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CIM 61TN and 61TN-RC Epoxy Primer can be used to prime a variety of surfaces.
- May be used as a primer for freshly blasted metal to prevent flash rust from occurring, prior to coating with CIM.
- May be used as a primer for properly prepared concrete to minimize the effects of outgassing.
- Approved for contact with potable water in accordance with ANSI/NSF 61.
- Surface Preparation
General
- Substrates must be clean and surface dry with no oils, grease or loose debris.
- Perform adhesion tests to confirm adequacy of surface preparation.
Concrete
- ICRI-CSP 4-6 surface profile exposing aggregate.
- Concrete must exhibit minimum 3,000 psi compressive strength and be free of release agents and curing compounds.
- The substrate must be clean, surface dry and free of contaminates.
Steel
- Minimum 3 mil profile.
- Immersion service – SSPC-SP10 / NACE No. 2 Near White Blast.
- Non-Immersion service – SSPC-SP6 / NACE No. 3 Commercial Blast.
Other Metals
SSPC-SP1 solvent clean and abrade substrate to roughen and degloss the surface.
WoodSubstrate must be clean, surface dry and free of surface contamination.
Color
- CIM 61TN and 61TN-RC Epoxy Resin are yellow.
- CIM 61TN and 61TN-RC Hardener are light brown.
- Mixed and Cured: tan
Mixing Ratio
1 Part Resin: 1 Part Hardener by Volume
- Temperature Conditions
Throughout the application and initial curing period, the surface should be minimum of 5°F (3°C) above the dew point.
- Use CIM 61TN hardener when air and surface temperatures are above 50°F.
- Use CIM 61TN-RC rapid cure hardener when air and surface temperatures are below 50°F.
DO NOT USE if air and surface temperatures are below 35°F. Maintain material temperature of 60°F to 90°F prior to mixing.
- Mixing
Thoroughly mix each of the two components separately: DO NOT HAND MIX. Use a power mixer. Consistency should be uniform and smooth with no settled pigments remaining at the bottom. Pour entire contents of each component into a clean 5 gallon pail and thoroughly mix until color and consistency are uniform. ALLOW A MINIMUM OF 15 MINUTES INDUCTION TIME BEFORE APPLICATION.
The two components must be combined in proper ratios for this product to set up properly. Failure to adequately mix each component separately to achieve a uniform dispersion or failure to blend to the proper volume proportion will result in a failure of the coating to perform adequately. DO NOT THIN.
- Application
Equipment
Air Spray, Airless Spray, Brush, or Roller ( 3⁄8" or 1⁄2" synthetic nap).
Equipment Airless Spray Pump 0:1 pump ratio at 60-100 psi operating air pressure
Spray Gun Tip 0.015 to 0.017 tip with 60 mesh filter
Primer
Apply primer at a coverage rate of 5 to 10 wet mils per coat. When coating porous substrates apply primer when the substrate is in a temperature declining mode and not in direct sunlight. A uniform coating free of holidays or pinholes is necessary to minimize outgassing effects during the application of the CIM coating to porous surfaces such as concrete. Surfaces may require additional coats to achieve a pinhole free application.
Theoretical Coverage
320 sq. ft./gal. (about 5 wet mils). Irregular surfaces, waste, spillage, and application technique effect actual coverage.
CIM Coating
Allow the primer to cure at least 12 hours at 70°F (21°C) to permit solvent loss. Failure to allowsufficient time for solvent loss may result in the formation of solvent blisters or poor adhesion to CIM. Prior to CIM coating application, test for the presence of amine blush by testing the pH of the epoxy primed surface. The pH should be 7-8. If the pH is higher than 8, solvent wipe with methyl ethyl ketone until the pH is within the recommended range. Application of CIM coating to epoxy primer with a high pH will result in poor adhesion. When applied to porous surfaces, the primer will greatly reduce the effects of outgassing, but it may not completely prevent the occurrence. CIM coatings and the primer should be applied following C.I.M.’s published instructions including application of the coating when substrate temperature is declining.
Recoating
Minimum/Maximum recoat is 12hrs/72hrs at 70°F.
Allow at least 12 hours cure time between coats or before applying the CIM coating . If the primer cures for more than 72 hours, or the primer is otherwise contaminated use one of the following procedures:
- Test surface for pH and check for contaminates. Solvent wipe with methyl ethyl ketone to clean surface and re-apply the Primer if within 30 days.
- Test surface for pH and check for contaminates. Solvent wipe with methyl ethyl ketone to clean surface. Abrade the existing primer. Solvent wipe with MEK to clean surface.
Apply CIM Bonding Agent and apply CIM coating or lining. If the primer is damaged during abrading. An additional application of primer may be necessary to insure a monolithic primer
application.Clean Up
Clean all equipment immediately after use with xylene or MEK. Thoroughly flush spray equipment before coating has had a chance to set up.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Solids by Volume (Mixed (1123 dry mil x sq. ft./gal.)) | 70.0 | % | ASTM D 2697-7 days |
| Density CIM 61TN and 61TN-RC Resin | 13.69 | Ibs./gal. | - |
| Density CIM 61TN Hardener | 12.52 | Ibs./gal. | - |
| Density CIM 61TN-RC Hardener | 12.46 | Ibs./gal. | - |
| VOC (EPA 24) | 240 (2.0) | g/l (lb./gal.) | - |
| Flash Point Epoxy Resin | 24.0 | ºF | - |
| DOT Class Epoxy Resin | Class 3 | - | UN1139, PG III |
| DOT Class Epoxy Hardener | Class 3 | - | UN1139, PG III |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Precautions
Mixing equipment and surfaces where material is applied must be ABSOLUTELY DRY. Do not apply in wet weather, when rain is imminent or when the surface may become wet before the coating is cured. Strictly observe mixing, induction times and substrate temperature requirements
- Safety Information
This product contains ingredients which are considered to be hazardous. Solvent exposure may cause dizziness, headache or nausea. Prolonged exposure may cause permanent brain or nervous system damage. Adequate health and safety precautions should be observed during storage, handling, application and clean-up.
WARNING Flammable : Use only in well ventilated areas. Do not store or use near open flame, sparks or hot surfaces. Keep tightly closed. Avoid contact with moisture or water.
Packaging & Availability
- Packaging
CIM 61TN and 61TN-RC Epoxy Primer are packaged in 2 gallon kits consisting of 1 gallon of Resin and 1 gallon of Hardener.
Storage & Handling
- Shelf Life
- 1.5 years (Epoxy Hardener), 1.5 years (Epoxy Resin)
- Storage
Store at 40°F to 110°F (5°C to 43°C) temperature. NFPA Class IC.