- Indirect Food Contact Meets requirements for indirect food contact
- LEED v4 Low-Emitting SCAQMD Method 304-91
- Low VOC Per product data sheet
- ASTM Tested Full test data on the TDS
- Family-Run Since 2004 20+ years in the trade
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 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.
Stops rising slab moisture before it fails your floor
Technical specifications
| 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 requirements for indirect food contact, suitable for potable-water contact |
| Shelf life | 1 year unopened, store 59 to 86 degrees F |
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.
Ordering
Ships free in the US. Add your kit to the cart, then add your Everflow base and topcoat in a click. Running a large job or need contractor pricing? Message your Latux rep and we will set you up.
Formulated for professional installers and supported by Latux.
Frequently Asked Questions
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 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.





