Sikafloor® Terrazzo

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

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

1 year when stored in original, unopened containers.

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

< 50 g/L

Coefficient of Thermal Expansion

Consult Sika Canada

Epoxy Terrazzo Matrix (Only):   A:B = 3:1 (by volume)

Condition product between 18 °C to 26 °C (65 °F to 80°F) before using.

Minimum 10 °C (50 °F) Maximum 30 °C (85 °F)

Mixing and application attempted at material, ambient and/or substrate temperature conditions less than 18 °C (65 °F) will result in a decrease in product workabitity and slower cure rates.

Maximum 85 % (during application and curing)

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 floor finish. Be aware that the substrate temperature may be lower than the ambient temperature.

Minimum 10 °C (50 °F)   Maximum 30 °C (85 °F)

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

Moisture content of concrete substrate must be ≤ 4 % by mass (pbw – part by weight) as measured with a Tramex®CME / CMExpert type concrete moisture meter on mechanically prepared surface according to this product data sheet (preparation to ICRI / CSP 3 - 4). Do not apply to concrete substrate with moisture levels exceeding 4 % mass (pbw – part by weight) as measured with Tramex® CME / CMExpert type concrete moisture meter. If moisture content of concrete substrate exceeds 4 % by mass (pbw – part by weight) as measured with Tramex® CME / CMExpert type concrete moisture meter, use Sikafloor®-1610 or Sikafloor®-81 EpoCem®CA or Sikafloor® 22NA or 24NA PurCem®.

When relative humidity tests for concrete substrate are conducted per ASTM F2170 for project specific requirements, values must be ≤ 85 %. If values exceed 85 % according to ASTM F2170, use Sikafloor®-1610 or Sikafloor®-81 EpoCem®CA or Sikafloor® 22NA or 24NA PurCem®. ASTM F2170 testing is not a substitute for measuring substrate moisture content with a Tramex® CME / CMExpert type concrete moisture meter as described above.

~50 minutes at 23 °C ( 73 °F)  (matrix only, unfilled)    250 g (8.8 oz.)

~18 hours to ~24 hours at 23 °C (73 °F) (prior to inital grinding)

~7 days at 23 °C (73 °F) (full cure)

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

Protect from dampness, condensation and water contact during the initial 72 hour cure period.

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

~0.3 m²/L (~12 ft²/US gal.) at 6 mm (1/4 in), when filled as recommended

~0.2 m²/L (~8 ft²/US gal.) at 9 mm (3/8 in) thick, when filled as recommended

NOTE: Due to the wide variety of aggregate chips used to create an unlimited design pallet, it is impractical to produce a single specific mix design that will meet the needs of all parties involved. The Sikafloor® Terrazzo mix design provided on this data sheet is a starting point that requires further refinement. It is the responsibility of the terrazzo applicator to conduct additional project specific mix design mock-ups, to finalize adjustments to the mix to achieve an acceptable final appearance, establish production rates, predict pinhole frequency and finalize aggregate and epoxy consumption.

Mixing Ratio - A:B = 3:1 by volume  (epoxy matrix only)

Do not hand mix Sikafloor® materials. Mechanically mix only.  

On no account should this product be thinned. Addition of thinners (eg solvent or water) will retard the cure, reduce the ultimate properties of this product and void any applicable Sika warranty.

Pre-stir thoroughly each component to ensure that any soft settled material is mixed back into suspension and all solids and pigments are evenly distributed. Uniform colour and consistency must be achieved within each component.

Where supply format permits, empty Component B into Component A. Alternatively and in the correct ratio of 3:1 by volume Component A: Component B, empty material into a suitably sized and clean mixing vessel and thoroughly mix using a low-speed drill (300 - 450 rpm) and Exomixer®-type mixing-paddle (recommended model). To minimize entrapping air, ensure mixing paddle is kept immersed in the material during mixing.

To the 20.15 L (5.3 US gal.) mixed unit, slowly add marble dust filler and selected aggregate chips. During the mixing operation, scrape down the sides and bottom of the pail with a flat or straight-edge trowel at least once to ensure thorough mixing. When completely mixed Sikafloor® Terrazzo should be uniform in colour, aggregate chips should be thoroughly wetted out and the consistency should be homogeneous before use.

Mix only that quanitity which can be used within its pot life at actual field temperature.

MIX DESIGN

 Sikafloor® Terrazzo epoxy matrix can be combined with a wide range of fine and coarse mineral aggregate chips (marble or granite), coloured or recycled glass, mirror particles, plastic and non-corrosive metal fragments. The inherent characteristics of the selected aggregate chips; weight / density, resin absorption, size, shape, colour and amount of uncontrolled dust in these aggregates can all significantly affect the application properties, coverage rate achieved and final appearance.

The applicator’s preferred installation technique (slurry and broadcast or traditional screed and trowel) methodology will determine an individual contractor’s preference for thixotropy. The addition rate of marble dust is variable as it absorbs resin, thickening the matrix, allowing the applicator to make adjustments to meet their specific application technique or site environmental conditions. Due to the wide variety of aggregate chips used to create an unlimited design pallet, it is impractical to produce a single specific mix design that will meet the needs of all parties involved.

   
IMPORTANT: The Sikafloor® Terrazzo mix design provided below is a starting point that requires further refinement. It is the responsibility of the terrazzo applicator to conduct additional project specific mix design mock-ups, to finalize adjustments to the mix to achieve an acceptable final appearance, establish production rates, predict pinhole frequency and finalize aggregate and epoxy consumption.

Sikafloor® Terrazzo Mix Design:

• Sikafloor Terrazzo Matrix (A+B)  20.15 L (5.3 US gal.)
• Marble Dust 2.5 kgs to 12 kgs (5.5 lb to 26.4 lbs)
• Marble Chips Blended (#0 & #1)  60kg to 72 kgs (132 lb to 159 lb)

Alternative aggregate chips types, i.e. glass, plastic and non-corrosive metal can be incorporated into the mix design, consult Sika Canada for advice.

As Sikafloor® Terrazzo is formulated to be resin rich, priming of substrates is not usually necessary under typical circumstances. However, due to variations in concrete quality, surface conditions, surface preparation and ambient conditions, reference test areas are recommended to determine whether priming is required.

Pour Sikafloor® Terrazzo onto the floor, immediately spread and compact the mortar to the desired thickness using a 75 mm (3 in) wide steel trowel. Take care to spread newly mixed materials across the transition of previous applied mixes before the surface begins to set.

Allow the applied terrazzo to cure for 18 hours at 23 °C (73 °F) before initiating the grinding operation.

Once sufficiently set and grinding operations are complete, Sikafloor® Terrazzo can be sealed with Sikafloor® Duochem-305 for aesthetic improvement or Sikafloor® Duochem-942 or Sikafloor®-315 N two-part polyurethane coatings for improved chemical resistance (refer to separate Product Data Sheet).

Clean all tools and equipment with Sika® Epoxy Cleaner. One cured, product can only be removed mechanically.