Environmental Product Declaration
Key #502 - Epoxy Primer/Low Modulus Binder
Environmental Product Declaration (EPD) for Key #502 - Epoxy Primer/Low Modulus Binder, manufactured by Key Resin Company. Declaration SmartEPD-2025-096-0637-01.1, prepared according to NSF PCR for Resinous Floor Coatings, valid until November 4, 2030.
- Functional unit
- 1 m2 of product of covered and protected flooring surface for a period of 60 years
- Valid until
- November 4, 2030
- PCR
- NSF PCR for Resinous Floor Coatings
Declaration details
- Manufacturer
- Key Resin Company
- Program operator
- Smart EPD
- Declaration number
- SmartEPD-2025-096-0637-01.1
- Date of issue
- November 4, 2025
- Valid until
- November 4, 2030
- Product category rules (PCR)
- NSF PCR for Resinous Floor Coatings (version 1e)
- Standard
- ISO 14025:2006 and ISO 21930:2017
- Functional unit
- 1 m2 of product of covered and protected flooring surface for a period of 60 years
- System boundary
- Cradle to grave (A1 - A3, A4, A5, B1 - B7, C1 - C4, D)
- Product specificity
- Product Specific
- Manufacturing specificity
- Manufacturer Average
- Manufacturing plants
- Key Resin Phoenix (4330 N 43rd Ave, Phoenix, AZ 85031, USA); Key Resin, Batavia, OH (4050 Clough Woods Drive, Batavia, OH 45103, USA)
- Product category
- Finishes › Flooring › OtherFlooring
- Product SKU
- Key #502
- Product service life
- 5 years
- Verifier
- Mari Kirss
- LCA software
- SimaPro 9.5
- Program instructions
- Smart EPD General Program Instructions v.2.0, March 2025
Life cycle assessment results
Results per 1 m2 of product of covered and protected flooring surface for a period of 60 years.
Environmental Impact Assessment Results
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GWP-total | kg CO2-eq | 1.11e+0 | 3.50e-2 | 1.19e-1 | 0 | 6.14e+0 | 0 | 1.39e+1 | 0 | 0 | 0 | 0 | 7.87e-3 | 1.65e-1 | 4.63e-1 | -4.55e-1 |
| ODP | kg CFC-11 eq | 8.24e-6 | 6.01e-10 | 1.65e-7 | 0 | 1.85e-7 | 0 | 9.25e-5 | 0 | 0 | 0 | 0 | 1.35e-10 | 1.13e-9 | 1.27e-8 | -9.36e-9 |
| AP | kg SO2 eq | 4.11e-3 | 1.12e-4 | 1.05e-4 | 0 | 2.34e-2 | 0 | 4.76e-2 | 0 | 0 | 0 | 0 | 2.51e-5 | 1.08e-4 | 1.60e-3 | -1.54e-3 |
| EP | kg N eq | 4.24e-3 | 3.09e-5 | 1.08e-4 | 0 | 2.87e-2 | 0 | 4.81e-2 | 0 | 0 | 0 | 0 | 6.93e-6 | 7.00e-5 | 1.60e-3 | -1.41e-3 |
| POCP | kg O3 eq | 5.57e-2 | 2.56e-3 | 1.79e-3 | 0 | 3.24e-1 | 0 | 6.61e-1 | 0 | 0 | 0 | 0 | 5.75e-4 | 1.42e-3 | 2.60e-2 | -2.45e-2 |
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GWP-total | kg CO2-eq | 1.11e+0 | 3.50e-2 | 1.19e-1 | 0 | 6.14e+0 | 0 | 1.39e+1 | 0 | 0 | 0 | 0 | 7.87e-3 | 1.65e-1 | 4.63e-1 | -4.55e-1 |
| ODP | kg CFC-11 eq | 8.24e-6 | 6.01e-10 | 1.65e-7 | 0 | 1.85e-7 | 0 | 9.25e-5 | 0 | 0 | 0 | 0 | 1.35e-10 | 1.13e-9 | 1.27e-8 | -9.36e-9 |
| AP | kg SO2 eq | 4.11e-3 | 1.12e-4 | 1.05e-4 | 0 | 2.34e-2 | 0 | 4.76e-2 | 0 | 0 | 0 | 0 | 2.51e-5 | 1.08e-4 | 1.60e-3 | -1.54e-3 |
| EP | kg N eq | 4.24e-3 | 3.09e-5 | 1.08e-4 | 0 | 2.87e-2 | 0 | 4.81e-2 | 0 | 0 | 0 | 0 | 6.93e-6 | 7.00e-5 | 1.60e-3 | -1.41e-3 |
| POCP | kg O3 eq | 5.57e-2 | 2.56e-3 | 1.79e-3 | 0 | 3.24e-1 | 0 | 6.61e-1 | 0 | 0 | 0 | 0 | 5.75e-4 | 1.42e-3 | 2.60e-2 | -2.45e-2 |
Resource Use Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RPRE | MJ | 8.48e-1 | 6.45e-3 | 1.78e-2 | 0 | 5.33e+1 | 0 | 9.59e+0 | 0 | 0 | 0 | 0 | 1.45e-3 | 4.35e-3 | 1.81e+0 | -3.59e-1 |
| RPRM | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RPRT | MJ | 8.48e-1 | 6.45e-3 | 1.78e-2 | 0 | 5.33e+1 | 0 | 9.59e+0 | 0 | 0 | 0 | 0 | 1.45e-3 | 4.35e-3 | 1.81e+0 | -3.59e-1 |
| NRPRE | MJ | 1.65e+1 | 5.09e-1 | 3.60e-1 | 0 | 8.81e+1 | 0 | 1.91e+2 | 0 | 0 | 0 | 0 | 1.14e-1 | 7.40e-1 | 5.17e+0 | -5.44e+0 |
| NRPRM | MJ | 4.25e+0 | 0 | 8.50e-2 | 0 | 0 | 0 | 4.77e+1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -2.62e-1 |
| NRPRT | MJ | 2.50e+1 | 5.09e-1 | 5.30e-1 | 0 | 8.81e+1 | 0 | 2.87e+2 | 0 | 0 | 0 | 0 | 1.14e-1 | 7.40e-1 | 5.17e+0 | -5.96e+0 |
| ADPF | MJ | 2.51e+0 | 7.15e-2 | 5.40e-2 | 0 | 1.03e+1 | 0 | 2.90e+1 | 0 | 0 | 0 | 0 | 1.60e-2 | 1.10e-1 | 3.18e-1 | -4.72e-1 |
| FW | m3 | 1.41e-2 | 6.65e-5 | 4.22e-4 | 0 | 1.07e+0 | 0 | 1.61e-1 | 0 | 0 | 0 | 0 | 1.49e-5 | 7.32e-5 | 2.23e-3 | -1.90e-3 |
| RE | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NRSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SM | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RPRE | MJ | 8.48e-1 | 6.45e-3 | 1.78e-2 | 0 | 5.33e+1 | 0 | 9.59e+0 | 0 | 0 | 0 | 0 | 1.45e-3 | 4.35e-3 | 1.81e+0 | -3.59e-1 |
| RPRM | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RPRT | MJ | 8.48e-1 | 6.45e-3 | 1.78e-2 | 0 | 5.33e+1 | 0 | 9.59e+0 | 0 | 0 | 0 | 0 | 1.45e-3 | 4.35e-3 | 1.81e+0 | -3.59e-1 |
| NRPRE | MJ | 1.65e+1 | 5.09e-1 | 3.60e-1 | 0 | 8.81e+1 | 0 | 1.91e+2 | 0 | 0 | 0 | 0 | 1.14e-1 | 7.40e-1 | 5.17e+0 | -5.44e+0 |
| NRPRM | MJ | 4.25e+0 | 0 | 8.50e-2 | 0 | 0 | 0 | 4.77e+1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -2.62e-1 |
| NRPRT | MJ | 2.50e+1 | 5.09e-1 | 5.30e-1 | 0 | 8.81e+1 | 0 | 2.87e+2 | 0 | 0 | 0 | 0 | 1.14e-1 | 7.40e-1 | 5.17e+0 | -5.96e+0 |
| ADPF | MJ | 2.51e+0 | 7.15e-2 | 5.40e-2 | 0 | 1.03e+1 | 0 | 2.90e+1 | 0 | 0 | 0 | 0 | 1.60e-2 | 1.10e-1 | 3.18e-1 | -4.72e-1 |
| FW | m3 | 1.41e-2 | 6.65e-5 | 4.22e-4 | 0 | 1.07e+0 | 0 | 1.61e-1 | 0 | 0 | 0 | 0 | 1.49e-5 | 7.32e-5 | 2.23e-3 | -1.90e-3 |
| RE | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NRSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SM | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Waste and Output Flow Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HWD | kg | 3.36e-4 | 0 | 6.73e-6 | 0 | 0 | 0 | 3.77e-3 | 0 | 0 | 0 | 0 | 0 | 4.56e-2 | 2.28e+0 | 0 |
| NHWD | kg | 8.16e-3 | 0 | 1.03e-2 | 0 | 0 | 0 | 2.03e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MR | kg | 1.07e-2 | 0 | 5.86e-3 | 0 | 0 | 0 | 1.82e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MER | kg | 1.92e-5 | 0 | 1.32e-3 | 0 | 0 | 0 | 1.47e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| ILLRW | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| HLLRW | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CRU | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| EE | MJ | 5.92e-4 | 0 | 4.06e-2 | 0 | 0 | 0 | 4.53e-1 | 0 | 0 | 0 | 0 | 0 | 1.40e+0 | 0 | 0 |
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HWD | kg | 3.36e-4 | 0 | 6.73e-6 | 0 | 0 | 0 | 3.77e-3 | 0 | 0 | 0 | 0 | 0 | 4.56e-2 | 2.28e+0 | 0 |
| NHWD | kg | 8.16e-3 | 0 | 1.03e-2 | 0 | 0 | 0 | 2.03e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MR | kg | 1.07e-2 | 0 | 5.86e-3 | 0 | 0 | 0 | 1.82e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MER | kg | 1.92e-5 | 0 | 1.32e-3 | 0 | 0 | 0 | 1.47e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| ILLRW | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| HLLRW | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CRU | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| EE | MJ | 5.92e-4 | 0 | 4.06e-2 | 0 | 0 | 0 | 4.53e-1 | 0 | 0 | 0 | 0 | 0 | 1.40e+0 | 0 | 0 |
Carbon Emissions and Removals
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bio Carbon Removal from Product | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bio Carbon Emission from Product | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bio Carbon Removal from Packaging | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bio Carbon Emission from Packaging | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bio Carbon Emission from Waste during Manufacturing (renewable source) | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Calcination Carbon Removal | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Carbonation Carbon Emission | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Carbon Emission from Waste during Manufacturing (non-renewable source) | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bio Carbon Removal from Product | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bio Carbon Emission from Product | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bio Carbon Removal from Packaging | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bio Carbon Emission from Packaging | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bio Carbon Emission from Waste during Manufacturing (renewable source) | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Calcination Carbon Removal | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Carbonation Carbon Emission | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Carbon Emission from Waste during Manufacturing (non-renewable source) | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
ND = not declared. Life cycle modules: A1-A3 product stage, A4-A5 construction process, B use stage, C end of life, D benefits and loads beyond the system boundary.
Material composition
| Material/Component Category | Origin | % Mass |
|---|---|---|
| Catalyst | US | < 10 |
| UV absorber | US | < 10 |
| additives | US | < 10 |
| curing agent | US | 20 - 31 |
| diluent | US | 9 - 14 |
| plasticizer | US | < 10 |
| resin | US | 45 - 67 |
| Packaging material | Origin | Mass (kg) |
|---|---|---|
| Plastic pail product | 0.01 | |
| Steel pail packaging | 0.01 |
| Biogenic carbon content | kg C per m2 |
|---|---|
| Biogenic carbon content in product | 0 |
| Biogenic carbon content in accompanying packaging | 0 |
Hazardous substances
4-Nonylphenol (84852-15-3)
Benzyl alcohol (100-51-6)
Bisphenol A (80-05-7)
Bisphenol A Polyglycidyl Ether Resin (25068-38-6)
Butyl acetate (123-86-4)
Diethylenetriamine (111-40-0)
Nonylphenol (25154-52-3)
Petroleum distillates (64742-47-8)
Tetraethylene pentamine (112-57-2)
Tris(dimethylaminomethyl)phenol (90-72-2)
Scenarios
End of life (C1-C4)
- Collected separately
- 0.0456 kg
- Collected with mixed construction waste
- 0.1862 kg
- Landfill
- 0.19 kg
Product description
KEY #502 is a 100% solids epoxy primer for concrete, wood, and masonry surfaces. Combining tolerance with damp surfaces and good wetting properties, KEY #502 is the ideal primer for almost every Key Resin Flooring/Coating System. KEY #502 provides excellent filling and sealing properties needed under high performance epoxy wall coatings on concrete and cinder block walls. The dampness tolerance of KEY #502 allows it to be applied to damp concrete after surface preparation. This includes use as a repair resin to fill cracks in concrete, or as a bonding adhesive for bonding “old to old” or “new to old” concrete. KEY #502 may also be used as an adhesive for bonding divider strips to the substrate. In addition, the low modulus of elasticity and stress relieving properties of KEY #502 makes it ideal for use as a binder resin for epoxy mortar patching and grouting applications.
Interpretation
Raw materials are sourced from suppliers, transported to manufacturing facilities, and mixed to produce products. The product stage (A1-A3) drives the environmental impact, due to raw material production and energy use. This impacts is amplified in the use phase due to recoatings, making B4 the largest contributor to the overall impact. Market and Technical service life scenarios differ depending on assumed estimated service life (ESL), with lower impacts for longer-lived products. Those scenarios are constructed using PCR prescriptions that are highly conservative, as they assumed the replacement of the full coating system. End-of-life impacts are relatively low, as products are assumed to be landfilled with building demolition waste. Switching to renewable energy is advised for products with high manufacturing energy demands. The manufacturer should explore lower-impact raw materials and work with suppliers using sustainable methods or renewable energy to enhance product sustainability.
LCIA results are relative expressions and do not predict impacts on category endpoints, the exceeding of thresholds, safety margins or risks. EPDs are comparable only when they follow the same PCR, functional unit and system boundary. The full EPD (PDF) contains the methodology, scenario assumptions and verification statement.