Everflow · EF-160Everflow EF-160 epoxy moisture vapor barrier primer kit, 3 gallon

At a glance

SKU
EF-160
Vendor
Everflow
MVER
up to 25 lb/1000 ft²
Meets
ASTM F3010
Potable Water
Suitable
Coverage
300 sq ft
Working time
15 to 20 min at 70°F
Weight
30.0 lb
WarrantyIf a product is defective or does not perform to its published specs, we replace it. Limited Warranty
Technical helpMix ratios, install questions, job-site troubleshooting. Mon to Fri, 8 to 5 EST.Contact a pro
Everflow · Moisture Vapor Barrier

Everflow EF-160

Moisture Vapor Barrier (3gal)

EF-160 is Everflow's 100% solids epoxy moisture vapor barrier, a two-component primer that seals damp, vapor-emitting concrete and stops the rising slab moisture that causes epoxy delamination and blistering. At 18 mils it exceeds ASTM F3010 and withstands up to 25 lbs per 1000 sq ft per 24 hr, bonds to slabs cured as little as 14 days, and meets CFIA and USDA requirements for indirect food contact at under...

$192.00

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  • CFIA / USDA Indirect Food Contact Meets CFIA and USDA requirements for indirect food contact
  • LEED v4 Low-Emitting SCAQMD Method 304-91
  • Low VOC (<50 g/L) Low VOC (<50 g/L)
  • Meets ASTM F3010 Moisture vapor barrier standard
  • ASTM Tested Full test data on the TDS
  • Family-Run Since 2004 20+ years in the trade
At a glance

Everflow EF-160

EF-160 is Everflow's 100% solids epoxy moisture vapor barrier, a two-component primer that seals damp, vapor-emitting concrete so an epoxy or polyaspartic floor bonds and stays bonded. Built for cold, humid conditions and green or poorly prepared slabs, it stops the rising slab moisture that causes delamination and blistering and lays a high-strength foundation for the rest of the system.

Sold as MPC-160 under the old name. Same formula, same manufacturer.

100%
SOLIDS
Zero shrink, full build
25
LBS MVER
Per 1000 sq ft per 24 hr
15,000
PSI FLEXURAL
High-strength base
<50
G/L VOC
LEED v4 low-emitting
What makes it work

Stops rising slab moisture before it fails your floor

Everflow EF-160 moisture vapor barrier epoxy, 3 gallon kit
Controls moisture vapor
Withstands emission rates up to 25 lbs per 1000 sq ft per 24 hr at 100% RH, preventing the moisture-driven delamination that destroys floor systems.
Exceeds ASTM F3010
At 18 mils it surpasses the industry standard for vapor permeance.
Works on damp or green concrete
Designed for cold, humid conditions and damp or poorly prepared slabs, and bonds to concrete cured as little as 14 days.
Suitable for potable water
Suitable for direct contact with potable water.
High-strength foundation
15,000 psi flexural, 8,000 psi compressive, 6,000 psi tensile, and 80 to 85 Shore D.
Three colors, top-coatable
Clear, grey, and black. Prime first, then build your Everflow floor system on top.
Planning the job

Coverage and cure.

Per 3-gallon kit. Real coverage depends on concrete porosity and the profile of the slab.

Barrier coat18 mils
~264
sq ft per kit

Cure at 68°F

Working time 15 to 20 min at 70°F
18 to 24 hrRecoat
About 1 dayFoot traffic
About 2 daysVehicle traffic
About 7 daysFull cure

Warmer temperatures speed this up; cooler temperatures slow it down.

PHYSICAL AND MOISTURE
Solids content 100% by weight
Chemistry 2-component epoxy moisture vapor barrier
Water vapor permeability 0.06 g/m2/24hr/mmHg (ASTM E-96), exceeds ASTM F3010 at 18 mils
MVER tolerance Up to 25 lbs per 1000 sq ft per 24 hr (100% RH, 6% Tramex)
MECHANICAL
Flexural strength 15,000 psi (ASTM D790)
Compressive strength 8,000 psi (ASTM D695)
Tensile strength 6,000 psi (ASTM D638)
Hardness 80 to 85 Shore D (ASTM D2240)
Abrasion (Taber CS-17) 0.11 g loss (ASTM D4060)
Pull-off adhesion Over 363 psi, substrate failure (ASTM D7234)
APPLICATION AND CURE
Working time 15 to 20 min at 70 degrees F, 50% RH
Cure at 68 degrees F Recoat 18 to 24 hr, foot about 1 day, vehicle about 2 days, full about 7 days
Coverage 18 mils, about 264 sq ft per 3-gallon kit
Substrate Concrete cured minimum 14 days (for slabs 14 to 28 days old, ask your Latux rep for a deep-penetrating primer), diamond grind to ICRI CSP-2
Apply temperature 41 to 86 degrees F
Limitations Not a waterproofing membrane, not for high hydrostatic pressure
COMPLIANCE
VOC Under 50 g/L (LEED v4 low-emitting, SCAQMD 304-91)
Food and water contact Meets CFIA and USDA requirements for indirect food contact, suitable for potable-water contact
Shelf life 1 year unopened, store 59 to 86 degrees F
Kit to floor

Build the complete system.

What comes in the box, and what goes under and over it. Add any step to your cart from here.

Watch the install

See how EF-160 goes down as a moisture vapor barrier, from prep to the finished film.

In the kit

  • 3-gallon kit: 7.56 L resin (Part A) plus 3.78 L hardener (Part B)
  • 100% solids two-component epoxy system
  • Available in clear, grey, and black

Pairs with

Prime the slab with EF-160, then build your Everflow epoxy or polyaspartic floor on a stable, moisture-controlled base. Diamond grind concrete to ICRI CSP-2, and for slabs cured 14 to 28 days, ask your Latux rep for a deep-penetrating primer.

1Prep the slab You are here
Everflow EF-160
$192.00This item
2Base coat
Everflow EF-100 100% solids epoxy floor coating kit, 3 gallon
Everflow EF-100
$179.99
3Add a lookoptional
4Topcoatfor UV or extra gloss
5Tools
Latux flat squeegee for epoxy floors, red rubber blade on a black steel backing with Latux badge
Latux Flat Squeegee
$35.00
What does a moisture vapor barrier do?

It seals concrete against moisture vapor rising up through the slab. That rising moisture is the leading cause of epoxy delamination, blistering, and bubbling. EF-160 controls it so your floor system bonds and stays bonded.

How much moisture can EF-160 handle?

Applied at 18 mils, it withstands moisture vapor emission rates up to 25 lbs/1000 ft²/24 hrs (100% relative humidity, or 6% by the Tramex method) and exceeds the ASTM F3010 standard for vapor permeance.

Is EF-160 a waterproofing membrane?

No. EF-160 controls moisture vapor but is not a waterproofing membrane and is not designed to resist areas of high hydrostatic pressure. For standing water or hydrostatic conditions, a dedicated waterproofing system is required.

Can I apply it over new concrete?

Yes, it can be applied to concrete cured for a minimum of 14 days. For slabs that are 14 to 28 days old, consult your Latux rep for a deep-penetrating primer. The slab should reach at least 3,635 psi compressive strength.

Is EF-160 safe for potable water contact?

Yes, it is suitable for direct contact with potable water, and it meets CFIA and USDA requirements for indirect food contact in food-plant environments.

How much does one kit cover?

A 3-gallon kit covers about 264 sq ft at the recommended 18-mil barrier thickness.

Do I need to topcoat EF-160?

Yes, EF-160 is a primer/base coat. Build your Everflow epoxy or polyaspartic floor system on top of it. Like other epoxies it will discolor under UV, so it should be covered by your finish system.

How long before I can recoat or use the floor?

At 68°F you can recoat in 18 to 24 hours, return foot traffic in about a day, vehicle traffic in roughly two days, with full cure in about 7 days.

Complete the system