New Conductive Epoxy Primer

September 15, 2016

Epoxy.com is proud to announce Product #659. This is a  conductive primer that makes our existing conductive epoxy topcoat products even better.  Here is summary of the material:


CONDUCTIVE EPOXY PRIMER

Epoxy.com Product #659


DESCRIPTION

Product #659 Conductive Epoxy Primer is a water-based, two component, carbon filled conductive epoxy primer designed for use with various Epoxy.com Conductive Systems.Product #659  has very low odor making it suitable for use in occupied buildings.

ADVANTAGES

  • For Use with Various Epoxy.com Conductive Systems
  • Maintains Electrical Conductivity Performance over the Wear Life of the System
  • Fast Dry Time
  • Low Odor During Application and Cure
  • VOC Compliant in all 50 US States, Meets USGBC LEED Requirements

CONSIDERATIONS

  • Substrate must be above 50°F and relative humidity below 85% for proper curing.
  • Substrate must be properly prepared following Epoxy.com recommendations and free of dirt, waxes, curing agents and other foreign materials
  • Excessive moisture in the substrate will require a moisture vapor control treatment like Product #830
  • Concrete substrate must be insulated with a non-conductive
    epoxy primer/base coat like Product #12 Chemical Resistant Epoxy Primer or Product #899 Epoxy Primer  prior to application of Product #659 Conductive Epoxy Primer. Consult with Epoxy.com Technical Department for recommendations.
  • Must be top coated with a conductive top coating like Product #1ESD, or Product #630 Conductive.

APPLICATION

SURFACE PREPARATION

Surface Preparation is the most critical portion of any successful resinous flooring system application. All substrates must be properly prepared and tested for moisture as outlined in installation procedures or as recommended by Epoxy.com.

BATCHING, MIXING & INSTALLATION

 

Product #659 Conductive Epoxy Primer:
PART A 1 quart to
PART B 3 quarts to
Clean Water 8 volume ounces (6% by volume of water)
Total 4.125 quarts

Coverage (250 square feet/gal.) 265.6 square feet per batch

Pre-mix Product #659 Conductive Epoxy Primer  part B prior to combining with part A. Mix 1 part A with 3 parts B for 2-3 minutes with a low-speed jiffy mixer, scraping sides and bottom of mix vessel. Continue mixing and add 6% by volume clean potable water and continue mixing for 1 additional minute.

Immediately spread and back roll mixed Product #659 Conductive Epoxy Primer at a rate of 250 ft2 per gallon with a short nap roller over previously applied non-conductive epoxy primer/base coat.Care should be taken to avoid puddles. Allow to cure minimum 12 hours (at 75°F) to maximum 24 hours before coating with specified topcoat.

Important: Test Product #659 Conductive Epoxy Primer with ohm meter prior to top coating to confirm acceptable level of conductivity is achieved. If test readings are higher than 25,000 ohms, contact Epoxy.com Technical Support Department for further instructions before installing specified topcoat.

Top Coat with a conductive top coating like Product #1ESD, or Product #630 Conductive.

CLEAN-UP

Clean skin with soap and water. Tools and equipment should be cleaned with warm soapy water, xylene or lacquer thinner. Consult Material Safety Data for safety and health precautions.

COMPOSITION

Waterborne Epoxy Resin and Conductive Filler. Color: Black.

COVERAGE

Product #659 Conductive Epoxy Primer applied at 250 ft2 per gallon yields 2.7 mils dry film thickness.

TECHNICAL DATA (@ 75°F, 50% RH)

Viscosity 500-1000 CPS
Mixing Ratio 1 Part A to 3 Parts B by Volume
Solids Content, by volume 45%, thinned
Volatile Organic Content (VOC) <10 g/L
Bond Strength to Concrete 300-400+ psi (100% concrete failure)
Shelf Life 6 months when properly stored

CURE/DRY TIME (@ 75°F, 50% RH)

Pot Life 20-30 minutes
Dry to Touch 6-8 hours
Recoat (Refer to testing requirements) 12-24 hours
 Light Traffic 24 hours

For more information, visit us on line at Epoxy.com, email me at norm@epoxy.com or call Epoxy.com Technical Support at 352-533-2167.

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Patching Vinyl Ester Floors With Novolac

July 28, 2016

A customer writes:

“We have a dairy processing and packaging facility that was built circa 1994.  At the time of construction we chose to install a flooring system which was vinyl ester based with fiberglass mat.  The floor has held up quite well in areas where it had a good bond.  The failures we have seen are in areas that covered either an expansion joint or control joint in the concrete.  In these areas the flooring has delaminated from the concrete.  Where possible we have made a clean cut through the flooring to an area where we had a good bond and left the concrete exposed.  Other failure areas are around floor drains.  We have made repairs with quick curing epoxies in the past but these don’t seem to bond well to the existing vinyl ester flooring. 

“Having a manufacturing facility with only one down day limits our ability to make substantive repairs.  During a search for low or no VOC  flooring systems I you folks.”

I have personally made many thousands of square feet of floor repairs that sounds exactly like the issues and conditions that you are describing.

Here is what I did to permanently resolve the issue, at least in the patched areas.

  1. Cut back the edges of the delaminated areas back to a point where the vinyl ester is well attached.
  2. Prep the concrete under the failed area and the edges of the old material – epoxy.com/surfaceprep.aspx.
  3. Prime with Epoxy.com Product #12 – epoxy.com/12.aspx
  4. Install a trowel coat of Epoxy.com Product #630 – epoxy.com/633.aspx and
    1. Epoxy Mortar Blend aggregate #82 Mortar Blend Aggregate
    2. Allow to cure hard to the touch and cool.
  5. Glaze with a neat coat of Epoxy.com Product #633 with optional Anti-skid – http://epoxy.com/non-skid-additive-polycarbonate-aggregate.aspx

Please email your additional questions to norm@epoxy.com or visit http://www.epoxy.com .


Are Epoxy.com 100% Solids Epoxy Low VOC

June 23, 2016

A user writes: “I have seen a number of your products that are on a list or marked with a tag that says Zero (0) VOCs.  When I look at the data sheet it says that the Epoxy.com product is 100% Solids, but does not say it is Zero (0) VOCs.”

Norm Lambert > Thank you for pointing that out.  You bring up an excellent question.  Epoxy.com Products that are 100% solids (100% active ingredients) do not contain solvent, that means they have no VOCs making them compliant with the toughest Low VOC Standards. I will start updating pages on the Epoxy.com to reflect that in the future.  Until then please rest assured that all Epoxy.com Products that are 100% solids have no VOCs in them.


Epoxy Table Top Resin (Part 2) Installation

February 5, 2016
Pictures of an epoxy table top made from Product #214

Product #214 Epoxy Table Top Resin

This the second part of a 2 part article. In the first writing we dealt with some of the uses of Epoxy.com Product #214  Epoxy Table Top Resin. This article will deal with the installation of the material.

Quick Review

In my last writing I discussed that Product #214 Water Clear Epoxy Casting – Tabletop Resin – Bar Top Resin is an all-purpose, low viscosity epoxy resin system for coating wood and concrete counter tops, tabletops, bar tops and similar applications. It has excellent clarity and color retention. Our clear casting resin and tabletop resin / bar top Epoxy has zero (0) VOC making it essentially odorless and can therefore be used in occupied areas. It de-bubbles and flattens a lot easier than similar materials.

Considerations

The Product #214 epoxy resin is low viscosity. It is typically applied thicker than 1/16 inch thick. Because the Product #214 Table Top epoxy has such a low viscosity (thin) it needs some kind of boarder around the outside edge to create a dam for your main pour. The picture above shows you one way to make that trim decorative. It is easiest and most effective when the piece that will act as the dam will remain in place after the installation. If your application is less than 1/16 inch thick contact our Technical Support Department at 352-533-2167.

Before You Start

Be sure that you have the proper job supplies.

  • Paint stir sticks
  • 3 (5 G) plastic pails
  • Roll of Duct Tape
  • 4 Window Squeegees in various widths
  • Paper 6oz Dixie cups
  • 2 (2 blade) mixing paddles – should be at least 5 inches in diameter and capable of being used in a heavy duty drill
  • Heavy Duty Drill for mixing paddles above
  • 6 (2 inch) paint brushes *check bristles to be certain they CAN NOT be pulled out*
  • Latex (or non latex) rubber gloves
  • Vacuum (Shop Vacuum Quality)
  • Roller Pans (for trim)
  • Roller Pan Liners (for trim)
  • Roller Frame (for trim)
  • Roller Covers (shed resistant – for trim)
  • Roll of plastic to keep buckets on to avoid drips onto floor
  • *Note – Epoxy does NOT come out of fabrics*
  • Go Jo Hand cleaner or fast orange for hands and skin
  • Xylene, MEK, or Acetone for cleaning up hard tools and hard surfaces
  • Electric Hair Dryer or Heat Gun
  • Spray bottle
  • Isopropyl (rubbing) alcohol as high a content as possible (90% or higher)

Preparation

Be sure that your tabletop is level. The epoxy table top resin is going to go water flat. If your table is not flat when you pour it, then the surface of the epoxy will be level to gravity and not with your table.

Put plastic under the table that you are about to coat. This plastic is to catch the resin that drips off the table during installation. I like putting some cardboard on top of the plastic to absorb the resin that drips off so it doesn’t get tracked around the room.

Vacuum the surface to receive the tabletop epoxy to remove any dust, or dirt. Mask all surfaces that need protecting.

Be sure that the trim that you have around the table to hold your resin is tight fitting and securely fastened. Mix a small batch of Epoxy Table Top Resin or Epoxy.com Product #15. Coat the trim piece on the outside of the table and use the resin to seal the joint between the table and the trim piece.

The first coat should be installed thin. The first coat is acting as a primer. Additional coats can be applied thicker but be sure not to apply it so thick that you get puddles or runs. Be sure to wipe any resin that gets on the bottom of the table off. This will save a lot of sanding later. Apply as many coats as you feel you need to get the look that you want on the trim pieces. Be sure each coat of epoxy is applied within 24 hours of the previous coat.

Pouring the Epoxy Table Top

Mix your epoxy in batches small enough so you can pour them quickly and all at once. If you leave a large mass of epoxy in the bucket it produces heat quickly. That dramatically reduces the published potlife. Follow all good mixing practices when mixing the material, at a minimum proper measuring of A and B, mix for 3 minutes, being sure to scrape the sides and bottom as you go.

Individual pours should not be less than about 1/16 or more than 3/8 to ½ deep. If the pours are too thin you may experience fisheyes. If the pour is too thick it might produce too much heat. Two much heat can hurt the aesthetics of your table.

If you need the epoxy to be more than 3/8 to ½ inch deep it should be done in multiple pours. Simply wait for the previous pour to harden and cool and then make your next pour. Be sure to make the next pour not longer than 24 hours in between the coats. If you wait much longer than that you may experience inter-coat adhesion issues

 

Many table top resin manufacturers recommend the use of torches to make their materials lay flat. You do not need to do that with Product #214 table top and casting resin. Our material is thinner than those other materials and will lay flat when applied at the right thicknesses all by themselves.

Make your final pour so that it is full up to the top of your trim pieces and carry it over the edge. That way it appears like all the resin on the top and edges of your trim were from a single pour.

Much of the time Product #214 Table Top Resin tends to de-bubble on its own without a lot of effort to remove the bubbles. The bubbles that you do have can typically be easily removed with a high concentration Isopropyl (rubbing) alcohol and/or your hair dryer or heat gun.

Any bubbles you see should be broken as soon as possible. That means that you will need to watch your tabletop as it sets up and break the bubbles as soon as you see them. You should continue to watch until the resin gets stiff enough that no more bubbles can be formed.

The electric heat gun or hair dryer can be used to blow at the areas to make the bubbles break. The heat helps to thin the resin and the force of the air helps to break them.

The isopropyl alcohol can be misted over the surface. Never spay it directly the isopropyl alcohol directly at the surface but rather mist above the surface at about a 90 degree angle allowing the droplets to hit the surface. Never spay enough to wet the surface. The droplets of isopropyl alcohol help to mechanically break the bubbles while the isopropyl acts as a solvent that evaporates almost immediately after the bubble breaking action.

Summary

Epoxy.com Product #214 Table Top Epoxy Resin is a versatile product that is easy to use. It is designed to be poured where a thicker casting of epoxy resin is required. This epoxy table top resin pours to a water flat shinny surface. It easily releases its bubbles with a little assistance, and cures water clear.

Please keep your questions coming to me.

Norm Lambert
352-533-2167 (Voice)
norm@epoxy.com

http://www.epoxy.com

Additional Resources


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