SmartEPD-2026-123-0791-01.1Stonproof CT5Date of IssueMar 23, 2026Expiration DateMar 23, 2031Last UpdatedMar 25, 2026Refer to the EPD Library at www.smartepd.com for the latest EPD listing informationEnvironmental ProductDeclarationProgram Operator: Smart EPD®www.smartepd.comIN ACCORDANCE WITH ISO 14025 AND EN15804+A2:2019/AC:2021
General InformationStonhard1000 E. Park Ave., Maple Shade, NJ 080521-800-257-7953ctrageser@stonhard.comstonhard.comProduct Name:Stonproof CT5Declared Unit:1 kg of resinous floor coatingDeclaration Number:SmartEPD-2026-123-0791-01.1Date of Issue:March 23, 2026Expiration:March 23, 2031Last updated:March 25, 2026EPD Scope:Cradle to gate with other optionsA1 - A3, A4, A5, C1 - C4, DMarket(s) of Applicability:EuropeGeneral Organization InformationStonhard is the unprecedented leader in manufacturing and installing high performance floors. Our seamless, long lasting, easy to clean systems areengineered for both industrial and commercial markets. We also bring the same performance to our wall and lining systems. Joining form and function, ourfloors are the dependable go-to choice for tough manufacturing environments, while still honoring innovative design for commercial environments. Epoxy,urethane and fast-track methyl methacrylate resin-based systems deliver a broad range of options for every market and application. Stonhard manufacturesand installs products throughout the world with headquarters in Maple Shade, New Jersey. Stonhard is an ISO-9001 registered company.Further information can be found at:https://www.stonhard.co.uk/Limitations, Liability and OwnershipEnvironmental declarations from different programs (ISO 14025) may not be comparable. Comparison of the environmental performance of products usingEPD information shall be based on the product’s use and impacts at the building level, and therefore EPDs may not be used for comparability purposes whennot considering the whole building life cycle. EPD comparability is only possible when all stages of a life cycle have been considered. However, variations anddeviations are possible. Example of variations: Different LCA software and background LCI datasets may lead to differences results for upstream ordownstream of the life cycle stages declared. The EPD owner has sole ownership, liability, and responsibility for the EPD.Reference StandardsStandard(s):ISO 14025 and EN 15804+A2:2019/AC:2021Core PCR:EPD International PCR for Construction Products 2019:14 (EN 15804:A2:2019/AC:2021)v2.0.1Date of issue: June 05, 2025Stonproof CT5StonhardPage 2 / 13
Valid until: April 07, 2030Sub-category PCR review panel:Contact Smart EPD for more information.General Program Instructions:Smart EPD General Program Instructions v.2.0, March 2025Verification InformationLCA Author/Creator:Samuel Fafelsamuel@parqhq.comEPD Program Operator:Smart EPDinfo@smartepd.comwww.smartepd.com585 Grove St., Ste. 145, Herndon, VA 20170, USAVerification:Independent critical review of the LCA and data, according to ISO 14044 andISO 14071:ExternalAmy LandisMichigan Technological Universitylandis@mtu.eduIndependent external verification of EPD, according to ISO 14025 andreference PCR(s):ExternalAmy LandisMichigan Technological Universitylandis@mtu.eduProduct InformationDeclared Unit:1 kg of resinous floor coatingMass:1 kgReference Service Life:5 YearsProduct Specificity:Product AverageProduct SpecificProduct DescriptionStonproof CT5 is a two-component, flexibie, epoxy membrane designed exclusively for use in the isolation of dynamic cracks. Stonproof CT5 is compatible with most floor systems and exhibits excellent adhesion and hardness to handle heavy traffic areas.Further information can be found at:https://www.stonhard.com/products/complementary/resin-floor-sealants-and-membranes/Product SpecificationsProduct Classification Codes:EC3 - Finishes -> Flooring -> OtherFlooringStonproof CT5StonhardPage 3 / 13
Table 1. Material CompositionMaterial/Component CategoryOrigin% MassAdditive< 10Curing agent12 - 19Epoxy resin46 - 69Pigment11 - 16Plasticizer< 10Rehoelogy modifier< 10Wetting agent< 10Packaging MaterialOriginkg MassAluminium foil0.01Cardboard0.03Plastic ldpe0.03Supersack0.1Biogenic Carbon Contentkg C per kgBiogenic carbon content in product0NoneBiogenic carbon content in accompanyingpackaging0.01Hazardous Materials4-tert-Butylphenol (98-54-4)benzene-1,3-dimethanamine (1477-55-0)2,2,4-trimethylhexane-1,6-diamine (25513-64-8)N-(3-(trimethoxysilyl)propyl)ethylenediamine (1760-24-3)n,n'-bis[3-(trimethoxysilyl)propyl]ethylenediamine (68845-16-9)n,n-bis[3-(trimethoxysilyl)propyl]-1,2-ethanediamine (74956-86-8)Reaction product: bisphenol-A-(epichlorhydrin) epoxy resin (number average molecular weight $\le 700$)(25068-38-6)Polypropyleneglycol-epichlorohydrin copolymer (9072-62-2)Stonproof CT5StonhardPage 4 / 13
Hazardous Materials2,3-epoxypropyl o-tolyl ether (2210-79-9)titanium dioxide (13463-67-7)bis[4-(2,3-epoxypropoxy)phenyl]propane (1675-54-3)oxydipropyl dibenzoate (27138-31-4)Solvent naphtha (petroleum), light arom. (64742-95-6)EPD Data SpecificityPrimary Data Year:2023-2024Manufacturing Specificity:Industry AverageManufacturer AverageFacility SpecificAveraging:Averaging was not conducted for this EPDTable 2. System BoundaryProductionA1Raw material supplyA2TransportA3ManufacturingConstructionA4Transport to siteA5Assembly / InstallUseB1UseNDB2MaintenanceNDB3RepairNDB4ReplacementNDB5RefurbishmentNDB6Operational Energy UseNDB7Operational Water UseNDStonproof CT5StonhardPage 5 / 13
End of LifeC1DeconstructionC2TransportC3Waste ProcessingC4DisposalBenefits & Loads BeyondSystem BoundaryDRecycling, Reuse Recovery PotentialNote:ND = Module not declaredPlantsAlghero, ItalyAlghero, ItalyStonproof CT5StonhardPage 6 / 13
Product Flow DiagramSoftware And DatabaseLCA Software:SimaPro v. 10.2LCI Foreground Database(s):Ecoinvent v. 3.11Cut-off by ClassificationLCI Background Database(s):Ecoinvent v. 3.11Cut-off by ClassificationA foreground LCI database is the database used to model the primary, site-specific data collected for this EPD. A background LCI database is the databaseused to model generic or non-specific data.Data QualityThe quality of inventory data is evaluated based on several criteria, including precision, completeness, consistency, and representativeness.Stonproof CT5StonhardPage 7 / 13
Precision and completeness:Precision: The inventory data used in this study were either directly measured, calculated, or estimated based on primary data sources, ensuring highprecision. Background data from ecoinvent v3 database also has documented precision to the extent available.Completeness: The product system's mass balance and inventory completeness were thoroughly checked. Some exclusions were made in line with thePCR requirements, such as personnel impacts, R&D activities, business travel, secondary packaging, point of sale infrastructure, and the coatingapplicator. However, no data was intentionally omitted.Consistency and reproducibility:Consistency: Primary data were collected with a similar level of detail, while background data primarily came from the ecoinvent database, with otherdatabases used only if necessary or more representative. The modeling approach and other methodological choices were applied consistentlythroughout the model.Reproducibility: This study ensures reproducibility by providing comprehensive disclosure of input-output data, dataset choices, and modelingapproaches. A knowledgeable third party should be able to approximate the results using the same data and modeling methods.Representativeness:Temporal: Primary data were collected for a 12 month period starting on June 2023 and ending on May 2024 to ensure the representativeness of post-consumer content. Secondary data from the ecoinvent v3 database is typically representative of recent years.Geographical: Primary data represent Stonhard's production facility in Alghero, Italy. The use of country-specific data ensures high geographicalrepresentativeness, and proxy data were only used when country-specific data were unavailable..Technological: Both primary and secondary data were tailored to the specific technologies studied, ensuring high technological representativeness.Table 3. Data SourcesProcessSource typeSourceReference yearData categoryShare of primary data,of GWP-GHG resultsfor A1-A3Raw MaterialsBill of MaterialsStonhard2024Primary100%Life Cycle Module DescriptionPrimary data were collected for a 12-month period from June 2023 and ending on May 2024 to ensure technical, geographical, and temporalrepresentativeness. The manufacturing process starts with the reception of raw materials, typically in the form of chemical packages (cans, supersacks,bags, pails, among others). Next, the raw materials are mixed to forms resins and additives. After this step, the products are packaged and distributed tovarious distribution centers. Non-hazardous waste, consisting mainly of packaging waste materials, is sent for disposal, incineration, and/or recycling.Hazardous waste consisting of manufacturing & product losses and their disposal are modeled according to the PCR descriptions (solvent-based coatingsare incinerated for energy recovery and water-based coatings are sent to landfill)LCA DiscussionAllocation ProcedureAllocation of co-products was avoided, to the extent it was possible, based on the guidance given in ISO 14044:2006, and EN 15804 +A2. Energy use andVOC emissions at the factory were allocated by mass. Overhead burdens (building heating and corporate use consumption) were excluded using a squarefootage factor, that benchmarked and validated with process engineering models of resinous floor coatings production. The process does not consumeStonproof CT5StonhardPage 8 / 13
process water or generate wastewater. Solid waste was estimated using packaging masses and material losses and allocated following the polluter paysprinciple.Cut-off ProcedureThe system boundary was defined based on relevance to the goal of the study. For the raw material (A1) and process related inputs (A3), all availableenergy and material flow data have been included in the model. Exclusions allowed by the PCR such as secondary and tertiary packaging, wereimplemented, as well as overhead burdens such as building heating and corporate office consumption.Renewable ElectricityEnergy Attribute Certificates (EACs) such asRenewable Energy Certificates (RECs) or PowerPurchase Agreements (PPAs) are included in thebaseline reported results:NoScenariosTransport to the building/construction site (A4)A4 ModuleFuel Type:DieselVehicle Type:Truck and TrailerTransport Distance:1442 kmCapacity Utilization:33 %Packaging Mass:0.17 kgWeight of products transported:1.17 kgCapacity utilization volume factor:1Assumptions for scenario development:Transport distance includes finished product to distribution center and distribution center to pointof sale.Installation in to the building/construction site (A5)A5 ModuleInstallation Scrap Rate Assumed:2 %Product Lost per Declared/Functional Unit:0.02 kgMass of Packaging Waste Specified by Type:0.17 kgBiogenic Carbon Contained in Packaging (kg C):0.01 kgAssumptions for scenario development:End of Life (C1 - C4)C1 - C4 ModulesCollection ProcessCollected with Mixed Construction Waste:1 kgStonproof CT5StonhardPage 9 / 13
RecoveryLandfill:1 kgAssumptions for scenario development:Product is conservatively assumed as sent to an inert landfill at end of life.Reuse, Recovery and / or Recycling Potentials & Relevant Scenario Information (D)D ModuleProcess and Conversion Efficiencies:Product is conservatively assumed as sent to an inert landfill at end of life.ResultsTable 4. Environmental Impact Assessment ResultsEF 3.1per 1 kg of product of resinous floor coating.LCIA results are relative expressions and do not predict impacts on category endpoints, the exceeding of thresholds, safety margins or risks.Impact CategoryMethodIndicatorA1 - A3A4A5C1C2C3C4DGWP-totalEF 3.1ND4.80e+01.90e-11.40e-106.70e-402.90e-3-6.20e-2GWP-biogenicEF 3.1ND-2.50e-14.40e-51.20e-302.20e-704.80e-73.50e-2GWP-fossilEF 3.1ND5.00e+01.90e-11.40e-106.70e-402.90e-3-9.70e-2GWP-lulucEF 3.1ND6.70e-28.80e-51.30e-303.00e-703.20e-7-2.00e-4ODPEF 3.1ND1.80e-72.60e-93.70e-909.00e-1204.10e-11-6.60e-10APEF 3.1ND2.20e-21.80e-35.00e-402.30e-602.50e-5-7.80e-4EP-freshwaterEF 3.1ND1.40e-31.70e-52.80e-507.20e-801.40e-7-3.40e-5EP-marineEF 3.1ND5.20e-34.90e-41.20e-407.50e-701.10e-5-1.20e-4EP-terrestrialEF 3.1ND4.70e-25.40e-31.10e-308.10e-601.20e-4-1.30e-3POCPEF 3.1ND2.20e-21.70e-34.90e-403.30e-603.80e-5-3.80e-4ADP-minerals&metalsEF 3.1ND3.50e-54.50e-77.00e-701.80e-901.10e-9-7.90e-7ADP-fossilEF 3.1ND9.80e+12.60e+02.00e+009.50e-303.70e-2-1.00e+0WDPEF 3.1ND1.70e+01.20e-23.50e-205.00e-508.20e-5-3.50e-2Note:Not all abbreviated indicators listed below may be present in the results above. The inclusion of indicators varies based on PCR requirements.Abbreviations:GWP = Global Warming Potential, 100 years (may also be denoted as GWP-total, GWP-fossil (fossil fuels), GWP-biogenic (biogenic sources), GWP-luluc (land use and land use change)), ODP = Ozone DepletionPotential, AP = Acidification Potential, EP = Eutrophication Potential, SFP = Smog Formation Potential, POCP = Photochemical oxidant creation potential, ADP-Fossil = Abiotic depletion potential for fossil resources,ADP-Minerals&Metals = Abiotic depletion potential for non-fossil resources, WDP = Water deprivation potential, PM = Particular Matter Emissions, IRP = Ionizing radiation, human health, ETP-fw = Eco-toxicity(freshwater), HTP-c = Human toxicity (cancer), HTP-nc = Human toxicity (non-cancer), SQP = Soil quality index.The results of the end-of-life stage (modules C1-C4) should be considered when using the results of the product stage (modules A1-A3).The Environmental Footprint (EF) 3.1 LCIA method uses IPCC Sixth Assessment Report (AR6) characterization factors for the climate change category.Stonproof CT5StonhardPage 10 / 13
Comparisons cannot be made between product-specific or industry average EPDs at the design stage of a project, before a building has been specified.Comparisons may be made between product-specific or industry average EPDs at the time of product purchase when product performance andspecifications have been established and serve as a functional unit for comparison. Environmental impact results shall be converted to a functional unitbasis before any comparison is attempted. Any comparison of EPDs shall be subject to the requirements of ISO 21930 or EN 15804. EPDs are notcomparative assertions and are either not comparable or have limited comparability when they have different system boundaries. EPDs are notcomparative assertions and are either not comparable or have limited comparability when they have different system boundaries, are based on differentproduct category rules or are missing relevant environmental impacts. Such comparison can be inaccurate, and could lead to erroneous selection ofmaterials or products which are higher-impact, at least in some impact categories.Table 5. Resource Use Indicatorper 1 kg of product of resinous floor coating.IndicatorUnitA1 - A3A4A5C1C2C3C4DPEREMJ8.40e+03.20e-21.70e-101.30e-403.10e-4-4.60e-1PERMMJ3.30e-106.70e-300000PERTMJ6.60e+01.50e-21.30e-106.00e-501.70e-4-3.90e-1PENREMJ9.80e+12.60e+02.00e+009.50e-303.70e-2-1.00e+0PENRMMJ00000000PENRTMJ9.40e+12.60e+01.90e+009.40e-303.70e-2-9.50e-1SMkg00000008.70e-3Note:Not all abbreviated indicators listed below may be present in the results above. The inclusion of indicators varies based on PCR requirements.Abbreviations:RPRE or PERE = Renewable primary resources used as energy carrier (fuel), RPRM or PERM = Renewable primary resources with energy content used as material, RPRT or PERT = Total use of renewable primaryresources with energy content, NRPRE or PENRE = Non-renewable primary resources used as an energy carrier (fuel), NRPRM or PENRM = Non-renewable primary resources with energy content used as material,NRPRT or PENRT = Total non-renewable primary resources with energy content, SM = Secondary materials, RSF = Renewable secondary fuels, NRSF = Non-renewable secondary fuels, RE = Recovered energy,ADPF = Abiotic depletion potential, FW = Use of net freshwater resources, VOCs = Volatile Organic Compounds.Table 6. Waste and Output Flow Indicatorsper 1 kg of product of resinous floor coating.IndicatorUnitA1 - A3A4A5C1C2C3C4DHWDkg00000000NHWDkg3.20e-201.50e-10001.00e+00RWDkg7.60e-55.00e-71.50e-602.00e-904.20e-9-9.20e-7CRUkg00000000MFRkg3.00e-204.10e-200000MERkg00000000EEMJ00000000Note:Not all abbreviated indicators listed below may be present in the results above. The inclusion of indicators varies based on PCR requirements.Abbreviations:Stonproof CT5StonhardPage 11 / 13
HWD = Hazardous waste disposed, NHWD = Non-hazardous waste disposed, RWD = Radioactive waste disposed, HLRW = High-level radioactive waste, ILLRW = Intermediate- and low-level radioactive waste,CRU = Components for re-use, MFR or MR = Materials for recycling, MER = Materials for energy recovery, MNER = Materials for incineration, no energy recovery, EE or EEE = Recovered energy exported from theproduct system, EET = Exported thermal energy.Significant data limitations currently exist within the LCI data used to generate waste metrics for Life Cycle Assessments and Environmental Product Declarations. The waste metrics were calculated in a way conformant with the requirements of EN15804, but these values represent rough estimates and are for informational purposes only. As such, no decisions regarding actual cradle-grave waste performance between products should be derived from these reported valuesTable 7. Carbon Emissions and Removalsper 1 kg of product of resinous floor coating.IndicatorUnitA1 - A3A4A5C1C2C3C4DBio Carbon Removal from Productkg CO200000000Bio Carbon Emission from Productkg CO200000000Bio Carbon Removal from Packagingkg CO2-4.42e-20000000Bio Carbon Emission from Packagingkg CO2004.42e-200000Bio Carbon Emission from Waste duringManufacturing (renewable source)kg CO200000000Calcination Carbon Removalkg CO200000000Carbonation Carbon Emissionkg CO200000000Carbon Emission from Waste duringManufacturing (non-renewable source)kg CO200000000Note:Not all abbreviated indicators listed below may be present in the results above. The inclusion of indicators varies based on PCR requirements.Abbreviations:BCRP = Biogenic Carbon Removal from Product, BCEP = Biogenic Carbon Emission from Product, BCRK = Biogenic Carbon Removal from Packaging, BCEK = Biogenic Carbon Emission from Packaging, BCEW =Biogenic Carbon Emission from Combustion of Waste from Renewable Sources Used in Production Processes, CCE = Calcination Carbon Emissions, CCR = Carbonation Carbon Removals, CWNR = Carbon Emissionsfrom Combustion of Waste from Non-Renewable Sources used in Production Processes, GWP-luc = Carbon Emissions from Land-use Change.InterpretationRaw materials are sourced from suppliers, transported to manufacturing facilities, and mixed to produce products. The product stage (A1-A3) has thehighest environmental impact, especially due to raw material production and energy use. End-of-life impacts are relatively low, as products are assumed tobe landfilled with building demolition waste. However, this stage (modules C1-C4) should be considered when using the results of the product stage(modules A1-A3). The manufacturer should explore lower-impact raw materials and work with suppliers using sustainable methods to enhance productsustainability.0%20%40%60%80%100%GWP-TotalEF 3.1GWP-BiogenicEF 3.1GWP-FossilEF 3.1GWP-LulucEF 3.1ODPEF 3.1Stonproof CT5StonhardPage 12 / 13
APEF 3.1EP-FreshwaterEF 3.1EP-MarineEF 3.1EP-TerrestrialEF 3.1POCPEF 3.1ADP-Minerals&MetalsEF 3.1ADP-FossilEF 3.1WDPEF 3.1Production (A1 - A3)Construction (A4 - A5)End of Life (C1 - C4)Additional Environmental InformationNoneReferences**International Organization for Standardization (ISO). (2006).** *ISO 14040:2006 – Environmental management – Life cycle assessment – Principles andframework.* Geneva: ISO. *(Amendment 1:2020; confirmed current 2022)***EN 15804:2012+A2:2019**. Sustainability of construction works. Environmental product declarations. Core rules for the product category of constructionproducts. Brussels: European Committee for Standardization (CEN).**EPD International PCR for Construction Products 2019:14 (EN 15804:A2:2019/AC:2021) v2.0.1****European Committee for Standardization (CEN). (2019).** *EN 15804:2012+A2:2019 – Sustainability of construction works – Environmental productdeclarations – Core rules for the product category of construction products.* Brussels: CEN. *(Including AC:2021)***International Organization for Standardization (ISO). (2006).** *ISO 14025:2006 – Environmental labels and declarations – Type III environmentaldeclarations – Principles and procedures.* Geneva: ISO**PRé Sustainability. (2022).** *SimaPro 9 LCA Software* [Computer software]. Amersfoort, The Netherlands: PRé Sustainability B.V. *(Version 9.5 used forLCA modeling)***ecoinvent Association. (2022).** *ecoinvent data v3.11* [Life Cycle Inventory database]. Zurich, Switzerland: ecoinvent. *(Database version for backgroundLCI data; latest update as of 2022)***Intergovernmental Panel on Climate Change (IPCC). (2021).** *Climate Change 2021: The Physical Science Basis.* Contribution of Working Group I to theSixth Assessment Report of the IPCC [V. Masson-Delmotte et al. (Eds.)]. Cambridge, UK: Cambridge University Press. *(Source of 100-year GWP factors; AR6latest values)***US EPA (2024).** *TRACI Version 2.2 Tool for Reduction and Assessment of Chemicals and Other Environmental Impacts (TRACI)*.[https://www.epa.gov/chemical-research/tool-reduction-and-assessment-chemicals-and-other-environmental-impacts-traci](https://www.epa.gov/chemical-research/tool-reduction-and-assessment-chemicals-and-other-environmental-impacts-traci?utm_source=chatgpt.com)**Andreasi Bassi, S., Biganzoli, F., Ferrara, N., Amadei, A., Valente, A., Sala, S., & Ardente, F. (2023).** *Updated characterisation and normalisation factors forthe Environmental Footprint 3.1 method.* Luxembourg: Publications Office of the European Union. *(JRC Technical Report EUR 31414; details of EF 3.1method and factors)*Stonproof CT5StonhardPage 13 / 13
