Sikafloor® Duochem LM
Sikafloor® Duochem LM is a two-component, solid colour, high solids, finely textured and satin finish epoxy paint. It is specifically formulated to paint safety traffic lines in bright colours.
- High solids content, low VOC, low odour.
- General service, broad spectrum chemical resistance.
- Durable wear resistant properties; good mechanical and abrasion resistance.
- Easy to apply and maintain, opaque lines in two coats.
- High build, thixotropic formulation to prevent bleeding under tape lines.
Usage
- Suitable to create safety lines commonly found in industrial facilities, commercial buildings, warehouse premises and other similar interior applications.
- To delineate walkways, drive lanes, work stations, storage areas, caution or hazardous areas.
Advantages
- High solids content, low VOC, low odour.
- General service, broad spectrum chemical resistance.
- Durable wear resistant properties; good mechanical and abrasion resistance.
- Easy to apply and maintain, opaque lines in two coats.
- High build, thixotropic formulation to prevent bleeding under tape lines.
Packaging
3.78 L (1 US gal.) and 18.9 L (5 US gal.) units
Colour
Safety Yellow / Satin finish - finely textured
(special colours available on request)
Product Details
APPROVALS / CERTIFICATES
- Meets CFIA and USDA requirements for use in food plants.
Shelf Life
2 years in original unopened packaging
Storage Conditions
Store dry between 5 °C to 32 °C (41 °F to 89 °F)
Solid content by weight
~96 %
Solid content by volume
~93 %
Volatile organic compound (VOC) content
~61 g/L
Pull-Off Strength
| > 2.4 MPa (> 350 psi) (100% concrete failure) | (ASTM D7234) |
Application
Mixing Ratio
A: B = 4:1 by volume
Product Temperature
Condition products between 18 °C to 24 °C (65 °F to 75 °F)
Ambient Air Temperature
Minimum 10 °C (50 °F) Maximum 30 °C (86 °F)
Relative Air Humidity
Maximum 85% (during application and curing)
Dew Point
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.
Substrate Temperature
Minimum 10 °C (50 °F) Maximum 30 °C (86 °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 workability and slower cure rates.
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.
Substrate Moisture Content
Moisture content of concrete substrate must be < 4% (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). If moisture content of concrete substrate exceeds 4% (pbw – part by weight) as measured with Tramex® CME/CMExpert type concrete moisture meter, use Sikafloor®-1610.
Pot Life
| Material Temperature | Time |
| 23 °C (73 °F) | ~45 minutes |
Curing Time
| Substrate Temperature | Tack-free | Full Cure Chemical Exposure |
| 23 °C (73 °F) | ~6 hours | ~7 days |
Curing times will vary according to ambient 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.
Waiting Time / Overcoating
| Substrate Temperature | Minimum | Maximum |
| 23 °C (73 °F) | ~4 hours | ~18 hours |
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.
Consumption
7.1 m²/L (290 ft²/US gal.) per coat at 5.5 mil w.f.t. (minimum two coats)
Actual coverage rates and material consumption will depend upon porosity and profile of substrates. Allowance must be also made for variation in film thickness or number of coats required to achieve opacity with light (i.e. white) or bright colours (i.e. reds and yellows) on dark substrates. Test sections are recommended to establish correct coverage.
MIXING
Mixing Ratio - A:B = 4:1 by volume
Do not hand mix Sikafloor® materials. Mechanically mix only.
Pre-mix each component separately to ensure product uniformity. Empty component B in the correct mix ratio to component A. Mix the combined components for at least three (3) minutes, using a low-speed drill (300 - 450 rpm) to minimize entrapping air. Use an Exomixer® 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, Sikafloor® Duochem LM should be uniform in colour and consistency.
Mix only that quanitity which can be used within its pot life at actual field temperature.
APPLICATION
Sikafloor® Duochem LM can be applied by brush, roller or spray equipment, whichever is the most suitable to the surfaces to be painted. For spray application, contact spray equipment specialists to determine suitable equipment and for application advice (thinning maybe required) contact Sika Canada.
NOTE: If time between coats exceeds 18 hours at 23 °C (73 °F), abrade surface to remove gloss, vacuum to remove dust and wipe clean with a cloth dampened with Sika® Epoxy Cleaner. The surface should be a uniform dullness, with no gloss present after clean-up and before applying the next coat.
CLEAN UP
Clean all tools and equipment with Sika® Epoxy Cleaner. Once hardened, product can only be removed mechanically.