Product Data Sheet
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Sikafloor®-225 N

Premium UV Resistant Epoxy

Sikafloor®-225 N is a low odor, 100 % solids epoxy resin coating primarily designed for high build coating and decorative quartz/flake applications. It may be applied clear or may be field pigmented using Sikafloor® Epoxy -N Color Additives.

  • UV Resistance properties exceed what other standard epoxy systems offer.
  • 100 % solids as supplied.
  • Attractive, high gloss, reflective coating.
  • Durable, impermeable and seamless
  • Good abrasion resistance.
  • Excellent impact resistance.
  • Good overall resistance to a wide spectrum of chemicals.
Product Data Sheet
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Usage

Sikafloor®-225 N is ideal as a broadcast clear, low odor top coat over decorative quartz or vinyl flake floor broadcast systems, as well as slurry applications. Sikafloor®-225 N clear and/or pigmented can also also be top coated with an aliphatic urethane when increased chemical and abrasion resistance are required.  

Advantages

  • UV Resistance properties exceed what other standard epoxy systems offer.
  • 100 % solids as supplied.
  • Attractive, high gloss, reflective coating.
  • Durable, impermeable and seamless
  • Good abrasion resistance.
  • Excellent impact resistance.
  • Good overall resistance to a wide spectrum of chemicals.

Packaging

Component A:5 US gal. (18.9 L) fill in 5 gal. pail*
Component B:5 US gal. (18.9 L) fill in 5 gal. pail
Components A+B:15 US gal. (56.7 L)
*(2 units needed)

Color

Clear or Pigmented with Sikafloor Epoxy -N Color Additive.

Sikafloor Epoxy -N Color Additive is available in 1 quart (1.0 L) size.

Depending on the color chosen, 1 or 2 of quarts of color additive may be required per 3 gal. (11.3 L) mix.

Product Details

Product Information

Shelf Life

24 months in unopened container

Storage Conditions

Store dry between 40 °F and 90 °F (4–32 °C)

Volatile organic compound (VOC) content

26 g/L (A+B Combined)

(ASTM D-2369)
Technical Information

Shore D Hardness

79–83  (28 days)

ASTM D2240

at 73 °F (23 °C) and 50 % R.H.

Abrasion Resistance

93 mg

(CS-17/1000rot/1000g)

Compressive Strength

2,500 psi

ASTM D695

at 73 °F (23 °C) and 50 % R.H.

Flexural Strength

9,151 psi

ASTM D-790

at 73 °F (23 °C) and 50 % R.H.

Tensile Strength

4,888 psi

ASTM D638

at 73 °F (23 °C) and 50 % R.H

Tensile Adhesion Strength

> 400 psi (2.8 MPa) 100 % concrete failure

ASTM D4541

at 73 °F (23 °C) and 50 % R.H

Impact Strength

160 in - lbs. (1.8 kg-m)

ASTM D-2794

at 73 °F (23 °C) and 50 % R.H

Indentation

2.38 %

(MIL-PRF-24613)

Chemical Resistance

Please consult Sikafloor Technical Services

Thermal Resistance

Pass

ASTM C884

at 73 °F (23 °C) and 50 % R.H

Water Absorption

0.18 % (2 hours boiling)

ASTM C-413

at 73 °F (23 °C) and 50 % R.H

Permeability to Water Vapor

0.32 g/hour/sq-meter

ASTM E96

at 73 °F (23 °C) and 50 % R.H

Gloss Level

90 @60 degrees      

ASTM D523

at 73 °F (23 °C) and 50 % R.H

Coefficient of Friction

Dynamic  0.57 Wet
                0.65 Dry

ANSI  B137.1

at 73 °F (23 °C) and 50 % R.H

 

Application

Application Information

Pot Life

Material TemperatureTime
50 °F (10 °C)~ 30 minutes
68 °F (20 °C)~ 20 minutes
86 °F (30 °C)~ 10 minutes

Cure Time

Ambient &

Substrate Temperature

Foot trafficLight trafficFull cure
50 °F (10 °C)~ 24 hours~ 3 days~ 10 days
68 °F (20 °C)~ 12 hours~ 2 days~ 7 days
86 °F (30 °C)~ 8 hours~ 36 hours~ 4 days

Waiting / Recoat Times

Before applying second coat Sikafloor® 225N allow:

Ambient &

Substrate Temperature

MinimumMaximum
50 °F (10 °C)24 hours3 days
68 °F (20 °C)8 hours2 days
86 °F (30 °C)6 hours1 day

Before applying Sikafloor® Epoxy or Polyurethane on Sikafloor® 225N allow:

Ambient &

Substrate Temperature

MinimumMaximum
50 °F (10 °C)24 hours3 days
68 °F (20 °C)8 hours2 days
86 °F (30 °C)6 hours1 day
Consumption

Coverage

Smooth Finish/Wear/Sealer Coating:
80–100 ft2 / US gal (1.9–2.5 m2 / L) at 15–20 mils (0.38–0.50 mm) wet film thickness (w.f.t.)
Application steps

MIXING

Mixing Ratio - 2 : 1 by volume.
For bulk packaging, when not mixing full units, each component must be pre-mixed separately to ensure product uniformity.

  

Clear Resin
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.

                                 

Field Pigmented
Premix each component separately. If color is desired, the appropriate Sikafloor® Epoxy -N Color Additive is added to Component A at a rate of 1 quart per 3 mixed gallon. (i.e. Components A+B) for all colors except bright colors like White, Safety Yellow or Tile Red which require 2 quarts per 3 mixed gallon. (i.e. Components A+B). Mix Component A and Sikafloor Epoxy- N Color Additive for 2 minutes or until a uniform color is achieved with a low speed drill (300–450 rpm) and Exomixer or Jiffy type paddle suited to the volume. Empty Component B (Hardener) at the correct mix ratio to Component A (Resin) and mix for additional 2 minutes. 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.

    

 

                                                       

 Self Leveling Slurry                   
Premix each component separately. Empty Component B (Hardener) in the correct mix ratio into Component A (Resin) and add the appropriate Sikafloor® Epoxy Color Additive. Mix the combined components for at least 1 minute 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. Add Sikadur® 504 type filler and mix for additional 2 minutes. 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.

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

                     
Pour a bead of product on to the surface to be coated, then spread with a notched squeegee or pin rake to the desired thickness. Roll immediately (within max. 10 minutes of application) in two directions with a spiked roller to ensure even thickness and the removal of entrapped air. To obtain a higher aesthetic finish, spike roll in two directions at a 90 degree angle by passing only once in each direction. The product has a limited Pot Life, see Typical Data.

APPLICATION

Sealer/Intermediate
Sikafloor®-225 N is applied with a 10–20 mils (0.25–0.50 mm) notched squeegee over a smooth surface and a flat squeegee over a rough or decorative quartz surface. Back rolling is typically done with an 18 in. (455 mm) wide 3/8 in. (10 mm) short nap, solvent-resistant roller cover.

Back roll the Sikafloor®-225 N only to level the squeegee applied material. Over-rolling and late back rolling may cause bubbling and leave roller marks. Product has a limited Pot Life, see Typical Data. Do not apply by dipping roller into mixing container. Pour a bead of product in the form of a ribbon on the surface to be coated, then spread with squeegee and back roll.

 

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