Sikagard® Duroplast EE

Potential of contribution towards LEED®v4 credits. Contact Sika Canada.

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

1 year in original unopened container.

Store dry at temperatures between 5 °C to 32 °C (41 °F to 89 °F). Protect from freezing. If frozen, discard.  Precondition material for at least 24 hours between 18 °C to 30 °C (65 °F to 86 °F) before use.

~68 %

~50 %

~65 g/L

A:B =1:1 by volume

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

Ambient Air Relative Humidity: Maximum 85 % (during application & cure).

NOTE: Application attempted at low ambient air or substrate temperatures and/or under high humidity conditions, will result in a decrease in product workability and slower cure rates. 

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).

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).

Drying times will vary according to air and substrate temperature and relative humidity.

Protect from dampness, condensation and water contact during the initial 24 hour cure period.

1.2 m²/L to 2.0 m²/L (50 ft²/US gal to 80 ft²/US gal.) per coat (33 mil w.f.t. to 20 mil w.f.t. / 16 mil d.f.t. to 10 mil d.f.t.)

Typically one (1) coat is required, though on higher absorbency substrates a second coat may be required. Actual coverage rates and material consumption will depend upon porosity and profile of substrates. Test areas are recommended to establish correct coverage rates.

Mixing Ratio A:B =1:1 by volume

Do not hand mix Sikagard® Duroplast® resin materials: mechanical mix only.

Pre-stir each component separately to ensure that all soft settling is dispersed, solids are evenly distributed throughout and components are consistent within themselves.

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) to minimize entrapping air. Use an Exomixer® or Jiffy type mixing paddle (recommended model) suited to the volume of the mixing container. 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, Sikagard® Duroplast EE should be uniform in colour and consistency.

Allow the mixed material to stand (induction time) for one (1) hour, then lightly remix to ensure uniformity before applying. Failure to do so will result in unsatisfactory performance.

Do not mix more material than can be applied within the working time limits (i.e. Pot Life) at the actual field temperature. 

Sikagard® Duroplast EE can be applied by brush, roller or spray equipment, dependent on limitatiions and site conditions. If sprayed, the material must be back rolled/brushed to ensure good penetration of the blockfiller into the substrate.             

Sikagard® Duroplast EE must be applied in a workmanlike manner using skilled and trade qualified applicators. The film thicknesses stated must be produced and complete coverage achieved (This condition may require a second coat).            

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 blockfiller 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 body coats.

Clean tools and brushes with warm water and where required, detergent.  Once hardened, product can only be removed mechanically.