SimironMoisture vapor barrier
Stop the slab from lifting your floor.
Moisture vapor barrier primers and MVB systems that stop slab moisture before it lifts your finish. Field-tested and shipped nationwide from Exclusive Resin Supply.
What it is
The number one cause of a callback.
Slab moisture is patient and it is brutal. A floor can look perfect for weeks, then vapor pressure pushes through and the coating bubbles, delaminates, or whitens. A moisture vapor barrier is the insurance that keeps your reputation intact.
We stock the MVB primers that seal a green or damp slab so the system above it can cure and stay put. Test first, then barrier, then build.
Slab moisture does not care how good the topcoat is.
Where it shines
Where it earns its place.
New construction, ground-level slabs, anything without a vapor retarder poured under it, and any floor that has already bubbled once. If the concrete can wick moisture, vapor pressure will find the weakest bond in your system and push it loose. A barrier is how you stop that before it costs you a re-do.
This is not a glamorous part of the catalog and it is one of the most important. The crews that test slabs and barrier when the numbers call for it are the crews that do not get the angry phone call six weeks later. We stock the primers and the test kits both.
Tested before it ships
The owner’s read on it.
These barriers earned their place by holding back moisture on slabs that would otherwise have lifted a finish. Tested where it counts, before it reaches your job.
“Slab moisture does not care how good the topcoat is.”
Pairs well with
What goes down with it.
Epoxy build coat
goes down once the slab is sealed
Moisture test kits
measure before you barrier
Self-leveler
flatten a sealed slab before the finish
Questions from the bench
Spec & support
How do I know if I need a moisture barrier?
Test the slab. New concrete and slabs without a vapor retarder under them are prime suspects. We stock test kits so you are not guessing.
What happens if I skip it?
On a wet slab, vapor pressure can bubble or delaminate the floor weeks later. That is the classic callback this product prevents.
Can I coat a new slab right away?
Fresh concrete holds a lot of moisture. Often you need a high-tolerance MVB to coat early. Tell us the slab age and test numbers.
Do I need to test the slab first?
Always. Test first, barrier second, build third. Bring us the calcium chloride or RH number and we spec the barrier around it. Skipping the test is how floors fail.
Will a barrier fix an already-failing floor?
No. It is preventive. A failing floor needs diagnosis and likely removal first. Call and we will talk it through.
Rooted here
Tracy, California, and proud of it.
Our seat in the Lathrop Chamber of Commerce keeps us answerable to the businesses down the road. We sponsor Lathrop Little League and the Junior Spartans because those families live here too. Freight goes out nationwide, and every box still starts on the bench in the valley.
We ship coast to coast. This bench is still home.
Set up an account
Stock the way you work.
Not sure which fits? Call the bench and tell us how many floors you run in a month, and we will point you to a Job Kit, Pro Crew or Shop Account. Ordering itself happens through our shop.
Job Kit
Per JobFor the one-off floor
- Everything for a single pour
- Matched base, color and topcoat
- Owner walks you through it
- Ships nationwide, or pick up in Tracy
Pro Crew
VolumeFor the working installer
- Volume pricing across every line
- Priority on the bench
- First look at new systems
- Seat at the training academy
Shop Account
WholesaleFor the crew that runs daily
- Standing wholesale terms
- Custom flake blends to spec
- Stock held for your schedule
- Direct line to the owner
Get in touch
Tell us what you're pouring.
Anything from one bucket to a standing wholesale account, pickup or freight, or a seat in training. A person who has poured this material reads every message.
- (209) 208-4656
- chris@exclusiveresinsupply.com
- 392 W Larch Rd, Suite 11, Tracy, CA 95304
Putting down moisture vapor barrier?
Talk to the owner about quantities, or browse the rest of the catalog.
Need it installed?
Our sister company, Exclusive Resins, installs epoxy, flake and metallic floors across the Central Valley, out of the same Tracy building.