Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Advantages
- Dimensional Stability During Cure: NI-21 has very little shrinkage and can be used for accurate reproduction. No volatile loss or reaction during cure of product
- High Solvent Resistance: High chemical resistance.
- Chemical Inertness: Accepts a wide range of fillers and pigments.
- Hardness: It has great toughness and shock resistance.
- High Gloss
- Adhesion: The tenacity of epoxy adhesion to almost any surface is without equal among organic coatings.
- Whenever a bacteria free environment is a must, NI-21 Pigmented Epoxy is your floor coating. NI-21 Pigmented Epoxy, can be a finish coat for a bathroom application, provides a durable, low maintenance and chemical resistant Seamless Floor that is ideal for bathrooms, commercial kitchens, shop floors, garages, equipment rooms, ect. NI-21 Epoxy will contain water or any spills until they can be wiped clean.
- For a more decorative appearance, NI-Dura Vinyl Chips could be broadcasted into the NI-21.
Materials needed
- Hydro-Seal 75 Pigmented (prime coat)
- NI-21 Pigmented Epoxy (finish coat)
- Features
- Fungus & Bacteria - Will not support growth of fungus or bacteria
- Toxicity - Non-toxic
- Elevated Temperature - No slip or flow
Applications & Uses
- Markets
- Applications
- Application Area
- Compatible Substrates & Surfaces
- Typical Uses
- Flooring: Commercial, Industrial and Residential
- Seamless Flooring
- Concrete Floor Coating - Dust - proofing
- Chemical Containment Coating
- Seamless Fiberglass Roof and Deck System
- River-stone mortars
- Application
- Tools - will vary due to the job - basic tools range from straight edge or notch trowel to rollers and squeegees depending how much material is to be applied.
- Mixing: NI-21 is mixed at a ratio of two parts resin to one part curing agent by volume. Mix thoroughly for 3 minutes. Pour entire contents of mixed material on application area for extended working life. Work time is approximately 15-20 minutes but may vary with temperature changes. Mix only the amount of material that can be applied in the allotted amount of time.
- Procedure
- Work out of tray.
- Roll or trowel material to desired thickness. A notch trowel will apply the most material and a vinyl squeegee will give the smallest build.
Properties
- Typical Properties
- Characteristics of Coating Film
| Value | Units | Test Method / Conditions | |
| Density (Mixed NI-21, 77°F) | 7.9 | Lb./gal. | — |
| Viscosity (Mixed NI-21, 77°F) | 780 - 600 | — | — |
| Gel time (Mixed NI-21, 77°F) | 25.0 | minutes | — |
| Thin film set time (Mixed NI-21, 77°F) | 4.5 | hours | — |
| Color (Alpha, NI-21 Resin) | 125.0 | — | ASTM D-1209 |
| Flash Point (NI-21 Resin) | 485.0 | °F | PENSKY-MARTENS ASTM D-93 |
| Specific Gravity (25°C, NI-21 Resin) | 1.16 | — | — |
| Weight (25°C, NI-21 Resin) | 9.7 | lbs./gal | — |
| Value | Units | Test Method / Conditions | |
| Flammability | Self extinguishing | — | ASTM D-635 |
| Hardness | 85.0 | Shore D | ASTM D-2240 |
| Compressive Strength | 17500.0 | PSI | ASTM D-695 |
| Tensile Strength | 4000.0 | PSI | ASTM D-638 |
| Flexural Strength | 6250.0 | PSI | ASTM D-790 |
| Thermal Coefficient of Expansion | 20 x10⁻⁶ | — | ASTM C-531 (IN/IN OF) |
| Abrasion Resistance (Loss) | 24.0 | mg | Taber Abrader CS-17 Wheel 2,000 gm. Load, 1000 Cycles |
| Indentation (30 minutes Without Indentation) | 2000.0 | lbs. Per. Sq. inch | Mil D-3134 |
| Bond Strength to Concrete (100% concrete failure) | 350.0 | PSI | ACI 403 |
| Thermal Shock | Passes | — | ASTM C-884 |
| Tensile Elongation | 7.5 | % | D-638 |
| Water Absorption | 0.1 | % | D-570 |
Technical Details & Test Data
- Chemical Resistance Immersion Test
Testing Procedure
Testing was carried out on disks 1.75" in diameter and an approximate 0.2" thick unless, otherwise noted. D indicates that specimen partially disintegrated.
- Values: are rounded to the first decimal place; thus o indicates weight change within the limits + 0.049%. Unless preceded by a minus sign, figures indicate a weight gain. Weight losses indicate leaching which also occurs somewhat in all immersion testing simultaneous with absorption
- Concentration of 50 (phr): Parts by weight of curing agent per 100 parts by weight of epoxy resin. All curing agents were used with a conventional liquid, undiluted Bisphenol A epoxy resin, Epoxide Equivalent Weight 185-192
- Cure Schedule: 7 days @ 73°F
Reagent WT Change after 3 week immersion @ 73° F.
Xylene - Toluene 6.5 1,1,1, Trichloroethane 0.2 Synthetic Gasohol - M.E.K. D Ethylene Glycol Monodethyl Ether 12.8 Ethyl Alcohol 4.6 Methyl Alcohol 14.8 Skydrol - Water (distilled) 0.6 5% Detergent solution 0.8 10% Sodium Hydroxide 0.4 50% Sodium Hydroxide -0.1 10% Sulfuric Acid 1.5 70% Sulfuric Acid 0.4 10% Hydrochloric Acid 0.8 20% Nitric Acid 1.5 10% Acetic Acid 6.7
Safety & Health
- Warning
- Harmful if taken internally. Keep out of reach of children. Not intended for repackaging or retail sales. For industrial use only.
- Could cause skin irritation. If skin contact does occur, wash with soap and plenty of water.
- Protective clothing and goggles should be worn to protect against skin and eye contact. Employ proper ventilation. If skin contact does occur, wash with soap and plenty of water.
- Employ proper ventilation.
Packaging & Availability
- Packaging Type
- Standard Colors
Ni-21 Gray (Top), Ni-21 White (Left), Ni-21 Beige (Right)
Available Colors
- Clear, Light Gray, Medium Gray, white
- White can be pigmented to pastel colors
- Packaging
- NI-21 liquid epoxy resin is a two component system: two parts resin to one part curing agent.
- It is packaged in kit form: 9-gallon kit; 15-gallon kit; 55-gallon drums.
- Epoxy Color Chart
White Sable Gray
Beige Dover Sky Slate
Black Desert Sand Maplewood
Tile Red Ford Blue Ivy
Safety Yellow Safety Orange Hydro-Glass
Storage & Handling
- Storage
- Factory sealed container shelf life is 6 months for the unmixed materials.
- Always rotate inventory using oldest materials first.