Northern Industries NI-21 100% Epoxy
- Chemical Family
- Epoxy & Epoxy Derivatives
Northern Industries NI-21 100% Epoxy is an odorless two component coating designed to resist high wear and harsh chemicals when applied to floors and walls. Its high gloss finish and self-leveling characteristic make it excellent for high build applications. When the two components are combined, a conversion from a liquid epoxy to a thermoset solid occurs. The result is a highly durable finish that is easy to clean.
Other characteristics
- Features
Chemical Resistant, Cleanable, Dimensional Stability, Excellent Solvent Resistance, Excellent Substrate Adhesion, Good Toughness, High Durability, High Gloss, High Hardness, Low Shrinkage, Odorless, Self-Leveling, Shock Resistant, Wear Resistant; Fungus & Bacteria - Will not support growth of fungus or bacteria; Toxicity - Non-toxic; Elevated Temperature - No slip or flow
- Product Type
- 2K (2 component) Coating, Coating, Epoxy Coating
- 2K (2 component) Coating
- Coating
- Epoxy Coating
- Application Area
- Decking, Floor, Roofing Substrates, Wall
- Application Method
- Roller, Trowel, Wipe
- Compatible Substrates & Surfaces
- Concrete, Fiberglass, Stone
- Color
- Beige
- Black
- Blue
- Custom
- Green
- Grey
- Orange
- Red
- Markets
- Building & Construction
- Storage
Factory sealed container shelf life is 6 months for the unmixed materials.; Always rotate inventory using oldest materials first.
- 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
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.
- 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.
- Technology
- Ready-to-Use Products
- 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
- Packaging Type
- Drums
Technical data
Table 1 of 2
8 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| 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 | — |
Table 2 of 2
12 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| 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 |
