Urethane- High Solids

July 6, 2017

URETHANE COATING/SEALER GLOSS

EPOXY.COM PRODUCT #442


Description

EPOXY.COM PRODUCT #442 is a two component water- based
aliphatic (non-yellowing) polyurethane. Product #442 is free of the
health and environmental problems normally found in solvent-based
urethanes, while maintaining excellent performance properties. Product
#442 is also available in an ESD formulation which must be applied over
a base coat of Epoxy.com Conductive Epoxy.

EPOXY.COM PRODUCT #442 polyurethane provides a gloss finish. Product
#442 has good chemical, stain, and mar resistance. In addition, it’s easy to clean
and has excellent color retention under heavy foot traffic.

EPOXY.COM PRODUCT #442 is a high performance coating
for use in a variety of seamless floor and wall coating systems. Product
#442 eliminates the strong solvent odor normally associated with high
performance materials. It’s ideal for topcoats and finishes that require
high abrasion resistance. Typical application areas are clean rooms,
hospitals, pharmaceutical facilities, stained concrete, wood floors, and
as a seal coat for most Epoxy.com floor and wall
coating systems.

ADVANTAGES

  • Low VOC
  • Low Odor
  • Fast Cure
  • Excellent Adhesion
  • Excellent Abrasion Resistance

CONSIDERATIONS

  • Allow material to rest for 15-20 minutes for viscosity adjustment.
  • Application rate is no less than 250-275 square feet per gallon. Thicker films will
    show bubbling in the cured film.

COMPOSITION

EPOXY.COM PRODUCT #442 is a polyester resin/aliphatic polyisocyanate.

COLOR SELECTION

EPOXY.COM PRODUCT #442 is available in clear and pigmented colors. Gloss finish.
ESD formulation available in clear or pigmented.

APPLICATION

SURFACE PREPARATION

Surface Preparation is the most critical portion of any successful resinous flooring
system application. All substrates must be properly prepared as outlined in Epoxy.com
Surface Preparation Procedures..

MIXING INSTRUCTIONS

  • Mix only that amount of material that can be used in a two hour period. In hot weather,
    plan work for the cooler times of the day.
  • If using less than full units, proportion the amounts carefully and mix for 2-3
    minutes using a low speed drill, scraping the bottom and sides of the mixing vessel.
    DO NOT ADD WATER.

APPLICATION

  • Apply Product #442 polyurethane at a spread rate of 275-300 square feet per gallon
    to achieve 2.0-2.5 mils dry. Thicker application may result in bubbling in the cured
    film.
  • Recoat time is approximately 10 hours at 77°F.
  • Keep a wet edge at all times.
  • Apply Product #442 ESD at a spread rate of 160 square feet per gallon to achieve
    5 mils dry.
  • Use with adequate ventilation.
  • Read material safety data sheet before using.

TECHNICAL DATA

Mixing Ratio  Clear 4 Parts A to 1 Part B by Volume
Solids Content  Clear 43%, by Volume
Volatile Organic Content (VOC) 0.10 pounds/gallon
Pot Life 1 ½  – 2 hrs. @ 77°F, 1 Quart45 minutes @ 95°F, 1 Quart
Viscosity After 15 Minutes @ 77°F 500-600 cps.
Viscosity After 30 Minutes @ 77°F 600 cps.

Wait 15-20 minutes after mixing to start application. Viscosity will decrease with time.

DO NOT ADD WATER.

PERFORMANCE PROPERTIES

Gloss, 60˚ – Clear Gloss Finish
Tabor Abrasion,

1,000 gm. load,

1,000 cycles,

CS-17 Wheel

45 mg. loss
Impact Strength
ASTM-D-2794
Direct 160 in. lbs.

Reverse 160 in. lbs.

DRY TIME @ 77°F, 50% R.H.

Dry to Touch 6 hours
Recoat 10 hours
Light Traffic 16-24 hours
Full Cure 4-5 days

MAINTENANCE

After completing the application of EPOXY.COM PRODUCT #442 Urethane Coating/Sealer, the installer should provide the owner with maintenance instructions.
EPOXY.COM PRODUCT #442 is easily cleaned with neutral soaps or detergents.

More Information

For more information visit http://www.epoxy.com, email me at norm@epoxy.com or contact Epoxy.com Technical Support Department at 352-533-2167


Epoxy Injection of Structures Part 2

February 14, 2017

Infrastructure Repairs Using Epoxy

Epoxy Concrete Injection Epoxy Wood Injection, epoxy crack repair

Epoxy Structural Concrete and Wood Repair / Waterproofing

The following article is written with enough information about resin injection systems to help protect the Owner from the misuse or improper installation of an injection systems.   For more information contact me: Norm Lambert.

This is the second in a series on Infrastructure Repairs Using Epoxy. Part One was Introduction to Epoxy Injection.  If your have not read that yet you may want to go back and read it before you proceed with reading this.

Part 2: Crack Analysis Before Epoxy Injection

As with all repair and rehabilitation of concrete, the initial job analysis is by far the most important step. Epoxy Injection Resin will weld concrete cracks but, of course, will not repair the cause of the cracking.

Analyze each potential injection application to determine the exact cause or causes of the cracking. Correcting the cracking problem can be fairly simple, or may be difficult involving design changes.

Consult a structural engineer when design changes are necessary. Do this before starting the injection. Repairing cracks by Injection is effective after these design changes. Prevent future cracks by fixing the original cause of the cracking, when ever possible.

Parking garages are an example of cracking problem that require a structural engineering analysis.Epoxy.com Epoxy Inection Often inadequate design for expansion/contraction is the cause for parking garage structural cracking. Avoid weld injecting a crack if there are not enough expansion joints. Sometimes flexible overlays such as Epoxy.com System # 495 can be used to overcome this defect. This does not however encapsulate the rebar in a way that will totally stop the premature deterioration of the steel. Often times additional joints are needed, thus the analysis of cracking problems is critical.

Bridge decks and slab on grades can often be repaired with Epoxy.com Product #684LV crack healer and sealer and save some of the cost of doing epoxy injection.

Next in the Injection Series:

Part 3: Setting Epoxy Injection Ports

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.


Concrete Crack Healer & Sealer

February 9, 2017

Repair Cracks in Bridge Decks

And Similar Horizontal Concrete Surfaces

Low Viscosity Fast Setting Methyl Methacrylate (MMA)

Permanent Crack Repair System

MMA CONCRETE CRACK HEALER and SEALER Product #684LV is a 100% reactive ultra-low viscosity methyl methacrylate resin used as a penetrating crack sealer or to fortify extremely porous concrete substrates. MMA CONCRETE CRACK HEALER and SEALER Product #684LV is typically used on bridge decks, parking structures, concrete floors or as a general penetrating sealer to prevent moisture intrusion.

MMA CONCRETE CRACK HEALER AND SEALER Product #684LV is a reactive methacrylate resin, which hardens rapidly with the addition of Product #695 MMA HARDENER, even at low temperatures.

ADVANTAGES

  • Fast Cure (60 min.) for Rapid Recoat and Return to Service
  • Ultra-Low Viscosity for Excellent Absorption Into Concrete
  • Protects Against Water Penetration
  • VOC Compliant (100% Solids)
  • Full Strength in 1 Hour
  • Use Over Wide Temperature Range – Even Below Freezing – Adjust for Temperature in the Field

CONSIDERATIONS

  • Substrate must be dry and free of dirt, waxes, curing agents and other foreign materials.
  • Should not be installed on fresh concrete until maximum shrinkage has occurred (at least 30 days after placement).

COMPOSITION

MMA CONCRETE CRACK HEALER and SEALER Product #684LV is a 100% reactive methyl methacrylate resin. Color is supplied is clear.

USES

  • Bridge Decks
  • Containment Structure Floors
  • Plant Floors
  • Concrete Slab on grade
  • Suspended Concrete Slab
  • Virtually any horizontal concrete surface

For more information about repairing infrastructure visit our website at: http://www.epoxy.com, email us at info@epoxy.com or phone technical support 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


Epoxy Over Epoxy

June 28, 2016

A customer writes: “I installed your Product #1 All Purpose Epoxy Coating on our floor about 20 years ago.  The floor is not warn out or pealing.  It does have scratches where pallets with nails sticking out the bottom has scratched the surface. I want to change the color to our company color anyway, so I want to re-coat the whole floor. How do I proceed from here?”

You will want to sand the existing floor removing all the shine.  It sounds like there was quality installation and surface prep, since you have no lifting or pealing. If you should have any that is loose you need  to completely remove loose coating .  Solvent wipe with Xylene. Lets solvent dry and apply your epoxy normally.

CAUTION:  Epoxy doesn’t like sticking to epoxy unless you do your surface prep meticulously.  I always recommend doing a test patch to test your surface preparation before you proceed with doing the rest of the floor. This can be done by placing a small test patch or patches. Let them harden overnight and then try removing them with a putty knife, screw driver of similar method to insure it is well bonded.

For more information please contact Epoxy.com Technical Support Department by email at: info@epoxy.com or by phone 353-533-2167.


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 Oil Stop Primer

May 13, 2016
Epoxy_oil_stop_primer

Oil Saturated Concrete

 

Oily contaminated concrete is very difficult to bond to, but it can be done with special care and Epoxy.com Product #201 Oil Stop Primer.  Plant floors, warehouse floors, commercial, and residential garage floors can all have this problem.  Here is a typical question that I get about oil contaminated floors:

“We were looking at your product because we have a floor in a maintenance garage that is pretty well soaked with oil.  A new tenant is going into that space so we know that there needs to be something to allow the new floor to stick and to stop the odors.”

Here is my typical response:

Is the oil saturation petroleum oil? If so you need to:

  1. Degrease the floor
  2. Mechanically clean the floor – www.epoxy.com/surfaceprep.aspx.
  3. Apply 1 coat of Epoxy.com Product #201 – www.epoxy.com/201.aspx – at a rate of 200-320 SF per gallon.
  4. Inspect for bond the next day. If bond fails remove the loose #201 and go back to step one.
  5. If bond is good check for oil on top of the primer.  If there is oil on top of the #201 and it is well bonded remove the oil with xylene or other effective degreaser.
  6. Coat with 2 coats of Epoxy.com Product #2 – www.epoxy.com/2.aspx.

I like the Product #2 for these applications because it is very resistant to petroleum oils. Depending on your specific application the material you use over the #201 can be a number of different flooring, coating systems or chemical resistant epoxy floor systems.

For more information, please visit our website at www.Epoxy.com, contact our technical support department at 352-533-2167 or email me at norm@epoxy.com for a specific recommendation.

 


%d bloggers like this: