ESR Membrane

Declaration details

Manufacturer

Key Resin Company

Program operator

Smart EPD

Declaration number

SmartEPD-2026-096-1045-01

Date of issue

August 25, 2026

Valid until

August 25, 2031

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

Facility Specific

Manufacturing plant

Key Resin, Batavia, OH (4050 Clough Woods Drive, Batavia, OH 45103, USA)

Product category

Finishes › Flooring › OtherFlooring

Product SKU

ESR Membrane

Product service life

10 years

Verifier

Mari Kirss

LCA software

SimaPro 10.2

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

Resource Use Indicators

Waste and Output Flow Indicators

Carbon Emissions and Removals

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

Hazardous substances

Epoxidated acrylic copolymer (51541-08-3)

Calcium Carbonate (Limestone) (1317-65-3)

Amorphous silica (7631-86-9)

Benzyl alcohol (100-51-6)

Petroleum naphtha, heavy alkylate (64741-65-7)

Glycerine (56-81-5)

1,2,4-Trimethylbenzene (95-63-6)

Poly(oxypropylene) diamine (9046-10-0)

Tris(dimethylaminomethyl)phenol (90-72-2)

Methyl isobutyl ketone (108-10-1)

2-Methyl-1,5-pentanediamine (15520-10-2)

4-tert-Butylphenol (98-54-4)

m-Xylenediamine (1477-55-0)

Scenarios

Transport to the building site (A4)

Fuel type

Diesel

Vehicle type

Truck and Trailer

Transport distance

1.60e+03

Capacity utilization

33%

Weight of products transported

1.49e+00

Packaging mass

3.15e-01

End of life (C1-C4)

Collected separately

1.41e-01

Collected with mixed construction waste

6.97e+00

Landfill

6.97e+00

Incineration

1.41e-01

Benefits and loads beyond the system boundary (D)

Net energy benefit from energy recovery in C3, declared as exported energy

2.58e+00

Product description

KEY ESR Membrane is an ultra-high solid, flexible urethane-modified non-BPA based epoxide crack isolation membrane. It can be used under various Key Resin ESR Flooring Systems that have no restricted materials in the Living Building Challenge (LBC) Red List. KEY ESR Membrane resists cracking caused by horizontal substrate movement, providing a crack resistant, resilient, sound absorbent, waterproof, durable floor.

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 replacemnt of the full coating sytem. 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.