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PRO-POXY TYPE III DOT |
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Low-modulus, low-viscosity epoxy bonding agent
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Compliances
ASTM-C-881-90, Type III, Classes B & C
Meets USDA specifications for use in food-processing areas
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Features
- Meets AASHTO-AGC-ARTBA Task Force 34, October 1995
- Excellent bond strength
- Moisture insensitive, nonflammable
- High early strength
- Easy to mix - 1:1 ratio
- Low modulus, low viscosity
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Description
A solvent-free, moisture-insensitive, 100% solids, low-modulus, two-component bonding agent. Meets ASTM-C-881, Type III, Grade 1, Classes B & C. Also meets USDA specifications for use in food processing areas.
Excellent for use as a binder for concrete skid-resistant overlays on bridges and elevated slabs.
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Usage
- Bonding skid-resistant overlays to bridges and elevated slabs
- For use in epoxy mortar for patching
- For use as a low-modulus bonding agent
Coverage
| Minimum Expoxy & Aggregate Coverage Rates |
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Epoxy Rate |
Aggregrate Rate |
| Course 1 |
1 gal./40 sq. ft. (1 L/m2) |
10 lbs./sq. yd. (5.4 kg/m2) |
| Course 2 |
1 gal./20 sq. ft. (2 L/m2) |
14 lbs./sq. yd. (7.6 kg/m2) |
| Mortar Coverage Rates |
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Mixed Epoxy/Aggregrate Rate |
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1 gal./808 in.3 (3.8 L/317 cm3) |
Packaging
1 gal./3.8 L units (two .5 gal. cans)
2 gal./7.6 L units (two 1 gal. cans)
10 gal./37.9 L units (two 5 gal. pails)
110 gal./416.4 L units (two 55 gal. drums)
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Application
Bonding Skid-Resistant Overlays:
| 1 |
Repair delamination, potholes and cracks with PRO-POXY 2500. |
| 2 |
Clean surface by shotblasting to remove all contaminants. Remove dust and debris by blowing off with oil-free compressed air. |
| 3 |
Mechanically mix component A with component B 1:1 by volume with Jiffy type mixer and low-speed variable drill at 300 rpm for a minimum of 3 minutes. Mix only the quantity that can be used within its gel time. |
| 4 |
Apply neat PRO-POXY Type III DOT by notched squeegee at the specified rate. |
| 5 |
Broadcast select aggregate to refusal. The aggregrate should be angular grain silica sand or basalt having less than 0.2% moisture and free of dirt, clay, etc. The silica sand or basalt should have a minimum Mohs scale hardness of 7 unless otherwise approved. |
| 6 |
After initial cure of first course, remove excess aggregate. Do not open to traffic. |
| 7 |
Apply second course of epoxy and aggregate. Remove excess aggregate. Allow to cure following the table below. Open to traffic. |
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| Minimum Curing Times of PRO-POXY Type III DOT Overlay |
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Average Temperatures of Overlay Component & Substrate |
| Min. Cure Time |
60-64°F
16-18°C |
65-69°F
19-21°C |
70-74°F
22-23°C |
75-79°F
24-26°C |
80-84°F
27-29°C |
85+°F
29+°C |
| Course 1 |
4 hrs |
3 hrs |
2.5 hrs |
2 hrs |
1.5 hrs |
1 hr |
| Course 2 |
5-6 hrs |
5 hrs |
4 hrs |
3 hrs |
3 hrs |
3 hrs |
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Resin Properties
| Laboratory Tests |
Results |
ASTM C-881 Specifications |
| Mix Ratio |
1:1 by volume |
None |
| D-695 Compressive Modulus |
64,820 |
130,000 maximum |
| D-638 Tensile Strength |
2,610 psi |
none |
| D-638 Tensile Elongation |
49% |
30& minimum |
| C-882 Bond Strength (14-day cure) |
3,470 psi |
1,500 psi minimum |
| D-570 Absorbtion |
0.19% |
1.0 maximum |
| C-881 Gel Time |
30 minutes (1) |
30 minutes minimum |
| C-881 Brookfield Visc RV3 at 20 rpm |
1,425 cps |
2,000 cps maximum |
| D-2240 Shore D Hardness |
69 |
none |
| C-883 Shrinkage |
Pass |
Pass |
| C-884 Thermal Compatibility |
Pass |
None |
| AASHTO-T-277 Chloride Ion Permeability |
0.9 coulombs |
None |
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Grout Properties
Sand to resin – 3.5:1 by volume
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| Laboratory Tests |
Results |
ASTM C-881 Specifications |
| C-579 Compressive Strength 3 hrs (2) |
1,100 psi |
N/A |
| C-579 Compressive Strength 24 hrs (2) |
7,500 psi |
N/A |
| C-579 Compressive Strength 48 hrs, moist cure (2) |
7,000 psi |
N/A |
1 Class B
2 C-579 Method B with plastic inserts
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Limitations
- Concrete must be saturated surface dry (SSD) before applying.
- Not for use on exterior slabs on grade subject to freezing.
- Do not thin with any solvents.
- PRO-POXY TYPE III DOT is a vapor barrier after cure.
- Minimum age of concrete must be 28 days before applying as an overlay.
- Minimum age of concrete must be 5-7 days, depending on curing and drying conditions before applying as a mortar.
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Cleanup
EQUIPMENT: Uncured material can be removed with Unitex CITRI-CLEAN or other approved solvent. Cured material can only be removed mechanically.
MATERIAL: Collect with absorbent material. Flush area with water. Dispose of in accordance with local, state and federal disposal regulations.
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First Aid
EYE CONTACT: Flush immediately with water for at least 15 minutes. Contact physician immediately.
RESPIRATORY CONTACT: Remove person to fresh air.
SKIN CONTACT: Remove any contaminated clothing. Remove epoxy immediately with a dry cloth or paper towel. Solvents should not be used as they carry the irritant into the skin. Wash skin thoroughly with soap and water.
CURED EPOXY RESINS ARE INNOCUOUS.
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Cautions
- Component A: Irritant
- Component B: Corrosive
- Product is a strong sensitizer. Use of safety goggles and chemical resistant gloves are recommended.
- Use of a NIOSH/MSHA organic vapor respirator is recommended if ventilation is inadequate.
- Avoid breathing vapors.
- Avoid skin contact.
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