Epoxy Injection of Structures Part 3

February 24, 2017

This is the third in a series on Infrastructure Repairs Using Epoxy. Part One is  Introduction to Epoxy Injection.  Part 2 is Crack Analysis Before Epoxy Injection

If your have not read that yet you may want to go back and read it before you proceed with reading this.

Port Setting

It is extremely important that if drilling to use the right tool. to set drill type ports use a vacuum swivel drill. That is a drill with vacuum attached swivel drill chuck and hollow a drill bit.

Concrete dust can be detrimental to the injection processes in several ways. Any dust remaining in the drill hole near a crack can combine with the very low viscosity injection resin. This thickens your resin turning it into a weak paste. This paste can slow or even block the resin flow. Drilling very tight crack with a solid drill forces dust into the crack. This seals the crack from resin flow. Do not allow shortcuts in the drilling procedures!  However, for most applications the surface port is the easiest and most effective method.Epoxy Injection Surface Port

Port Spacing

Determining the spacing of ports is done by a highly experience applicator. This spacing is a factor of the tightness of the crack and the depth of the concrete substrate. Spacing is normally between four (4) and eight (8) inches.

Port Setting and Sealing

Align ports directly over cracks. That allows injection resin to flow into the crack. Seal surface cracks. Sealing the exterior of cracks is done with Epoxy Gel type Bonder.

Testing The System

Test cracks that are ill defined, or if dust or debris is in the crack. This testing may be done by injecting water into the crack area.

Water left in the cracks will not effect the injection process or the curing of the Epoxy.com Injection Resin. Heavier injection resin forces the water out the cracks. Water injection helps clean the cracked areas. More important, is that it helps avoid the unexpected. This process of flushing the cracks is commonly skipped by more experience contractors, who can tell if there will be a flow of resin, by just looking at them. However, when in doubt water testing is a must.

If the cracks contain algae, chlorinated water containing copper sulfate is injected. After pumping this mixture is left over night. The next morning the crack is flushed by pumping fresh water, into it. This flushes it out before resin injection begins.

Efflorescence builds up on the bottom of a crack in a horizontal slab. Water in the crack extracting soluble calcium hydroxide is the cause. The water evaporates at the surface leaving the lime, which later reacts with the carbon dioxide in the air to form limestone. The inside of the crack, is frequently free of limestone and making it suitable for injection.

Part 4 of this series: Injection Resin Materials Product Selection.

For more information visit our website at http://www.epoxy.com, email us at info@epoxy.com or call our technical service department at +1 (352) 533-2167.

 


Cold Temperature Epoxy

November 18, 2016

Installing Epoxy in Coolers and Cold Temperature

Extend Epoxy Installation Season into Winter

I have spoken on this subject here before but this time of year I get a lot of calls and emails about installing epoxy in cold temperatures. Our company started out as an installation company in Vermont. Summers are very short and winters are very long in Vermont. To stay a viable company, we had to figure ways of working through the winter.

Tenting and heating areas during the winter is time consuming and expensive. The solution is found in resin products that will set in low temperatures. The most durable and cost effective options of installation at cold temperatures is Epoxy and Methyl Methacrylate.

Cold Temperature Cure Resins can also be used as a super-fast setting Resinous Mortar or Coating at normal temperatures. Our Cold Temperature Cure Resins used at normal temperature give you quick turnaround time for small jobs, or larger jobs that require a short turn-around time.

Cold Temperatures Epoxies

Cold Temperature Cure Epoxy Resins allow installation to be done at low temperatures as low as 35°F., (although it sets a lot faster at 40°F) expanding your epoxy coating and epoxy flooring installation season. Epoxy.com Cold Temperature Cure Epoxy Resins can also be used in cold storage areas like food processing areas, where the temperature cannot be raised higher than 35° F or so. Normal cured epoxy typically requires 50°F or more.

Depending on how you mix the aggregate into the products below, they can be used as a mortar for overlays, or a grout for sealing between other hardened construction materials.

Commonly Used Cold Temperature epoxies

Product #1 Cold Temperature Cure Epoxy Coating is 100% solids and specially formulated coatings for cold temperature applications. Cold Temperature Epoxy Coating #1 is able to cure at temperatures as low as 35°F. It is has Zero (0) VOCs. Since it has no VOCs, it has no solvent so it meets the strictest possible standard for a low VOC coating. It is often used in coolers and food preparation areas that require constant low temperatures. Product #1 Cold Temperature Cure Epoxy Coating is also frequently used in room temperature applications to meet super-fast cure, limited shutdown needs.

Product #10 Cold Temperature Curing Epoxy Mortar Resin – This product has a low modulus of elasticity (flexibility) and is Low Viscosity. The low viscosity allows heavy loading of the right fillers. The heavy filler loading helps not only to save money, but helps to maintain better thermal coefficient with respect to concrete and steel. The low modulus of elasticity prevents it from being brittle making it less vulnerable to thermal coefficient differences. It also gives it better impact resistance.

You can find more information on cold temperature cured epoxy at: http://www.epoxy.com/EpoxyColdCured.aspx.

Please send me your questions to me by email to norm@epoxy.com


Basement Waterproofing with Epoxy Part 2A

September 15, 2014

Poured Concrete Foundation Waterproofing

This is number 2A of a 2 part series on basement repairs. In Part 1, we discussed waterproofing block wall foundations. In Part 2A shows how to identify leaks that need waterproofing in basement walls, and floors that are made out of poured concrete. Part 2B will deal with the actual repairs to poured concrete leaks.

In our last piece we discussed how many homes and businesses experience leaky basements year after year. The worse time is in the spring after winter accumulation of snow. There are a number of prudent things that you can do to improve drainage against your foundation like roof gutters, grading and improvement of drainage. The recommendations here do not replace that conventional wisdom. It is designed to augment and improve upon these conventional methods.

Identifying the Source of the Basement Water Leak

The nice thing about poured concrete is that it holds water back very well. The leak typically happens at a cold joint or in a crack or hole in the concrete.

Concrete Cold Joints

Fresh (plastic) concrete doesn’t bond to hardened concrete. The exception is when a special epoxy bonding agent like Epoxy.com Product #2007 – is used (this bonding agent will be discussed in a future article). When concrete has hardened or has started to harden and you pour more concrete against it (without the right bonding agent) you get what is called a cold joint. These cold joints are a common source of water leaks.

Virtually all basements are built with a giant cold joint – the cold joint between the floor and the wall. Typically there is some sort of water-stops material installed in these joints intended to stop leaking at this cold joint. These water-stops can fail. So the wall to floor joint in a concrete basement is a frequent source of water leaks.

You can also get cold joints in the middle of concrete walls and floors due to multiple pours. You can get cold joints if concrete is setting to fast and fresh concrete is poured against semi cured concrete. Sometimes saw cuts in the floor can be a source of leaks

Form Ties

Then there are the ties that go through the concrete to hold the forms together on either side during the pour. If these form ties are not installed perfectly or if the concrete is not totally vibrated around them, these ties can act as a conduit to let the water in.

 

Wall and Floor Cracks

When concrete cures it shrinks that is called “plastic shrinkage”. That plastic shrinkage can and usually does result in the concrete cracking. These cracks are one of the easiest ways for water to get into your basement. If the water makes it to the fill side of the tank (under the floor or against the wall) it will typically leak out into your basement. You should look carefully for these cracks when looking for potential leaks into your basement. If you are able to investigate into the water infiltration into your basement when it is leaking it will be easy to see. If trying to find the source of leaks when the basement is dry you have to look for water marks on either side of the cracks and beneath the areas that might be leaking.

Repairing the Basement Leaks with Epoxy

In the next installment on this topic, I will deal with how you waterproof the cracks while structurally repairing them with epoxy and similar materials.

For more information please contact me:

Norm Lambert
norm@epoxy.com
352-533-2167
www.epoxy.com

 


Improved Epoxy Gel Adhesives Added to Epoxy.com

May 29, 2014

What are Epoxy Gel Adhesives

Epoxy Gel Adhesives are thickened 100% solid 2-Component Epoxy Resin and Epoxy Hardener systems. Epoxy Gel Adhesives come in various viscosities from whip cream consistency to clay consistency. Some Epoxy Gel Adhesives have a longer working time, and slow set. Some Epoxy Gel Adhesives have a short working time and fast set.

Epoxy Gel Adhesives can have a “high modulus of elasticity” (rigid), or a “low modulus of elasticity” (flexible to semi-flexible). All the Epoxy Gel Adhesives that we sell are very strong. Our Epoxy Gel Adhesives when applied to most common construction structural material that are properly prepared have a bond strength to the substrate greater than the tensile strength of the material you are bonding to. In other words if you go to pull it off from the substrate that you are bonded to, the substrate will fail before the bond of the Epoxy Gel Adhesive will fail.

Uses for Epoxy Gel Adhesives

Epoxy Gel Adhesives are one of the most versatile tools in the construction industry. Epoxy Gel Adhesives are useful for bonding concrete to concrete, wood to concrete, wood to wood, and for that matter most typical construction structural materials to other construction structural materials. Epoxy Gel Adhesives are also useful in patching and repairing inperfections in concrete, wood and steel. Epoxy Gel Adhesives have also successfully been used to repair wood damaged by termites, wet rot, or dry rot. Epoxy Gel Adhesives are used in setting dowel bars, anchor bolts, and ports for epoxy injection.

Newest Epoxy Gel Adhesives Added to Epoxy.com Product line.

Product #2005 Low Modulus Fast Setting Epoxy Gel is a two component 100% solids designed for shallow repair on either vertical or horizontal surfaces. This product is easy to mix and use and has the consistency of Vaseline petroleum jelly. Additionally, the product, because it is a 100% solids product, can be applied thicker on horizontal surfaces when required.

Product #2006 – Epoxy High-Mod Gel Adhesive and Bonding Resin is a 100% solids high-mod epoxy gel adhesive used for vertical and overhead bonding applications and structural repairs. Epoxy High-Mod Gel Adhesive and Bonding Resin – Product #2006 is also used as a grout for anchor bolts, dowels and rebar. Epoxy High-Mod Gel Adhesive and Bonding Resin – Product #2006 Meets ASTM C881 Requirements for Type I, Type II, Grade 3, Class B, C, D, E.

Product #2007 Epoxy Fresh Concrete to Hardened Concrete Adhesive is a two component, 100% solids epoxy resin system designed to bond new concrete to old and other materials to concrete. It has a convenient 2:1 mix ratio, by ASTM C-881-90, Types I, II, IV and V, Grade 2, Class “B” and “C” volume with a viscosity similar to heavyweight oil. Epoxy Fresh Concrete to Hardened Concrete Adhesive #2007 (adhesive) exceeds the requirements of ASTM C-881 Type II, Grade 2, Class “B” “C” “D” and E.

Product #2011 Low Modulus Fast Set Epoxy Gel is a two component 100% solids polymer system designed for applications where a resilient joint material is needed. The two component material (standard) is supplied with a gray component and a clear component. Product #2011 was developed for plural component pump equipment, and is available in cartridge units.

Product #2704 Epoxy Gel Super Fast Cure is a fast setting, 100% solids epoxy crack gel and filler used to line, patch, or repair floor and wall surfaces. Epoxy Gel Super Fast Cure Product #2704 is the ideal material for repair of surfaces damaged from environmental or chemical attack. Epoxy Gel Super Fast Cure Product #2704 can also be used as a base material beneath coating, slurry, and mortar systems to repair before coating.

Product #2707 Splash Zone Epoxy and Underwater Epoxy Paste is a moisture-insensitive, two-component, 100% solids epoxy-resin system. Splash Zone Epoxy and Underwater Epoxy Paste Product #2707 is mixed at a 2:1 ratio, by volume, this product produces a paste-like material that is ideal for protection or restoration of concrete, steel and timber piles and other structural elements in marine environments.

Limitations

Epoxy.com does not recommend using any epoxy gel adhesive to bond anything to a ceiling without reliable mechanical methods of attachment as well.

More Information on Epoxy Gel Adhesives

Contact Epoxy.com Technical Support by phone 352-533-2167 or email info@epoxy.com for more information.

 


Why Use Epoxy.com Products in “Green” Buildings?

August 20, 2012

110614_2044_EpoxyChipFl10.pngEpoxy.com’s 100% solid products (which are most of our product line) are included in many “Green” buildings. The logic for that is this:

1. Epoxy.com 100% solid products have  no VOCs. So you are reducing the carbon emissions.

2. Typical Epoxy.com 100% solid systems have done their job for decades, and there is no reason to believe they will not last for decades more. I personally have jobs that I installed with them that go back as much as a third of a century, that are not even starting to show signs that they will need replacement. That is the ultimate in reuse.

3. There is no need to recycle a product that can be reused for decades, but you can use recycled materials like glass aggregate in the epoxy matrix.

Epoxy.com encourages our customers to order material as they need it and to use all their materials before their expiration. That is why we do not require large stocking orders from new dealers, like most other companies. We want our customers to use up material they buy from us and not have any for it run out of shelf life. However, if Epoxy.com products do run out of shelf life, they are typically mixed and cured before disposal as is consitered in under most if not all local regulations as inert as common trash.

You can find more information about Epoxy.com Zero (0) VOC products at: https://www.epoxy.com/zero_voc.aspx

www.epoxy.com – Epoxy.com Home Page.

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Which is Better, Epoxy Injection or Urethane Injection?

August 15, 2012

Which is better, epoxy injection or urethane injection?  That is a little like asking which is better a 1/2 inch wrench or a 3/4 inch wrench.  The answer is whichever one is the Right Product for the Right Job.  This blog will explain this in more detail.

Epoxy injection should always be used in cracks where two sections were never meant to be separated.  For example a crack that took place in a piece of concrete that was intended to be monolithic (single pour), or where two sections of wood need to be bonded together. These repairs should always be by epoxy injection.

Urethane injection should always be used where the two separate members (pieces of structure) were never intended to be attached firmly but need to be waterproofed.   Consider for example, a sewer pipe and a basement wall (between a pipe and the concrete where it passes through the concrete).

Engineering determinations are required in places like a cold joint or the space between two sections of precast concrete.  If the structure is better off by the two members being bonded together, then epoxy injection should always be used.  If the structure is better off by the two members being able to have slight differential movement from each other and/or should never be bonded together, then urethane injection should always be used.

http://www.epoxy.com/injection.aspx

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Epoxy.com Catalog of Products

November 28, 2010

Epoxy.com Product Catalog

Here is a list of the current Epoxy.com Products.  In addition to the products below, we also have products which we can “custom” make to your specifications. This page is the most  frequently updated on our website.  So please check this page often, to see our latest product additions.

Injection and Binary Delivery Systems

  • Injection Machines
  • Manual Injection Pump
  • Injection Ports
  • Binary Tubes 75 ML
  • Binary Tubes 150 ML
  • Binary Tubes 300 ML
  • Static Mixing Tubes for Binary Tubes
  • Manual Gun for Binary Tubes
  • Pneumatic Gun

Misc. Products

  • Fiberglass Tape 4 and 6 inch wide
  • Fiberglass Woven For Reinforcement
  • Gage Rake for overlays
  • Mixing Paddles – drill mixers, Speedy mixers, Mud and Resin Mixers, and Cast head mixers
  • Spiked Rollers- for overlays
  • Spinney Rollers – for overlays
  • Shed Resistant Roller Covers
  • Professional Rollers Covers
  • Jumbo  2 1/4 Diameter Core Roller Covers
  • Perforated Core Roller Covers
  • Roller Handles
  • Floor Squeegees
  • Serrated Edge Floor Squeegees
  • Wood Back Squeegees
  • Mini Roller Covers and Frames
  • Rubber Gloves
  • Paint Brushes
  • Bondable PTFE Cut to Order
  • Graffiti Cleaner
  • and more …

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Epoxy.com Home Page

Proper mixing and installation is critical to the optimal success of all product.  See Installation Tips, Techdata, & MSDS for more details on our products.  Be sure to contact us with any questions and/or concerns that you have.

For more information please contact:

Epoxy.com
A Division of Epoxy Systems, Inc
20774 W. Pennsylvania Ave.
Dunnellon, Florida 34431
Over 350 products,
Since 1980
Florida & Vermont
USA
Office Hours: 9AM-4PM Eastern Time (6AM-1PM Pacific Time).
Closed 12Noon-1PM Eastern Time for Lunch

321-206-1833   Customer Service – Ordering and Order Status
                          Katey Fontaine, VP – Customer Service Director
sales@epoxy.com

714-657-3826  Technical Support
352-533-2167  Norm Lambert, President – Technical Support Director 
info@epoxy.com

352-489-1666   Accounting and Administration
Debby Lambert, CEO, and CFO
office@epoxy.com

352-489-1625   Fax line to all Departments
www.epoxy.com

24 hour Hazmat Emergency Telephone Response Service -1-800-633-8253

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Copyright © 1994-2010 EPOXY.COM a division of Epoxy Systems, Inc. – Florida and Vermont.  All rights reserved.


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