Tips for 5000 100% Solids Clear Polyurea

5000 Polyurea (Always use an 18 inch roller for this product (or squeegee and backroll)
Coating Over Flake:
Only mix what can be used in 30 minutes (if potlife recommendations are followed). Pour the material out onto the floor and work it evenly across the floor by using the backroll technique. Avoid putting it on thicker than 150 sq ft per gallon. Watch for low spots or puddles because they will be noticeable when dry because the 500 will level out like glass in that area and be extra shiny.
Coating Over Solid Color or Stained Floors:
It is very important to use lint free rollers because the 5000 is so shiny it will show every spec of dust (much like a car paint job). Some specks may look like a bubble but they are only a spec of dust. Most of these will be unnoticeable after a few week break in period of wear. Be sure to get the material on quickly and evenly so it is fluid enough to release any bubbles that may be caused during application. As it begins to thicken the bubbles will not be able to escape. Because the floor is a solid color it will show bubbles more readily as the human eye is naturally drawn to it. If unsure of your ability, please do a sample area to familiarize yourself with the material. 5000 is used by many applicators to seal decorative concrete because of its gloss and odor free nature, however these applicators know how to use it properly.
Outgassing Bubbles Caused By Normal MVE:
Apply the 5000 when the temperatures are beginning to cool if you want to avoid bubbles caused by mve outgassing. Also try and do it when the temperature of the day is about 20% lower than the high for the day. These are some proven techniques that do work in regards to reducing the bubbles that can occur within the film by moisture vapor rising from within the concrete.
Higher Than Normal MVE:
Some applicators have had great success using a fast setting primer like our 5205 as a primer over slabs that have a higher amount of MVE. This is probably due to the fact that the 5205 starts to set up and go hard before any large amount of MVE has a chance to rise to the surface. As we learn more we will update this area. Obviously you may still get some bubbles and if so, go ahead and sand then and re-apply the 5205. This take care of it most of the time.
High MVE That Can Cause a Coating To Fail:
Test those suspect floors using our moisture test kits to determine the amount of MVE. Basically if you are applying a clear you will need to use non-yellowing material like our 5205, however we do not recommend that at levels higher then 5lbs at this point. For interior areas the best vapor blocking epoxy is 4100 but beware that it will darken the surface substantially due to its deep penetration. If you are unsure of how to proceed call VBP and speak to a technical person for some primer options.
Pot Life:
As is the case with most epoxy's yet more so with 5000, it is very important to keep the material cool and also to get it out onto the floor before it starts to exotherm (get hot and start to set up). Pour out the material into bands onto the floor and then begin spreading the material.
Accelerating:
Use 50 accelerator to increase the set time in cold environments. at 50 degrees 1 accelerator will cause the material to dry as if it were 70 degrees, use 2 accelerators at 40 degrees. Do not use accelerators to shorten the set time so the job can be done faster because this can decrease the adhesion and MVE protection.