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Description

  • Overview
  • Specs
  • Cure
  • Chemical
  • Application
  • Background

E324C ESD Static Dissipating Urethane

E324C is a two component ESD Anti-Static aliphatic polyurethane floor top coat that exhibits excellent characteristics for abrasion, chemical resistance, flexibility, weathering, uv stability and static dissipative properties. The electroconductive powders used will not slough off or abrade and retain their conductive properties regardless of temperature, and unlike ionics, the performance is independent of humidity so it is ideal for any environment. The E324C will help reduce static buildup not attainable from an unmodified urethane.

Typical conductive properties for the E324C system (when applied in conjunction with E144C primer) follows: (E324C = 105 to 109 ohms per ASTM F150-89 at 500 volts over concrete).  Designed to be used together as a protective system with the E144C ESD Primer in order to achieve proper electrical properties.  The E324C and E144C products are made to order and come with electrical testing results for that particular order.  Does not meet ANSI 20.20-2007 specifications.

Recommended for : Computer rooms, laboratories, aircraft hangers, exterior tanks, indoor or outdoor service and chemical exposure areas with regard to concrete, cement, brick, masonry or metal.

Available in 3 gallon kit and 15 gallon kit.  Comes in 6 colors.

For an epoxy basecoat/urethane topcoat anti-static ESD system for heavy duty and forklift traffic that meets ANSI 20.20 standards, see the HB-97.2 Epoxy.

PRIMER: Requires E144C to achieve electrical specifications
TOPCOAT: None Recommended

 Where is the E324C used?

  • Computer rooms
  • Aircraft Hangers
  • Laboratories
  • Exterior Tanks
  • Indoor or Outdoor projects
  • Chemical Exposure Areaas

Why E324C Static Dissipative Urethane?

  • Great Urethane ESD Anti-Static Dissipative Protection
  • 105 to 109 ohms per ASTM F150-89 at 500 volts over concrete (E144C/E324C)
  • Topcoat for use with E144C primer as part of a tough durable, long wearing system
  • Outstanding Impact Resistance 150 in lb
  • Excellent adhesion 380 psi
  • Excellent chemical resistance
  • Choice of 6 Colors

SPECIFICATIONS

Solids By Weight 70%, by Volume 64%
VOC <359 g/L (mixed)
Colors Dark Gray, Medium Gray, Light Gray, Tile Red, Black, Charcoal
Electrical Resistance ASTM F150-89 Measurement Location (ohms) #1 1.32e6, #2 1.25e6, #3 2.17e6, #4 2.12e6
Recommended Film Thickness 3-5 mils per coat wet thickness (yields 2-3 mils dry)
Coverage per Gallon 320 to 500 sq’/gallon @ 3-5 mils wet thickness
Packaging  3 gallon kit or 15 gallon kit
Mix Ratio 2:1 mix ratio, 1 gallon Part A to 2 gallons Part B
Shelf Life 1 year in unopened container
Impact Resistance (Gardner Variable Impactor) 150 inch pounds direct – passed
Abrasion Resistance Taber abraser CS-17 calibrase wheel with 1000 gram total load and 500 cycles= 23 mg loss
Flexibility No cracks on 1/8″ mandrel
Adhesion  380 psi @ elcometer (concrete failure, no delamination)
Viscosity Mixed 800 – 1100 cps (typical)
Finish Characteristics Gloss (>60 at 60 degrees @ glossmeter)

CURE SCHEDULE @70°F

Pot Life – (1-1/2 gallon typical) 2-4 hours
Tack free (dry to touch) @70°F 5-6 hours
Recoat or topcoat not recommended
Light foot traffic 7-12 hours
Full cure (heavy traffic) 3-5 days

APPLICATION TEMPERATURE: 45-90 degrees °F

CHEMICAL RESISTANCE

RATING
 Xylene D
 MEK A
Gasoline D
Acetic Acid 10% B
Ethylene Glycol D
 10% sodium hydroxide E
 50% sodium hydroxide D
 10% sulfuric D
 30% sulfuric acid C
10% HCI D
20% Nitric acid C

Rating key: A – not recommended, B – 2 hour term splash spill, C – 8 hour term splash spill, D – 72 hour immersion, E – long term immersion.

MIXING AND APPLICATION INSTRUCTIONS

THIS PRODUCT IS NOT FOR A CONDUCTIVE COATING SYSTEM. THIS SYSTEM IS NOT INTENDED FOR AREAS EXPOSED TO EXPLOSIVE MEDIA SUCH AS AMMUNITION PLANTS. THIS MATERIAL IS PROVIDED AS A STATIC DISSIPATIVE COATING. REVIEW THE DATA ON THE FRONT SIDE OF THIS TECHNICAL DATA UNDER ELECTRICAL RESISTANCE FOR TESTING RESULTS. REVIEW YOUR ELECTRICAL RESISTANTCE REQUIREMENTS BEFORE INSTALLING THIS PRODUCT. DO NOT USE WAXES UNLESS THEY ARE SPECIFICALLY FORMULATED AND RECOMMENDED FOR ANTI STATIC APPLICATIONS. ALWAYS APPLY TEST PATCHES OF YOUR SELECTION TO CHECK CONDUCTIVITY PRIOR TO APPLICATION AND TO BECOME FAMILIAR WITH THE PRODUCTS APPLICATION PROCEDURE. 1) PRODUCT STORAGE:  Store product in an area so as to bring the material to normal room temperature before using.

SURFACE PREPARATION: Surface preparation will vary according to the type of complete system to be applied. For a complete system build higher than 10 mils dry, we recommend a fine brush blast (shot blast). All dirt, oil, dust, foreign contaminants and laitance must be removed to assure a trouble free bond to the substrate. A test should be made to determine that the concrete is dry; this can be done by placing a 4’x4′ plastic sheet on the substrate and taping down the edges. If after 24 hours, the substrate is still dry below the plastic sheet, then the substrate is dry enough to start coating.

PRODUCT MIXING:  Mix one part A to one part B by volume. After the two parts are combined, mix well with slow speed mixing equipment such as a jiffy mixer until the material is thoroughly mixed and streak free. Improper mixing may result in product failure. For best mixing results and proper blending of parts A and B, recommend a Jiffy Mixer style drill mixer.

PRODUCT APPLICATION: This product is intended for the professional applicator with knowledge of this type of product. The mixed material can be applied by brush or roller. Maintain temperatures within the recommended ranges during the application and curing process. The E144C conductive primer is best earthed with strips of copper about 8″ long, which are anchored in the subfloor and connected to a water pipe or neutral conductor in the electric wiring system. Two earthing points normally suffice for a single room. One earth per 200 square meters of floor space is the general rule for large areas. After the substrate is earthed, Apply the E144C by roller or brush at the recommended (5-7 Mil) thickness. Too thick of an application may result in insufficient conductivity or solvent entrapment and subsequent product failure. Allow sufficient time for the E144C to cure. SEE FRONT SIDE UNDER LIMITATIONS FOR TESTING PROCEDURES.

RECOAT OR TOPCOATING:  This product was designed to be topcoated with our E324C Anti-Static urethane and E183C Anti-Static Epoxy. When you topcoat this primer, you must first be sure that all of the solvents have evaporated from the coating during the curing process. Always remember that colder temperatures will require more cure time for the primer before recoating or topcoating can commence. Before topcoating, check the coating to insure no epoxy blushes were developed (a whitish, greasy film or deglossing). If a blush is present, it must be removed prior to topcoating. To topcoat with the E324C thoroughly mix part A and part B together for the E324C anti-static topcoat using slow speed mixing equipment. Apply the E324C anti-static topcoat by roller or brush. Be sure to apply the topcoat product at the specified coverage rate or recommended thickness. Too thick of an application may result in product failure. We only recommend one coat of any anti-static topcoat be applied over the conductive primer. Consult your sales agent for proper anti-static topcoat selections. Adequate leakage resistance should be less than 107 ohms measured at 500 volts over concrete per ASTM F150-89. Typical conductive properties for the E324C system (when applied in conjunction with E144C primer) follows: (E324C = 105 to 109 ohms per ASTM F150-89 at 500 volts over concrete).

CLEANUP: Use xylol.

FLOOR CLEANING: : Caution! Some cleaners may affect the color of the floor installed. Test each cleaner in a small area, utilizing your cleaning technique. If no ill effects are noted, you can continue to clean with the product and process tested.

RESTRICTIONS: Restrict the use of the floor to light traffic and non-harsh chemicals until the coating is fully cured (see technical data under full cure). It is best to let the floor remain dry for the full cure cycle. Dependent on actual complete system application, surface may be slippery, especially when wet or contaminated; keep surface clean and dry.

LIMITATIONS:

  • Not for sale in low EPA regulated markets including SCAQMD and OTC areas.
  • *Colors or gloss may be affected by high humidity, low temperatures, chemical exposure, or exposure to lighting such as sodium vapor lights.
  • For best results use a high quality 3/8” nap roller.
  • Slab on grade requires moisture barrier
  • Substrate temperature must be 5°F above dew point
  • All new concrete must be cured for at least 30 days
  • Physical properties are typical values and not specifications
  • Do not topcoat the primer until the resistance is 106 ohms or lower. In some instances, it will require 24 hours before applying the E324C. (it is best to test the primer before topcoating.
  • Tire contact may cause staining and discoloration
  • Colors may vary from batch to batch
  • Physical properties listed on this technical data sheet are typical values and not specifications.
  • See below for limitations of our liability and warranty.

NOTICE TO BUYER: DISCLAIMER OF WARRANTIES AND LIMITATIONS ON OUR LIABILITY WARNING: Antistatic flooring cannot provide protection against discharges from the power main. If danger of coming in contact with the mains cannot be completely ruled out, the usual safety regulations must be followed to the letter. Although this publication describes how our products may be applied to achieve antistatic flooring and the information given is based on the present state of our knowledge, all recommendations are made without liability on our part since the actual application of our products is not in our hands and special conditions prevailing at a particular job sight might negatively influence a floors antistatic properties. Buyers and users of our products should make their own assessment of the floors antistatic properties immediately after it has been installed and at regular intervals thereafter. We warrant that our product is manufactured to the strict quality assurance specifications and that the information supplied by us is accurate to the best of our knowledge. All other information supplied by us is accurate to the best of our knowledge. Such information supplied about our products is not a representation or a warranty. It is supplied on the condition that you shall make your own tests to determine the suitability of our product for your particular purpose. Any use or application other than recommenced herein is the sole responsibility of the user. NO WARRANTY IS MADE, EXPRESSED OR IMPLIED, REGARDING SUCH OTHER INFORMATION, THE DATA ON WHICH IT IS BASED, OR THE RESULTS YOU WILL OBTAIN FROM ITS USE. N0 WARRANTY IS MADE, EXPRESSED OR IMPLIED, THAT OUR PRODUCT SHALL BE MERCHANTABLE OR THAT OUR PRODUCT SHALL BE FIT FOR ANY PARTICULAR PURPOSE. NO WARRANTY IS MADE THAT THE USE OF SUCH INFORMATION OR OUR PRODUCT WILL NOT INFRINGE UPON ANY PATENT. We shall have no liability for incidental or consequential damages, direct or indirect. Our liability is limited to the net selling price of our product or the replacement of our product, at our option. Acceptance of delivery of our product means that you have accepted the terms of this warranty whether or not purchase orders or other documents state terms that vary from this warranty. No representative is authorized to make any representation or warranty or assume any other liability on our behalf with any sale of our products. Our products contain chemicals that may be CAUSE SERIOUS PHYSICAL INJURY. BEFORE USING any material, READ THE MATERIAL SAFETY DATA SHEET AND FOLLOW ALL PRECAUTIONS TO PREVENT BODILY HARM.  

ANTI-STATIC FLOORING OVERVIEW:

ELECTROSTATIC CHARGES: Electrostatic charges can be induced from friction between two different kinds of material (between two non conductors or simply by common surface contact). Such charging takes place readily when most flooring material is walked on or driven over and these discharges can often be accompanied by sparks. As everyone is aware, in some industries, sparks can have devastating consequences. This hazard can be managed if our anti-static flooring system is the choice of the specifying engineer. These products meet many requirements of electrical conductivity as well as a high resistance to chemical attack and are designed for applications in such places as laboratories, chemical plants, painting manufacturers and anywhere where solvents are used. Additionally, some industries such as the electronics trade, require anti-static coatings for protecting electrical components from failure.

LEAKOFF OF ELECTROSTATIC CHARGES: The electrical discharge capacity of synthetic resin flooring is determined by measuring the ohmic resistance. As a rule, floors with a leakage resistance of 10+6 ohms are considered to be electrically conductive. However, each country has its own standards for how they rate this discharge capacity. For instance DIN 51953 applies in Germany, UL 779 applies in the United States and the British standard is 3398. However, many engineers have requirements far below those that are certifiable by organizations such as the Underwriters Laboratories, epending on the protection needed for their prospective environments. Although it is widely recognized in the industry that less than 109 ohms of resistance is considered to be anti-static, the majority of our systems surpass those requirements. However, each individual location should review their specific requirements before any installation to evaluate that the suitability of any anti-static coating selection meets their needs prior to any installation.

SOME THINGS YOU SHOULD KNOW: *Concrete is conductive because of the moisture content present in the concrete. However, the moisture content can be highly variable. That is why a primer such as our E144C or another suitable primer must be used to achieve proper anti-static characteristics below 1.0e+9 ohms. The primer increases the conductivity by decreasing the ohmic resistance. Although the E324C and E183C have anti-static characteristics, the full potential is not achieved without an appropriate primer. Finally, it should be pointed out that grounding the anti-static conductive system does improve the performance the system by decreasing the ohmic resistance and charge buildup. The conductive primer is the product that should be grounded and not the topcoat or any underlayment placed prior to the primer. This is easily accomplished by grounding the coating with strips of copper or grounding straps connected to a water pipe or neutral conductor in the electric wiring system. Two earthing points normally suffice for a single room. One ground point per 2000 sq’ of floor space is the general rule for large areas when all individual slabs are connected with conductive copper strips or tape.

How to Ground an ESD Floor Coating

How to Ground an ESD Floor Coating

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