PC-555 Novolac Coating

A high solids modified cycloaliphatic cured multifunctional epoxy Novolac coating. The filler is ceramic which maximizes chemical, abrasion and thermal shock resistance. Has exceptional chemical and solvent resistance for an air cured system. Designed for use in splash and spillage of 98% Sulfuric Acid and 37% HCL. This product is used as a Finish Coat on steel, concrete and polymer materials.

Features
1. Outstanding resistance to acids, alkalis, most industrial chemicals and many solvents
2. May be applied in cold, damp conditions. Cures down to 45 F.
3. For use on concrete, epoxy mortars and steel filler
4. Excellent for secondary containment
5. V.O.C. is less than 2 lbs/gallon when reduced for spray
6. USDA approved
7. Excellent abrasion resistance with ceramic
8. Excellent in battery storage room areas

Color Dark Gray
Finish Semi Gloss
Volume Solids 82 2%
Theoretical Coverage (per gallon at 1.0 DFT.) 1310 ft
Recommended Thickness 7 – 10 mils DFT at 180 – 260 sq. ft./gal.
Mixing Ratio 4:1 – 4 parts Base to 1 part Hardener
Induction Time None
Pot Life 1 hour at 75 F
Thinning S-74 Reducer
Application Spray, roll or brush
Application Temperature 45 to 120 F
Dry Service Temperature 280 F
Recoat Time at 75 F 8 – 24 hours
Clean Up S-74
SA-17
Packaging 1 gal. kit
V.O.C 1.24 LBS/gallon
148 GMS/Liter
Shelf Life 1 Year
Uses
Recommended for structural steel, tank linings, vessels, equipment, racks, storage tanks, towers, truck unloading pads, bleach plants, dye rooms, battery storage areas, in chemical processing plants, pulp and paper mills, sewage and waste water treatment facilities, fertilizer plants, refineries, electric generating stations, coal handling sites, mines and marine installations. Used extensively in secondary containment areas, concrete floors, walls and other structures.

Surface Preparation
Steel
Remove all dirt, oil grease, soil, chemical contaminants, and any other foreign matter before abrasive blast cleaning. Prepare and paint only clean, dry surfaces in accordance with Steel Structures Painting Council (SSPC) or National Association of Corrosion Engineers (N.A.C.E.) specifications.

Steel- (Non-Immersion) Corrosive Service – Sand blast to a “Near-White” blast finish as outlined in SSPC-SP10- 63T or N.A.C.E. No. 2 specification. Prime all blasted steel within 4 hours to prevent rust back. Apply 1 or 2 coats of CM-15, PC-500 or PC-517.

Steel – (Immersion): Sand blast to a “White Metal” blast finish as outlined in SSPC-SP5-63 or N.A.C.E. No. 1 specification. A 1-2 mil profile is required when blasting. Prime all blasted steel within 4 hours to prevent rust from reoccurring. Apply 2 coats of PC-500 or PC-517 depending on service.

Gulf Coast Paint Mfg., Inc. recommends four types of surface preparation. Any one of the four surface reparations may be sufficient or a combination of the four may be required depending on the condition of the concrete Surface.

Concrete
1. High Pressure Wet Abrasive Blast Cleaning
All loose and unsound concrete must be mechanically removed down to sound concrete by means of power tool equipment, such as, chipping/scaling hammers, rotary scalers, etc.

High pressure water blast with sand injection all surfaces to remove ail laitance, contaminants, and other foreign deposits to provide a sound, clean surface. Use clean dry air to blow down these areas to remove excessive moisture.

2. Acid Etch
Apply Gulf Coast Paint’s Clean & Etch Concrete Acid Solution at a spread rate of approximately 75-150 square feet per gallon.

Work the solution into the concrete with a stiff broom or fiber brush. Allow solution to remain on the concrete surface for approximately 10 minutes or until the effervescing and bubbling ceases. Then flush floor thoroughly with clean, fresh water to remove all laitance, dirt, and other foreign materials.

Random pH readings using distilled water should be made to insure all contaminants have been removed. A final pH between 7.0 and 8.5 is acceptable. Also, at the same time, it is recommended that a “Water Dissipation Test” be made on random areas of the floor to determine the proper degree of porosity has been achieved.

NOTE: Do not allow the Clean & Etch solution to dry on the floor before flushing off because dirt, etc., can be redeposited in the pores of the concrete.

3. Vacuum Blast
All areas of the existing concrete may be Vacuum Abrasive Blast cleaned using a Wheelabrator Blastrac Shot Blast Machine with Dust Collector. A proper anchor profile pattern shall be achieved to provide maximum adhesion of the recommended system. A thorough washing may be necessary prior to blasting to remove all foreign matter. Check with Blastrac Mfg. for proper shot and application procedures.

4. Dry Abrasive Blast
Abrasive blast concrete surface to remove all laitance, loose concrete, coating, sealers, etc. It is necessary to achieve a rough anchor pattern and get to sound concrete. All blast material and foreign matter must be removed before application.

In all cases of surface preparation, the pH should be checked. Also, a “Water Dissipation Test” should be made on random areas of the floor. A “Vapor Barrier Test” should also be run on the concrete. Consult Gulf Coast Paint Mfg. for specifics on testing. Do not apply to slabs on grade unless a heavy unruptured vapor barrier has been installed on the slab. New concrete must be cured at least a minimum of 28 days at 75 F before applying a coating. All laitance, efflorescence, chemical contaminants, grease, oil, and other foreign material must be removed. The prepared surface must be clean, dry and structurally sound. Apply appropriate concrete Primer (eg PC-155 or PC-1702)

Mixing Instructions, Application Procedure & Recoat Time
Mixing Instructions
Stir each component to a uniform consistency using an explosion proof variable speed drill with a Jiffy mixer. Then mix 4 parts Base A with 1 part Hardener B for 3 minutes using the powered Jiffy mixer. PC-555 may be reduced up to 20% with S-74 per mixed gallon. Do not substitute reducers.

Application Procedure
1. Airless Spray
Gun – Graco – 205-591
Pump-30:1
Tip Range. – 0.019″-0.025″ at 2500 PSI
Hose – 1/2″ ID
Pressure – 2400-2700 PSI

2. Conventional Spray
Gun – DeVilbiss MBC 510 or JGA
Fluid Tip-“E”
Air Cap – 64 or 704
Atomizing Pressure – 20-60 PSI
Pot Pressure – 20-50 PSI
Hose-1/2″ ID

3. Brush – use pure bristle brush

4. Roller – medium nap solvent resistant phenolic core

When spraying, use a 50% overlapping Crosshatch pattern to minimize the occurrence of pinholes. Do not apply to surfaces below 45 F. Or above 120 F. Do not apply over dew or frost. Do not apply if the temperature is within 5 of the Dew Point.

Recoat Time
Time may be longer for thickness above 7 dry mils. For safety and proper product curing, good ventilation is necessary when painting indoors or in confined areas. Be sure the batch numbers are all the same to provide uniform color. Epoxy coatings may yellow or darken during application and after final cure. This will effect the color but will have no effect on the performance of the product. Heaters that emit carbon dioxide and carbon monoxide can cause the coating to yellow.

Cautions
PC-555 is Flammable. Keep away from all sources of ignition during mixing, application and cure. The Hardener and Base can cause eye and skin burns as well as allergic reactions. Use goggles, fresh air masks or NIOSH approved respirators, protective skin cream and protective clothing. This product is sold without warranty as to performance expressed or implied. Users are urged to make their own tests to determine the suitability for their particular conditions.

For Professional and Industrial use only.
Keep Away from Children.

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