epoxy concrete floor patch

Patching Floor with Epoxy

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Here is an outline of the procedure for patching with Epoxy.com Product #1 and Product #10.  Cold cure is identical but you should make even smaller batches and work even faster.

  1. Mix a small amount of the #10 (mix ratio 2A: 1B).
    1. Measure accurately and mix for 3 minutes with a proper size mixer.
    2. Typically very small batches less than a quart can be mixed with a stir stick.
    3. Larger batches should use a mixing paddle in a low speed drill or similar. Typically  mixing paddles are 5 inches or more in diameter.
  2. Apply a primer coat of #10 at a rate of 250-300 SF per gallon (typically done with a roller) to the substrate the mortar is to be attached to.
    1. Typically you will allow this to harden to the touch to make troweling into it easy.
    2. You can trowel into the wet primer in the case of small patches.
  3. Mortar Patch
    1. Mix another small batch of #10, using the methods in step 1 above.
    2. Add Product #82 Mortar Blend Aggregate to the mixed resin in 3a. You can add as much as 50 to 75 lbs. of mortar blend aggregate to a gallon of mixed #10 resin. If the material appears to wet you can add more, if it is too dry add less.
    3. Quickly trowel the patch into place.  Winter Cure Epoxy can set very fast in the bucket.
  4. Sealer Coat
    1. After the patch in step 3 has hardened, you can grind off any high spots and fill more material again if needed.
    2. Then seal the top of the patch.
  1. Product #10 is thinner than the #1, making it an excellent sealer for sealing up the patch.
  2. Alternately you can go directly to a very thin coat of #1
  1. Top Coat
    1. Mix small batches of #1 using the methods used in #1 above.
    2. Mix optional Antiskid fine into the coating above at a rate of 8-16 volume ounces of Anti-skid per gallon of mixed resin.  12 ounces per gallon is typical.  This is done by mixing the resin first, adding the anti-skid and mixing for another min.
    3. Quickly apply the material with a roller at a rate of 160-200 SF per gallon per coat.  Two coats is recommended.
  2. Please read all the information below before starting your project.
  1. Do with Epoxies
  2. Don’ts with Epoxies
  3. Surface Preparation
  4. www.epoxy.com/10.aspx
  5. http://epoxy.com/1cold.htm
  6. SDS Product #10 Part A – Hardener Lo-Mod Epoxy Adhesive and Mortar Epoxy Resin
  7. SDS Product #10 Part Cold Cure B – Lo-Mod Epoxy Adhesive and Mortar Epoxy Hardener
  8. SDS Product #1A – All Purpose Coating Hardener Component MSDS.
  9. SDS Product #1B -cc – Cold Cure Epoxy Hardener for Product #1

 

BE SURE TO CALL ME WITH ANY QUESTIONS OR CONCERNS!

 

Cold Temperature Epoxy

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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

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Epoxy Sealing a Floor Drain

Epoxy Sealing a Floor Drain

How to Seal Around an Existing Floor Drain with Epoxy.com Systems

Updated May 2025 with improved product recommendations and application tips.

The Problem

“I have a second-floor production area that has a long stainless steel trench drain around the center of the room. We hose the area down with hot water, but a crack is developing next to the drain that allows water to leak into the room below. The floor under my quarry tile is concrete.”

The Solution

Here’s how to permanently seal around a stainless steel drain using Epoxy.com Products #660, #10, #82, and #2 for industrial-grade waterproofing and chemical resistance.

Step-by-Step Instructions

1. Remove Surrounding Tile

Carefully remove the quarry tile around the perimeter of the floor drain.

2. Clean Back to Bare Concrete

Remove all grout and thinset to expose clean, sound concrete.
Surface prep guide

3. Undercut or V-Groove the Concrete Edge

  • Cut or chip a V-groove around the drain
  • Increase bonding surface for epoxy
  • Avoid cutting through the slab

4. Abrade the Drain Edge

  • Roughen stainless steel to remove shine
  • A dull surface improves bonding

5. Clean Thoroughly

  • Vacuum loose debris
  • If using air, ensure it’s oil-free

6. Prime the Drain Edge

Apply Product #660 – Aluminum Filled Primer.
Tack-free in 1–2 hours; recoat within 24 hours at 75°F.

7. Prime the Concrete

Mix and apply neat (resin + hardener only) Product #10 to all concrete and primed metal surfaces.

8. Install Epoxy Mortar

Mix Product #10 with Product #82 Mortar Aggregate.
Trowel into the cleaned drain perimeter and smooth flush. Let cure overnight.

9. Seal the Surface

Apply a squeegee coat of neat Product #10 to fully seal the repair area.

10. Allow to Cure

Let cure for 10–12 hours at 75°F.

11. Topcoat with Product #2 + Anti-Skid

Apply Product #2 – Chemical Resistant Epoxy Coating with Anti-Skid Additive.

12. Apply Second Coat

Repeat Step 11 for added durability.

Why This Works

  • Prevents water migration into lower levels
  • Resists chemical cleaning agents
  • Withstands high-temp washdowns
  • Bonds to both stainless steel and concrete

Need Help?

Contact Epoxy.com Technical Support:
📞 Call: 352-533-2167
📧 Email: info@epoxy.com
🌐 Visit: www.epoxy.com

Illustration

Cross-section of floor drain sealed with epoxy mortar and primer

Blog Details

  • Excerpt: Learn how to seal around stainless floor drains in food processing plants using epoxy systems from Epoxy.com.
  • Tags: epoxy floor drain, trench drain seal, epoxy patching, product #10, food plant waterproofing
  • Category: Floor & Drain Repairs
  • Slug: epoxy-floor-drain-repair

Fixing Floor Damage with Epoxy

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Industrial and commercial floors take heavy abuse. The older the flooring the worse shape it is in. Conventional wisdom says that such a breakdown of the floor is inevitable. There are steps you can take to protect your floor before it gets damaged. Once the damage has happened there are steps you can take to permanently repair most damaged floors.

Floor joints, are the source of many industrial flooring problems. The purpose of these joints (in original construction) is to give the concrete a controlled place for the concrete crack as it shrinks. They sometimes are called expansion joints. In theory they will expand when the concrete gets hot.Indoors, where temperature is somewhat stable, most of their function of these joints has ended after 28 days or so of concrete. Concrete does most of it shrinking in the first 28 days.

wheel across empty joint
A wheel across an empty Joint

The downside of these joints in the concrete is that it gives a place for the concrete to start chipping away. See the highlighted (in blue) corners in the illustration to the right. When wheels pass across the top it hammers the edge in the opposite side of traffic flow. This breaks off tiny pieces of concrete (again drawn in blue as a triangle at the edges of the concrete joint). The bigger the area chipped out earlier, the bigger and faster additional chipping happens. Time goes on and “pot holes”start to form in the concrete joint in direct proportion to the number of times wheels have hit a given spot.This can become a major trip and forklift hazard.

The best way to prevent this concrete damage is to fill the joints with Epoxy.com  – Product #11-100% Solids Flexible Epoxy Joint Filler for Saw Cut Joints. The #11 is semi-flexible so it still allows some joint movement but (unlike caulking) is firm enough to support the hard wheel as it passes over the joint, virtually

wheel across a filled joint
Wheel Supported by #11 as it passes over the joint.

eliminating the pounding and chipping effect on the sides of the joint. See in this diagram how the #11 supports the wheel as it passes over the joint.

For application on flat surfaces Epoxy Joint Filler for Saw-Cut Control Joints Product #11 can be poured or pumped from an Epoxy.com Binary Pumping Systems. In areas where cosmetics are important mask both sides of the substrate before applying the material.

If the areas are bigger you can use Epoxy.com Product #12  blended with silica sand to make a mortar to fill epoxy_joint_repairthe pothole, then re-cut your joint with a concrete saw as shown in the diagram here. The Product #12 can also be mixed with silica sand and used to repair areas in the center of a slab that might have started as a random crack or because of a chemical spill or due to impact damage.

If you need the epoxy mortar to set at a lower temperature and/or faster Epoxy.com Product #10 Epoxy Mortar Resin in fast or cold cure may be the best option.

Here is an outline of getting your flooring ready and some of the types of flooring we can offer you.

I can easily calculate how much material you will need for your floor.  The patching will take a little more effort and some estimation of the geometry of the repairs from you:

  1. Joints
    1. Fill joints with Epoxy.com Product #11 – epoxy.com/11.aspx.If there is spalling at the joint see “pot hole” repair below.
  2. Pot holes
    1. Fill shallow areas with a blend of Epoxy.com Product #12 – epoxy.com/12.aspx -And Epoxy.com Product #71 – www.epoxy.com/71.aspx fumed silica
    2. Fill Deep areas with a blend of Epoxy.com Product #12 and product #82 Mortar Blend Aggregates
  3. Priming
    1. Oil Saturated areas (if any) – Epoxy.com Product #201 – epoxy.com/201.aspx
    2. Areas with moisture vapor transfer issues (if any – see epoxy.com/surfaceprep.aspx ) with Epoxy.com Product #830 – www.epoxy.com/830.aspx
    3. All areas not subject to the items above primed with
      1. Epoxy.com Product #12 – www.epoxy.com/12.aspx or
    4. Epoxy.com Product #899 – www.epoxy.com/899.aspx.
  4. Floor Coating – High Build
    1. High build all purpose epoxy floor coating:  Epoxy.com Product #1 – epoxy.com/1.aspx or
    2. High build mid range chemical resistant epoxy floor coating: Epoxy.com Product #2 – epoxy.com/2.aspx or
    3. High build highly chemically resistant epoxy floor coating: Epoxy.com Product #633 – epoxy.com/633.aspx
  5. Seamless Flooring
    1. Chip Flooring – epoxy.com/chips.aspx or
    2. Solid Colored Standard chemical resistance Flooring
    3. Product #24 Pigmented mortar – www.epoxy.com/24.aspx and silica sand
      1. Top coated with Product #1 – www.epoxy.com/2.aspx  or
    4. For high chemical resistance Epoxy.com Product #2 – epoxy.com/2.aspx
    5. Epoxy Quartz Flooring – www.epoxy.com/15.aspx.
  6. Chemical Resistant Epoxy Flooring
    1. Product #630 and silica sand – www.epoxy.com/630.aspx
    2. Product #633 and silica sand – www.epoxy.com/633.aspx 

Still not sure? Email epoxy.com Technical Support info@epoxy.com  call us at 352-533-2167. We will help you select the right product for your job. We can also help you estimate how much of it you need, and quote you on those quantities.

You can also visit us at www.epoxy.com 24 hours a day 7 days a week.