Secondary Containment Rehabilitation with Bio-Seal E199 & Bio-Gard E255
DESCRIPTION
CHALLENGE
A small chemical manufacturing plant had worn and unprotected concrete that was being degraded by chemical exposure and equipment impact. Limited down time and application restrictions were key concerns of plant personnel
SOLUTION
Our high chemical resistant Bio-Seal E199 saturating resin and Bio-Gard E255 rollable coatings were used to create a non-skid, chemically resistant surface.
IMPLEMENTATION
The concrete was washed with fresh water and detergent to remove chemical contaminants. After drying, a diamond grinder was used to remove the top layer of concrete exposing the pores of the concrete. THis enables the Bio-Seal E1499 to penetrate and saturate into the concrete.
After allowing the Bio‐Seal E199 to start curing, the first coat of Bio‐Gard E255 in Blue Grey was mixed and applied. Application was easily completed by standard nap roller. The first coat was allowed to cure until gummy, ~8 hours at 80F ambient temperatures before applying the second coat. Application of Bio‐Gard E255 in Haze Grey was completed byroller.
Immediately after application while top coat was still wet, medium grit blasting sand was tossed onto the coating creating a uniform distribution of grit. This is done to add a non-skid texture to the coating otherwise high humidity or standing moisture will create a very slippery surface. The grit was “back rolled” with the used roller, encapsulating the grit into the coating to prevent loss over time.
OUTCOME
The containment area was transformed from a stained, chipped concrete slab into a chemically protected and attractive surface. Non-Skid grit prevents future slip concerns and the Kevlar modified Bio-Gard E255 protects against impact from drums and other maintenance equipment.
PRODUCTS USED:
Bio-Seal E199 Chemical Resistant Epoxy Primer Sealer