Product Data Sheet
Show all documents

Sikafloor®-265

FLEXIBLE EPOXY MEMBRANE

Sikafloor®-265 is a two component, high solids and elastomeric epoxy for use as a flexible membrane. Sikafloor®-265 is a true elastomer for use as a seamless, waterproofing membrane for floor and wall applications. This unique polymer system maximizes flexibility and elongation to provide excellent crack bridging capabilities. Applied as a clear or field pigmented with Sikafloor Epoxy Pigment Pack. When properly applied, is certified to ANSI 118.10 for waterproofing membrane at applied thickness of 40 mils.

  • Economical
  • Easy to apply
  • High solids
  • Flexible, bridges hairline cracks 
  • Meets USDA requirements
  • Wide range of colors with Sikafloor Epoxy Pigment Packs
 
Product Data Sheet
Show all documents

Usage

It is ideal for mechanical equipment rooms, floors and walls in interior spaces where humidity and temperature are micro-controlled, access floor systems for computer rooms and offices where liquid lines prevail as well as areas requiring an elastomeric water protection surface. Sikafloor®-265 may be used as a waterproofing membrane. Sikafloor®-265 is an integral component of the Sika Merflex waterproofing system.  

Advantages

  • Economical
  • Easy to apply
  • High solids
  • Flexible, bridges hairline cracks 
  • Meets USDA requirements
  • Wide range of colors with Sikafloor Epoxy Pigment Packs
 

Packaging

Component A

5.0 US gal. (18.9 L) fill in 5 gal. pail

Component B

5.0 US gal. (18.9 L) fill in 5 gal. pail

Component A+B

10.0 US gal. kit (37.8 L)

Color

Clear or field pigmented with Sikafloor Epoxy Pigment Pack; Sikafloor Epoxy Pigment Pack is available in 1 quart (1.0 L) size. 2 quarts of color additive may be required per 10 gallons (37.8 L) mix.

Product Details

Product Information

Shelf Life

2 years in original unopened packaging

Storage Conditions

Store dry between 40 °F - 90 °F (4 °C - 32 °C)
Technical Information

Shore D Hardness

40 

ASTM D2240

at 73 °F (23 °C) and 50% R.H

Impact Strength

160 in - lbs. (1.8 kg-m.)

direct and reverse

ASTM D2794

at 73 °F (23 °C) and 50% R.H

Tensile Strength

1,050 psi (7.2 MPa)

ASTM D638

at 73 °F (23 °C) and 50% R.H

Tensile Adhesion Strength

520 psi (3.6 MPa)

100% concrete failure

ASTM D7234

at 73 °F (23 °C) and 50% R.H

Tear Strength

90 lbs 

ASTM D1938

at 73 °F (23 °C) and 50% R.H

Chemical Resistance

Please consult Sikafloor Technical Services

Thermal Resistance

Self Extinguishing

ASTM D635

at 73 °F (23 °C) and 50% R.H

Elongation at break

125%

ASTM D638

at 73 °F (23 °C) and 50% R.H

 

Application

Application Information

Mixing Ratio

1 : 1 by volume

Ambient Air Temperature

Minimum/Maximum 50°/85 °F (10°/30 °C)

Substrate Temperature

Minimum/Maximum 50°/85 °F (10°/30 °C)

Pot Life

Material Temperature

Time

+50 °F (10 °C)

45 minutes

+68 °F (20 °C)

30 minutes

+86 °F (30 °C)15 minutes

Cure Time

Substrate Temperature

Foot Traffic

Light Traffic

Full 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

1 day

4 days

Waiting / Recoat Times

Substrate Temperature

Minimum

Maximum

+50 °F (20 °C)

24 hours

48 hours

+68 °F (20 °C)

12 hours

36 hours

+86 °F (30 °C)

8 hours

24 hours
Consumption

Coverage

Primer

160 - 200 ft2 / US gal (3.9 - 4.9 m2 / L) at 8 - 10 mils (0.2 - 0.25 mm) wet film thickness (w.f.t.)

Smooth Finish Coating

80 ft2 / US gal (1.9 m2 / L) at 20 mils (0.5 mm) wet film thickness (w.f.t.)

Minimum 2 coats are required for waterproofing [40 mils (1 mm) total]

Broadcast Layer

54 - 80 ft2 / US gal (1.3 - 1.9 m2 / L) at 20 - 30 mils (0.5 - 0.75 mm) wet film thickness (w.f.t.)
Application steps

MIXING

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 Pigment Pack is added to Component A at a rate of 1 quart per 5 mixed gallons (i.e. Components A+B) for all colors.

 

Mix Component A and Sikafloor Epoxy Pigment Pack 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) in 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.

 

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

APPLICATION

As Primer

Apply primer by squeegee at the rate of 160 - 200 ft2 / US gal (3.4 – 4.9 m2 / L) at 8 – 10 mils (0.20 – 0.25 mm) wet film thickness (w.f.t.) and back roll. Coverage will vary depending on the porosity of the prepared substrate. 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. Ensure that the coating is pore-free and pinhole-free and provides uniform and complete coverage over the entire concrete substrate.

 

If necessary, apply an additional coat to ensure the coating is pore-free and pinhole-free and provides uniform and complete coverage over the entire concrete substrate.

 

As Sealer/Membrane

Sikafloor®-265 is applied with a notched squeegee over a smooth surface. Back rolling is typically done with an 18 inch (455 mm) wide 3/8 inch (10 mm) short nap, solvent-resistant roller cover. Back roll the Sikafloor®-265 only to level the squeegee applied material; over-rolling and late back rolling may cause bubbling and leave roller marks. Spike rolling may be necessary. 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.

 

As Broadcast Layer

Sikafloor®-265 is poured in the form of a ribbon on the surface to be coated and spread evenly with a notched squeegee over a smooth surface. The back rolling its typically done with an 18 inch (454 mm) wide short nap, 3/8-inch (10mm), solvent-resistant roller cover. After the materials has leveled out (approx. 10 - 15 min after placing the material), start broadcasting quartz sand to full rejection. As Wall Coating: Apply in accordance with Sikagard Wall Systems technical system sheet.

Documents