Product Data Sheet
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Sikafloor®-270 ESD

Sikafloor®-270 ESD

CHEMICAL RESISTANT NOVOLAC HIGH BUILD ELECTROSTATIC CONTROL EPOXY COATING

Sikafloor®-270 ESD is a two-component ESD epoxy coating system designed to impart electrostatic control properties to a variety of substrates in conjunction with ESD footwear, including existing nonconductive substrates. Sikafloor 270 ESD complies with ANSI S20.20 - 2014 for product qualification and demonstrates conductive properties to meet other applicable ESD standards.

  • Conforms to ANSI S20.20-2014 when tested in accordance with ANSI STM 97.1
  • Conductive range 2.5 X 104 to 1.0 X 106 ohms per ANSI/ESD S7.1/ASTM F-150.
  •  Body voltage generation under 30V with ESD compliant footwear.
  • Maintains electrical conductivity throughout the entire thickness of the system.
  • Does not depend on relative humidity for conductive properties.
  • Tough, smooth, non-porous surface is easy to clean and maintain.
  • Good abrasion resistance.
       
Product Data Sheet
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Usage

Sikafloor®-270 ESD can be used in almost any environment where the damaging effects of electrostatic discharge (ESD) cannot be tolerated and the enhanced corrosion resistance properties of a novalac epoxy resin system are desired. Industries currently using these coatings are:
  • Electronics Manufacturing
  • Data Processing Facilities
  • Military/Aerospace
  • Printing Plants
  • Photographic/Graphic
  • Hazardous Industries (Dust or explosion hazards)
  •  Pharmaceutic/Clean Rooms
 

Advantages

  • Conforms to ANSI S20.20-2014 when tested in accordance with ANSI STM 97.1
  • Conductive range 2.5 X 104 to 1.0 X 106 ohms per ANSI/ESD S7.1/ASTM F-150.
  •  Body voltage generation under 30V with ESD compliant footwear.
  • Maintains electrical conductivity throughout the entire thickness of the system.
  • Does not depend on relative humidity for conductive properties.
  • Tough, smooth, non-porous surface is easy to clean and maintain.
  • Good abrasion resistance.
       

Packaging

Component A

3.0 US gal. (11.36 L) fill in a 5 gal.pail

Component B

1.50 US gal. (5.7 L) fill in a 2 gal. pail

Components A+B

4.50 US gal. (17.03 L)

(Ready to mix unit) Mix all units of all components according to the instructions herein.

Color

Sparrow GraySmoky Brown
Richmond GrayCyan Blue
Steel GrayTea Green
Blackstone BlackBrickyard Red
Brickyard Red

Other colors require lead time, or may not be possible due to pigment limitations
 

Product Details

Product Information

Shelf Life

12 months in original unopened container under proper storage

Storage Conditions

 Store dry between 40° - 90°F (4°- 32°C) Material must be preconditioned above 68ºF/20ºC for 72 hours prior to use.

Volatile organic compound (VOC) content

22 g/L

Technical Information

Shore D Hardness

84

ASTM D2240

at 73°F (23°C) and 50% R.H

Abrasion Resistance

CS-17/1000 cycles/1000g ~113 mg loss

ASTM D4060

at 73°F (23°C) and 50 % R.H

Compressive Strength

11,458 Psi (79 MPa)

ASTM D790

at 73°F (23°C) and 50% R.H

Flexural Strength

10,587 Psi (73 MPa)

ASTM D790

at 73°F (23°C) and 50% R.H

Tensile Strength

6,193 Psi (42.7 MPa)

ASTM D638

at 73°F (23°C) and 50% R.H

Tensile Adhesion Strength

>400 Psi (2.75 MPa)

ASTM D4541

at 73°F (23°C) and 50 % R.H

Impact Strength

26 ft.lbs

ASTM D2794

at 73°F (23°C) and 50% R.H

Indentation

1.16 %

MIL-PRF-24613

at 73°F (23°C) and 50% R.H

Water Absorption

0.19% (24 hr)

ASTM D570

at 73°F (23°C) and 50% R.H

Electrostatic Behavior

2.5 X104 to 1.0 X106 ohms

ANSI/ESD S7.1/ASTM F-150

at 73°F (23°C) and 50 % R.H

Full electrical properties reached within 10 days of application

(With heel straps integral 1 megohm resistor)

 

Application

Application Information

Mixing Ratio

2:1 by volume (Mix full unit only)

Pot Life

Material Temperature

Time

+68°F (20°C)

~ 20 minutes*

Sikafloor 270 ESD must be applied and distributed immediately after mixing.
*Do not apply after indicated Pot Life is exceeded. End of Pot Life is not visible.

Cure Time

Ambient &

Substrate

Temperature

Foot traffic

Light traffic

Full cure

+ 73°F (23°C)

~12-16 hours

~12-16 hours

~5-7 days

Electrical Properties: Full electrical properties reached within 10 days of

application at 73°F (23°C).

Consumption

Coverage

4.50 mixed gallons (approximate coverage) at: 16 mils = 450 ft2 (42 m2)
Sikafloor 270 ESD should be applied at 15 - 18 mils.
Product will lose ESD properties if applied at excessive thickness. Do not exceed the recommended thickness.

Application steps

MIXING

Mix full units only
Premix each component separately. Stir Component A container with a long margin tool to ensure contents are evenly distributed scraping the sides, corners and bottom of the pail. A jiffy-type mixing paddle with a variable speed mixing drill. Then add the Component B to the pigmented Component A and mix for 3 minutes at a moderate speed (300rpm), scraping the container sides, bottom, and corners 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. Sikafloor 270 ESD must be placed and distributed on the application surface immediately after mixing.

APPLICATION

The Sikafloor 270 ESD should be applied with a notched squeegee over a smooth primed substrate. The notched squeegee should be 18 to 24 inches (45.6 to 60.1 cm) long with 1/16 to 1/8 inch (1.6 - 3.2 mm) notches at 1/4 inch (6.4 mm) intervals. This type of squeegee will apply sufficient material to achieve 15 - 18 wet mils when back rolled. Back rolling is typically done with a 9 inch (22.8 cm) or 18 in (45.6 cm) wide, 3/8 inch (9.5 mm) short nap , solvent resistant roller cover. Back roll the Sikafloor 270 ESD to level the material applied. Over-rolling and late back rolling may cause bubbling and leave roller marks. Divide the floor into sections that can be completed without stopping. When ending a section, tape it off to form a clean edge for an adjacent section.

Sikafloor 222W ESD conductive primer is used in conjuction with Sikafloor 270C ESD: test the primed surface for conductivity prior to the application of Sikafloor 270C ESD. A value of < 5.0X 103 ohms per ANSI/ESD S7.1/ASTM F-150 must be achieved. Do not use with Sikafloor 220W conductive primer. Use only Sikafloor 222W conductive primer.

 


The recommended application procedures are:
1.Take one 5 gallon (18.9 liter) pail of the mixed Sikafloor 270 ESD and start at one end of the section to be coated. Trim the walls and/or obstructions in the immediate area where the coating will be applied. Pour the Sikafloor 270 ESD in a line approximately 1 ft (0.3 m) from the wall or starting line along the entire width of the section to be coated.
2. The person using the squeegee can then make one pass along the wall or starting line, turn and come back making a second pass adjacent to the first pass. Next, use the rollers to level the Sikafloor 270 ESD squeegee applied material. One person can roll apply a 15 to 20 ft (4.6 - 6.1 m) wide section. Do this as quickly as possible.
3. Pour another line of Sikafloor 270 ESD approximately 1 ft (0.3 m) from the rolled area and repeat step 2. The rolling personnel should make sure they are not leaving puddles or thick sections of Sikafloor 270 ESD at the junction of the previously rolled and freshly applied Sikafloor 270 ESD
4.Follow these procedures until the section is completed. If the work must stop for any reason, use a tapeline as a breaking point.

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