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DESCRIPTION AND RECOMMENDED USES: 100% solids, Dura-Coat Krete-Seal 800 is a two component ambient- temperature curing epoxy coating. It is designed particularly as sealing and protection coating for concrete. Its low viscosity allows the Dura-Coat Krete-Seal 800 to flow easily, sealing cracks and filling pits. Dura-Coat Krete-Seal 800 is convenient-to-use, non-sagging easily applied by brush, roll and spray. It is an excellent primer for using with Dura-Coat concrete top coats.
| Maximum Temperature (Dependent on service) | Wet Service | Dry Service | 50°C | 60°C | 122°F | 140°F |
|---|---|---|---|
| Chemical Resistance | Water | Alkalis | Inorganic Acids | Organic Acids | Organic Solvents | Excellent | Excellent | Good | Good | Good | |
| Solids by Volume | 100% | ||
| Mixed Density | 1.2 | ||
| Shore D Durometer Hardness | (ASTM D 2240) | 83 | |
| Pot life | 35 MIN / KG at 72ºF | ||
| Vertical SAG Resistance at 21°C (70°F) and 0.25mm (10mils) | No sag | ||
| Coverage for 10Kg kit | 355sf @10mils | 33m²@250 micron | |
| Mix Ratio | 2:1 by weight | Base: Activator | |
| Color | Clear amber | ||
| Shelf life (unopened containers) | 3 years at 55-95ºF (13-35ºC) | ||
Surface Preparation
Proper surface preparation is critically important for the long-term performance of the Dura-Coat Krete-Seal 800. The prepared concrete surface must be structurally sound, free from all contaminants and roughened to an >ICRI CSP 3 profile (similar to #60 grit sandpaper). If a vapor barrier is not present, check for vapor transmission.
Surface Cleaning & Profiling Methods
Hydro-Blasting Scarifying
Steel Shot-Blasting Dry Abrasive Blasting
Mixing
Thoroughly mix Activator into Base with mixing stick or drill with low speed mixing blade scraping sides and bottom of container or mixing board. Mix by weight 1.9-part Base to 1-part Activator. Mix thoroughly to produce an even colored and streak-free material. THINNING: Never thin.
Application
Application temperature range 10°C (50°F)-32°C (90°F) (substrate).
Dura-Coat Krete-Seal 800 may be applied by spray system, brush, or roller.
Brush: medium to stiff bristle of sufficient quality that bristles do not pull out and stick in coating (epoxy glued bristles are best). Trim or tape to <1” nap.
Roller: use good quality 1/8” nap.
To avoid sagging on vertical surfaces the maximum wet film thickness should be between 200 μm-250 μm (8-10 mil) per coat.
| 16°C (60°F) | 25°C (77°F) | 32°C (90°F) | |
|---|---|---|---|
| Tack Free | 4 hours | 2 hours | 1 hours |
| Light Load | 12 hours | 6 hours | 3 hours |
| Overcoat End | 16 hours | 10 hours | 5 hours |
| Full Load | 24 hours | 12 hours | 6 hours |
| Full Chemical | 48 hours | 24 hours | 12 hours |
Clean Up
Tools must be immediately cleaned after usage by using industrial alkaline detergent.
Safety
Before using any products, review the appropriate Safety Data Sheet (SDS) or Safety Sheet for your area. Follow standard confined space entry and work procedures, if appropriate.