|1. Excellent adhesion to concrete and masonry surfaces
2. May be applied to damp or moist surfaces
3. For use under all our epoxy flooring systems
4. Develops early tack, yet has long a “open time” for 100% Solids Epoxy systems
5. The special tack helps prevent delamination of toppings and mortars at “bond line”
6. Excellent as a clear concrete sealer by itself
7. V.O.C. Compliant
|Volume Solids||74% 2%|
|Theoretical Coverage (per gallon at 1.0 DFT.)||1187 ft|
|Recommended Coverage||150 – 250 sq. ft per gal to yield approx. 5 – 8 mils DFT|
|Mixing Ratio||1:1 by volume|
|Pot Life||20 – 30 minutes at 75 F|
|Application||Brush, spray, or roller|
|Application Temperature||45 to 100 F|
|Recoat Time @ 75 F (For 100% Solids Resins & 100% Solids Coatings)||1 – 4 hours. Do not let primer dry when applying 100% solids material|
|Recoat Time @ 75 F (For Solvent Coating)||6 – 8 hrs. minimum, or overnight, and 24 hours maximum. PC-155 should be DRY before recoating with a solvent coating. Do not apply while still tacky.|
|Packaging||10 gal kits
|For priming concrete surfaces, for bonding monolithic epoxy grouts, mortars and toppings such as PC-1000, PC-1100, PC-1175, PC-1405, PC-1500, PC-1800, PC-1850, CF-613, etc.
As primer on concrete under high performance coatings and linings, such as CM-15, PC-500, PC-517, PC-555, etc.
As a sealer coat for new or old concrete surfaces to prevent penetration of water and chemicals.
To help eliminate “Dusting” of the concrete, spalling and deterioration.
As an interface adhesive bonding agent to insure adhesion of new concrete to old concrete.
Ideal for warehouse floors, loading docks, shop floors, garages, aircraft hangars, exterior walkways, sumps, tank pads, pump supports, silos, and other concrete surfaces. Can be made into a non-skid finish.
|Bond Strength : Stronger than concrete which failed first (ACI Test 59-43)
Tensile Elongation : 10% per ASTM D638-60
Tensile Strength : 3500 psi per ASTM C190-99
Water Absorption : 0.3% per ASTM D543-60
|Gulf Coast Paint Mfg., Inc. recommends four types of surface preparation. Any one of the four surface preparations may be sufficient or a combination of the four may be required depending on the condition of the concrete surface.
1. High Pressure Wet Abrasive Blast Cleaning
High pressure water blast with sand injection all surfaces to remove all laitance, contaminants, and other foreign deposits to provide a sound, clean surface. Use clean, dry air to blow these areas and to remove excessive moisture.
2. Acid Etch
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.
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
4. Dry Abrasive Blast
In all cases of surface preparation, the pH should be checked. A final pH between 7.0 and 8.5 is acceptable. 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.
New concrete must be cured at least a minimum of 28 days 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.
|Mixing Instructions, Application Procedure & Recoat Time|
PC-155 is prepared by mixing 1 part Base (Part A) to 1 part Hardener (Part B) with an explosive proof variable speed drill with a Jiffy mixer. PC-155 should be used without any induction time. Do not thin, use as supplied.
PC-155 may also be sprayed, but then should be “back-rolled” to produce a uniform coat. For small areas and “cutting in” use pure bristle brush. Do not apply to surfaces below 45 F or above 100 F.
For safety and product curing, proper ventilation is necessary throughout application and cure. When using pigmented Finish Coats, be sure the batch numbers are all the same to provide a uniform color.
Do not apply if the surface temperature is within 5 of the Dew Point. PC-155 Base and Hardener should be stored at 75 F-85 F to help maintain a lower, reliable viscosity. Do not apply when material is cold. Allow a minimum of 72 hours with good ventilation before putting floor back into service. If a non-skid finish is required, prepare a test patch for owner approval prior to application.
These systems are designed for application by professional experienced flooring contractors.
When used as a primer for solvent coatings, PC-155 must be dry. Under the same conditions this will be 6-8 hours minimum and 24 hours maximum. If the recoat time is in excess of 24 hours, sanding with 80-100 grit open paper is required, then, another coat of PC-155 Primer should be applied.
|PC-155 is flammable. Keep away from all sources of ignition during storage, mixing, application and cure.
The Hardener (Part B) either alone or when mixed with Base (Part A) can cause eye and skin burns as well as allergic reactions.
When spraying, the use of goggles, fresh air masks or NIOSH approved respirators, protective skin cream, and protective clothing is recommended as a standard practice.
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.
PC-155 is for professional only.
Prime-Crete PC-155 Clear Epoxy Damp Concrete Primer
PC-155 is a moisture tolerant two component modified Polyamine Adduct Cured Clear Epoxy designed as a concrete primer to be used under our epoxy grouts, mortars, toppings, high performance coatings and lining systems. The low viscosity provides deep penetration into the concrete for excellent surface adhesion.