Sikafloor®-218 DF
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Sikafloor®-218 DF is a low odor, 100 % solids, UV resistant, epoxy resin coating system specifically designed for high build intermediate base coats utilizing Sikafloor DecoDur Granite aggregate. Top coated with Sikafloor 304W, a low VOC water-based polyurethane, that produces an attractive matte finish that complements the DecoDur Granite system. Alternative finish coats are available
- Specially formulated aggregate for superior aesthetics
- 100 % solids as supplied
- Attractive matte or gloss finish
- Tough, smooth, easy to clean, non-porous surface
- Durable and seamless surface
- Good UV and abrasion resistance
- Excellent impact resistance
- Available in eight standard colors
Usage
Sikafloor®-218 DF is used as a clear, low odor binder for intermediate base coat when mixed with Sikafloor DecoDur Granite aggregate. Sikafloor®-218 DF can be considered where ≤ 4 % moisture content by mass (pbw – part by weight) is measured on concrete substrate with Tramex® CME/ CMExpert type concrete moisture meter. Typical applications may include:- Auto dealerships
- Institutions
- Offices
- Grocery, department, and retail stores
- Pharmaceutical laboratories, production rooms, and offices.
- Museum and galleries.
- Laboratories
- Public areas
Advantages
- Specially formulated aggregate for superior aesthetics
- 100 % solids as supplied
- Attractive matte or gloss finish
- Tough, smooth, easy to clean, non-porous surface
- Durable and seamless surface
- Good UV and abrasion resistance
- Excellent impact resistance
- Available in eight standard colors
Packaging
| Component A Sikafloor®-218 DF: 3.0 US gal. (11.3 L) | Component B Sikafloor 217: 1.5 US gal. (5.68 L) |
| Total A+B 4.5 US gallons (17.0 L) | Component C: 35 lb (15.9 kg) bag |
2 bags required for each full 4.5 gallon A+B mixed unit
Color
Clear, mixed with Sikafloor DecoDur aggregates. Eight standard colors
Product Details
Shelf Life
24 months in original unopened container under proper storage conditions
Storage Conditions
Store dry between 40 and 90 °F (4–32 °C)
Solid Content
~ 100 % (by volume) / ~ 100 % (by weight)
Volatile organic compound (VOC) content
| 34 g/L (A+Sikafloor 217 Part B Combined) |
Shore D Hardness
| 80 | (ASTM D-2240) |
Abrasion Resistance
| 76 mg | (ASTM D-4060) |
Compressive Strength
| 7,250 psi (50 N/mm²) (28 days) | (ASTM C-579) Resin (filled with DecoDur Granite aggregate) |
Flexural Strength
| 9,384 psi | (ASTM D-790) |
Tensile Strength
| 5,728 psi | (ASTM D-638) |
Tensile Adhesion Strength
| 5,728 psi | (ASTM D-638) |
Indentation
| 1.30 % | (MIL-PRF-24613) |
Chemical Resistance
Please consult Sikafloor Technical Services.
Water Absorption
| 0.13 % | (2 hours boiling) (ASTM C-413) |
Permeability to Water Vapor
| 0.41 g/hour/sq-meter | (ASTM E-96) |
Gloss level
| 5–15 (60°) (Sikafloor® 304 W Finish) | (ASTM D-523) |
Coefficient of Friction
| > 0.6 (Sikafloor® 304 W Finish) | (ASTM D-2047) |
Application
Mixing Ratio
| 1.5 gallons (5.7L) of Sikafloor®-218 DF component A |
| 0.75 gallon (2.84 L) Sikafloor 217 component B |
| [1] 35 lb (15.9kg) bag of Sikafloor DecoDur Granite aggregate. |
Pot Life
| Material Temperature | Time |
| 50 °F (10 °C) | ~ 50 minutes |
| 68 °F (20 °C) | ~ 25 minutes |
| 86 °F (30 °C) | ~ 15 minutes |
Cure Time
| Ambient & Substrate Temperature | Foot traffic | Light traffic | Full cure |
| 50 °F (10 °C) | ~ 24 hours | ~ 3 days | ~ 10 days |
| 68 °F (20 °C) | ~ 8 hours | ~ 2 days | ~ 7 days |
| 86 °F (30 °C) | ~ 6 hours | ~ 36 hours | ~ 4 days |
Waiting / Recoat Times
Before applying Sikafloor finish coat on Sikafloor®-218 DF allow:
| Ambient & Substrate Temperature | Minimum | Maximum |
| 50 °F (10 °C) | 24 hours | 72 hours |
| 68 °F (20 °C) | 8 hours | 48 hours |
| 86 °F (30 °C) | 6 hours | 24 hours |
Coverage
With DecoDur Granite aggregate, 75–94 ft2 / Mixed unit (1A+1B+2C) (7.0–8.7 m2) at 80–100 mils (2.0–2.54 mm) wet film thickness (w.f.t.).
One mixed unit consists of 1.5 gallons Sikafloor®-218 DF component A & 0.75 gallon Sikafloor® 217 component B hardener and one [1] 35 lb (15.9kg) bag of Sikafloor® DecoDur Granite aggregate
MIXING
A pigmented primer/color coat is required to ensure complete color coverage of the filled base coat. Use Sikafloor 264 pre-pigmented in the matching color shown in the chart below. Refer to Sikafloor 264 product data sheet for mixing instructions. Alternately, use Sikafloor®-218 DF Epoxy Color Additive-N See mixing instructions following section. To 4.5 gal. mixed unit, add one quart of Sikafloor Epoxy Color Additive-N. Apply either at 10–12 mils wet film thickness.
Filled Base coat
Mixing Ratio - 2 : 1 by volume.
One mixed unit consists of 1.5 gallons (5.7L) Sikafloor®-218 DF component A & 0.75 gallon (2.84 L) Sikafloor 217 component B hardener and one [1] 35 lb (15.9kg) bag of Sikafloor DecoDur Granite aggregate. For bulk packaging, when not mixing full units, each component must be pre-mixed separately to ensure product uniformity. Premix each component separately. Empty Component B (Hardener) in the correct mix ratio into Component A (Resin). Mix the combined components for at least 3 minutes using a low speed drill (300–450 rpm) and Exomixer or Jiffy type 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. Add one bag of Sikafloor Decodur aggregate, mix thoroughly for three minutes. Do not mix more material than can be applied within the working time limits (i.e. Pot Life) at the actual field temperature.
APPLICATION
Pigmented Primer/Color Coat:
Recommended base coat colors, Sikafloor 264 or Sikafloor 281 DF + Sikafloor ECA-N:
| DecoDur Color | Sikafloor Epoxy Color |
| Black | Basalt Gray |
| Contrast | Oxford Gray |
| Beach Sand | Raffia Beige |
| Light Blue | Traffic Blue |
| Hierro | Pale Green |
| Ruby Red | Oxide Red |
| Apple Green | Beige |
| Classic | Light Gray |
As Intermediate: Sikafloor®-218 DF with DecoDur Granite aggregate is applied with 1/4 in. (6.3 mm) notched squeegee over a smooth primed and pigmented base coated surface. Back rolling is typically done with a 9 or 18 in. wide spike roller. Back-roll the Sikafloor 218 DF Decodur Granite only enough to level the squeegee applied material. It is important to back-roll the material within a 10–30 minute window (depending on temperature). Over-rolling and late back rolling may cause bubbling and leave roller marks, or other surface defects. Sikafloor®-218 DF is not intended as a stand-alone coating. Use as stand-alone coating will result in unsatisfactory appearance and performance.
Finish Coat: Sikafloor®-218 DF is designed to be used with a finish coating. The standard finish coat is Sikafloor 304W matte finish. Increased abrasion resistance is achieved by applying Sikafloor 315N with wear aggregate. Refer to appropriate Sikafloor product data sheet for complete mixing and application instructions and performance data.