50 °F )   Maximum 30 °C (86 °F)  

Do not apply while ambient and substrate temperatures are rising, as pinholes may occur.  Ensure there is no vapor drive at the time of application. Refer to ASTM D4263 for a visual indication of vapor drive.

Maximum moisture content of all concrete substrates must be < 4 % by mass (pbw - part by weight) when measured with a calibrated moisture meter for concrete (Tramex CME/CMExpert). Masonry surfaces, gypsum board and plaster must be below 85 (green zone on the reference scale) when measured with a calibrated electronic moisture meter (Delmhorst Model BD-10).

Minimum age of concrete and masonry surfaces prior to application: 28 days (depending on curing and drying conditions).

Minimum age of SikaTop® or Sika MonoTop® mortar prior to application: three (3) days, depending on curing and drying conditions. Moisture content must be < 4 % by mass (pbw - parts by weight) when measured with a calibrated moisture meter for concrete (Tramex CME/CMExpert).

NOTE:  Do not apply after six (6) hours even if still liquid, as this will result in lower gloss, loss of chemical resistance and physical properties.

Curing times will vary according to air and substrate temperatures and relative humidity. 

Freshly applied material should be protected from dampness, condensation and water for at least 24 hours.

Mechanical, chemical and physical properties will be fully achieved at full cure.

Note: If the Waiting/ Recoat time has passed the previous coat must be lightly sanded, to remove all gloss; vacuum cleaning and solvent wiping will be necessary to remove all traces of dust. The surface should be a uniform dullness, with no gloss present after clean-up and before applying the next coat.

6.5 m²/L to 9.8 m²/L (265 ft²/US gal to 400 ft²/US gal) per coat

(4 to 6 mil w.f.t.) (2 to 3 mil d.f.t.)

Typically two coats are required, though on higher absorbency substrates additional coats may be required.  Actual coverage rates and material

consumption will depend upon porosity and profile of the substrate.

Test areas are recommended to establish correct coverage rates.

General Substrate Requirements:
Substrates must be sound, clean and dry. Remove sand, dust, dirt, oil, grease, wax, silicone, glue and all other contaminates that may affect the bond of the applicable Sika® Duroplast 150.  All substrates must be properly prepared, primed, sealed or filled using the applicable Sikagard® Duroplast product before application of Sika® Duroplast 150.

  
Recommended Primers:
Concrete masonry: Sikagard® Duroplast EE
Gypsum board: Sikagard® Duroplast PS
Common steel: Sikagard® Cor-Pro 470

IMPORTANT: Existing coatings must be removed unless extensive testing confirms compatibility of materials and it is accepted that the existing paint or high performance coating will determine the overall performance of the newly applied coating.

  
Gypsum Board:
To obtain a uniform finish the joint filler compound must be properly installed, finished and fully cured. Small defect, such as pinholes, ridges and fibre-lift, can become very apparent after finishing coats are applied. Some porous joint filler compounds may require an additional application of Sikagard® Duroplast PS to seal and prime the overall surface to a uniform appearance. Gypsum board manufactured with recycled paper facings, may require additional preparation such as careful sanding and an additional coat of Sikagard® Duroplast PS primer/sealer to eliminate high suction spots.

  
Concrete Masonry:
Mortar joints shall be allowed to age for a minimum of 28 days prior to application of Sikagard® Duroplast EE blockfiller. Remove all traces of efflorescence, loose mortar, mortar spatters, residues, oxidation powder and any other foreign matter by scraping and wire brushing. Bug holes, cracks or irregularities should be filled and leveled with SikaTop® or Sika® MonoTop® mortars as appropriate. Consult Sika Canada Technical Services for recommendations.

Concrete Vertical Surfaces:
New concrete shall be allowed to age for a minimum of 28 days prior to application of Sikagard® Duroplast EE blockfiller. Formed concrete surfaces must have all traces of form release agent, bond breaker, curing compounds, laitance, oxidation powder and all other foreign matter removed from the surface. Prepare the concrete to produce an open textured, sandpaper-like finish and uniform surface (ICRI - CSP 1-2). Bug holes, cracks or irregularities should be filled and leveled with SikaTop® or Sika® MonoTop® mortars as appropriate. Consult Sika Canada Technical Services for recommendations.

  
Common Steel:
All steel to be coated must be dry, clean and stable before applying the coating.  Remove all existing treatments such as coatings, sealers, wax, and contaminants i.e. dirt, dust, grease, oils, and foreign matter, which will interfere with the adhesion of Sikagard® Cor-Pro 470. Prepare steel substrates by appropriate mechanical means, such as abrasive blast-cleaning in order to achieve clean white metal profile equivalent to SSPC-SP10, Near White Metal, 2 to 4 mils anchor profile and apply primer immediately, before oxidation of the steel occurs.

Mixing Ratio (A:B) = 4:1 by volume.

Do not hand mix Sikagard® Duroplast® resin materials; mechanically mix only.  Pre-stir each component separately to ensure that all soft settling is dispersed, solids are evenly distributed and even colours and consistencies are achieved within each component.  

Empty Component B in the correct mix ratio to Component A into a suitably sized, clean mixing vessel. Mix the combined components for at least three (3) minutes, using a low-speed drill (200 - 300 rpm) fitted with an Exomixer® or Jiffy type mixing paddle suited to the volume of the mixing container, to minimize entrapped air. Be careful not to introduce any air bubbles while mixing.  Make sure the contents are completely mixed to avoid any weak or partially cured spots in the coating.  During the mixing operation, scrape down the sides and bottom of the container with a flat or straight edge trowel at least once, to ensure complete mixing. When completely mixed, Sika® Duroplast 150 should be uniform in colour and consistency.   Do not mix more material than can be applied within the working time limits (i.e. Pot Life) at the actual field temperature.

Sika® Duroplast 150 can be applied by brush, roller or spray equipment, whichever is the most suitable to the surfaces to be coated or site conditions and limitations. For spray applications, contact spray equipment specialists to determine suitable equipment and for application advise (thinning maybe required) contact Sika Canada.

Sika® Duroplast 150 must be applied in a workman-like manner using skilled and trade qualified applicators. The film thicknesses stated must be produced and complete coverage achieved.  After application and prior to drying, remove masking tape in between each coat to avoid ‘ripping’ in the finished coating and let surfaces dry completely. Following cure of body coats, sand off any rough spots and visible defects with a fine sandpaper (120 -220 grit), then vacuum and wipe surface to remove all residual traces of sanding dust before the application of the final top coat.

Once hardened, product can only be removed mechanically. Clean tools and brushes with Sika® Epoxy Cleaner.