SECTION 09 9643
CHEMICAL-RESISTANT COATING
EDIT NOTE: COLORED EPOXY FLOOR PAINT IS RECOMMENDED TO BE
SPECIFIED ON EXPOSED CONCRETE FLOORS IN LARGE MECHANICAL
EQUIPMENT ROOMS AND OTHER ROOMS WHERE REGULAR FLOOR CLEANING IS
REQUIRED.
PART 1 - GENERAL
1.01
SUMMARY
A.
Section Includes:
1.
B.
1.02
Abrasion and chemical-resistant coating over interior concrete floors.
Related Requirements:
1.
Division 01 - General Requirements.
2.
Section 03 3000 - Cast-In-Place Concrete.
SUBMITTALS
A.
Installation Instructions: Submit manufacturer's recommended instructions for
installation of chemical-resistant sealer for interior concrete floors.
B.
Certificates: Furnish certification that materials meet Specification requirements.
C.
Closeout Submittals: Submit manufacturer's recommended maintenance instructions.
1.03
DELIVERY, STORAGE AND HANDLING
A.
Deliver products in manufacturer's original containers with seals and labels intact.
B.
Store materials in enclosed space protected from weather and out of direct rays of sun.
C.
Store materials above grade.
D.
Maintain storage temperature as recommended by manufacturer.
1.04
PROJECT CONDITIONS
A.
Do not mix or install materials when temperature is less than that recommended by
manufacturer.
PART 2 - PRODUCTS
2.01
COATING
A.
Manufacturers:
1.
BASF, Sonoplex.
2.
BASF, Selbaclad 425.
PROJECT NAME
SCHOOL NAME
10/01/2011
CHEMICAL-RESISTANT COATING
09 9643-1
3.
Jones-Blair/Neogard, FloorTuff.
4.
Fox Industries, FX-533.
5.
Equal.
B.
Composition: Two-component catalyzed epoxy resin coating.
C.
Color: Gray.
D.
Coverage: 250 square feet per gallon per coat.
E.
Drying Time: Allow drying time between coats as recommended by manufacturer.
PART 3 - EXECUTION
3.01
INSTALLATION
A.
Sealer shall be mixed in strict accordance with manufacturer's instructions.
B.
Concrete shall be cured at least 30 days before installation of sealer.
C.
Surface Preparation:
D.
3.02
1.
Holes, crevices, spalled or disintegrated areas shall be properly patched or
filled.
2.
Surface shall be free of soil, dust, base material, oil, grease, paint, curing
compounds and other foreign matter.
3.
Surface shall be cleaned and allowed to dry thoroughly. Cleanse dirty or
contaminated floors with a recommended cleaner as per manufacturer’s
directions. Rinse thoroughly with clean water.
4.
Acid etch the floor with 1:1 solution by volume of 18-20 Baume muriatic acid
and water. Install and allow to stand until bubbling ceases.
5.
Rinse with clean water and squeegee until damp.
6.
Repeat rinsing operation to remove acid. Allow to dry before coating with
sealer.
7.
Floors shall be absolutely dry in accordance with manufacturer's instructions.
Application:
1.
Thin first coat using "Reducer 990" as recommended by manufacturer.
2.
First coat should dry to a matte or flat finish, leaving a barely visible coating.
3.
Allow a minimum of five hours drying time between coats.
4.
Install second coat, unthinned, within 24 hours of application of first coat.
CLEANUP
A.
Remove rubbish, debris, and waste materials and legally dispose of off the Project site.
PROJECT NAME
SCHOOL NAME
10/01/2011
CHEMICAL-RESISTANT COATING
09 9643-2
3.03
PROTECTION
A.
Protect the Work of this section until Substantial Completion.
END OF SECTION
PROJECT NAME
SCHOOL NAME
10/01/2011
CHEMICAL-RESISTANT COATING
09 9643-3