Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Benefits
- Low VOC
- Free of heavy metals
- Excellent chemical and solvent resistance
Applications & Uses
- Applications
- Application Method
- Compatible Substrates & Surfaces
- Typical Uses
- Steel enclosures
- Utility trailers
- Heavy duty equipment
- Application
After preparing the surface, thoroughly mix component 1 before adding catalyst. Mix only the amount of material needed. The base to catalyst proportion must be measured accurately, by volume only, to obtain optimum film properties. Do not use reducers that contain water or alcohol; these react with the catalyst and can cause a variety of problems. Be aware of spray-able pot life. Brushing, rolling and dipping are not recommended.
- Coating Process
- Surface preparation and priming - The most important steps in a successful coating process are cleaning, pretreatment and priming. The following is a brief outline of some basics for unpainted substrates. It is not intended to be all-inclusive. For more information on your particular application contact Cardinal.
- Cleaning the substrate - All surfaces to be coated, must be free of dirt, grease, oil, oxidation, mill scale, and all other contaminants. The surface must be thoroughly dry before painting. Air quality regulations have limited the allowable emissions from cleaning operations.
- Steel - A phosphate chemical conversion coating is highly recommended. When this is not possible, a vinyl acid wash pretreatment primer is recommended such as Cardinal’s 4860 series primers.
- Aluminum - A chemical conversion coating is highly recommended. When this is not possible, a vinyl acid wash pretreatment primer is recommended such as Cardinal’s 4860 series primers.
- Galvanized - Cardinal’s W-303-A surface preparation solution helps improve adhesion followed by a vinyl acid wash pretreatment primer such as Cardinal’s 4860 series primers.
- Stainless Steel - Brush-off or blast clean per SSPC-SP 7 to a uniform profile of 1.5 mils. Cardinal’s W-303-A surface preparation solution can help improve adhesion followed by a vinyl acid wash pretreatment primer such as Cardinal’s 4860 series primers.
- Application Equipment
Most air quality regulations require the paint application transfer efficiency to be 65% or better. This generally means using electrostatic or high volume low pressure (HVLP) spray guns. Otherwise, conventional pressure feed, airless or air assisted airless spray equipment can be used. Air supply lines need water and oil traps.
- Equipment Cleanup
Clean up should be done as soon as possible keeping in mind the pot life of the mixed paint. Avoid leaving catalyzed paint in the lines. Air quality regulations have limited the allowable emissions from cleaning operations.
- Product Limitations
- 77EH is not recommended for outdoor exposure or UV radiation.
- Catalyst reacts with water. Air supply should be dry. Containers should be kept tightly closed. Use urethane grade thinners only.
- Alcohols and glycols interfere with curing chemistry and should be avoided. They can be found in some lacquer thinners and certain synthetic reducers.
- Optimum film properties are dependent upon proper mixing of paint and catalyst.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Gloss (60°) | 0 - 5.0 | ° | — |
| Flash Point | -4.0 | °F | TCC |
| Viscosity (2.8 lbs/gal) | 20 - 25 | " | Zahn Range (#3) |
| Sprayable Pot Life (2.3 lbs.VOC/gal) | 2.0 - 3.0 | hours | — |
| Recommended DFT | 1.0 - 2.0 | mils | — |
Regulatory & Compliance
- Certifications & Compliance
- Regulatory & Compliance
RoHS / WEEE compliant
Technical Details & Test Data
- Cured Film Properties
Testing conducted on 7760-4702 flat light gray, catalyzed with 77EH at 1.5 mils DFT (Dry Film Thickness) over 20 gage Bonderite 1000® test panel cured 30 minutes at 180°F and air dried 14 days.
Cure: Air Dry, ambient air temperature at 78°F.
Catalyst Dust Free Tack Free Dry to Handle Recoat Dry Hard Full Cure 77EH 5 min 5 - 10 min 1 - 2 hrs 2h - 7 days 48 hrs 7 days
No force curing prior to topcoat.
- Coverage
- At 1.0 mil DFT, 65% transfer efficiency(TE)
- Mixed paint, 2.1 lbs/gal : 620 ft2/gal.
- Calculation: 1604 ft2/gal x % volume solids x (TE ÷ DFT)
- Mix Ratio
Two components must be mixed properly to obtain coating performance. Thinning depends on applicator’s regulatory VOC limits.
Mix Parts by Volume 7760 base 10 parts 77EH catalyst 1 part SB-32 4 part VOC 2.1 lbs/gal
Safety & Health
- Safety
- Contains organic solvents. Use with adequate ventilation. Do not breathe vapors or spray mists. If component TLVs are exceeded, a NIOSH-approved air-supplied respirator is advised. See MSDS for TLV information.
- Contents are flammable. Keep from heat, sparks or open flame.
- Allergic reactions are possible. Avoid use by persons with respiratory problems. Avoid contact with eyes, skin, and clothing. Wash thoroughly after handling.
- Eye contact - flush immediately with plenty of water for at least 15 min. and get medical attention.
- Skin contact - wash thoroughly with soap and water for 5 minutes.
- If swallowed, do not induce vomiting and get medical attention immediately.
Storage & Handling
- Shelf Life
1 year from date of manufacture in factory sealed container.