63.0
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Safety data sheet according to UK REACH Printing date 17.06.2026 *
Version number 18 (replaces version 17)
Revision: 16.06.2026
SECTION 1: Identification of the substance/mixture and of the company/undertaking · 1.1 Product identifier · Trade name: AQUAFIN-F · UFI: MHN7-0K5D-T00G-UKWA · 1.2 Relevant identified uses of the substance or mixture and uses advised against · Sector of Use SU19 Building and construction work · Application of the substance / the mixture Sealant · 1.3 Details of the supplier of the safety data sheet · Manufacturer/Supplier: SCHOMBURG GmbH & Co. KG Aquafinstr. 2-8 D-32760 Detmold Germany Phone: +49 5231 953 00 E-mail: info@schomburg.de Website: www.schomburg.de · Informing department: Environment and Safety Department SCHOMBURG GmbH & Co. KG E-mail: SDB@schomburg.de · 1.4 Emergency telephone number: Members of the public seeking specific information on poisons should contact: In England and Wales: NHS 111 - dial 111 (24h) In Scotland: NHS 24 - dial 111
*
SECTION 2: Hazards identification · 2.1 Classification of the substance or mixture · Classification according to Regulation (EC) No 1272/2008 GHS05 corrosion Skin Corr. 1A H314 Causes severe skin burns and eye damage. Eye Dam. 1 H318 Causes serious eye damage. · 2.2 Label elements · Labelling according to Regulation (EC) No 1272/2008 The product is classified and labelled according to the GB CLP regulation. · Hazard pictograms GHS05 · Signal word Danger · Hazard-determining components of labelling: Kaliummethylsiliconat potassium hydroxide · Hazard statements H314 Causes severe skin burns and eye damage. · Precautionary statements P260 Do not breathe dusts or mists. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection. (Contd. on page 2) GB
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Safety data sheet according to UK REACH Printing date 17.06.2026
Trade name: AQUAFIN-F (Contd. of page 1)
P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower]. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P405 Store locked up. P501 Dispose of contents/container in accordance with local/regional/national/ international regulations. · 2.3 Other hazards not applicable · Results of PBT and vPvB assessment · PBT: Not applicable · vPvB: Not applicable · Determination of endocrine-disrupting properties Not applicable SECTION 3: Composition/information on ingredients · 3.2 Mixtures · Description: Aqueous alkalisilicat solution · Dangerous components: CAS: 1312-76-1
CAS: 31795-24-1
potassium silicate Skin Irrit. 2, H315; Eye Irrit. 2, H319 Specific concentration limits: Skin Irrit. 2; H315: C ≥ 40 % Eye Irrit. 2; H319: C ≥ 40 %
10-25%
Kaliummethylsiliconat Skin Corr. 1A, H314
2.5-25%
CAS: 1310-58-3 potassium hydroxide 2.5-10% EINECS: 215-181-3 Met. Corr.1, H290; Skin Corr. 1A, H314; Acute Tox. 4, Index number: 019-002-00-8 H302 Specific concentration limits: Skin Corr. 1A; H314: C ≥ 5 % Skin Corr. 1B; H314: 2 % ≤ C < 5% Skin Irrit. 2; H315: 0.5 % ≤ C < 2 % Eye Irrit. 2; H319: 0.5 % ≤ C < 2 % · Additional information For the wording of the listed hazard phrases refer to section 16. *
SECTION 4: First aid measures · 4.1 Description of first aid measures · General information Instantly remove any clothing soiled by the product. Symptoms of poisoning may even occur after several hours; therefore medical observation for at least 48 hours after the accident. Personal protection for the First Aider. It is possible to choke in case of vomiting in unconsciousness. Bring unconscious persons into a stable position on side. Keep the respiratory tract free (remove dentures and vomiting). Check the pulse. In case of heart failure you have to make a cardiac massage. In case of stoppage of breathing: artificial respiration. Take up a doctor immediately! · After inhalation Supply fresh air or oxygen; call for doctor. · After skin contact Do not use thinners/solvents or similar. Change immediately contaminated clothes. Instantly wash with water and soap and rinse thoroughly. (Contd. on page 3) GB
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Trade name: AQUAFIN-F (Contd. of page 2)
Don't use solvents to clean the skin. · After eye contact Gently rinse the eyes under running water for at least 10 minutes with the eyelids open. If possible, remove any contact lenses and continue rinsing. Consult a doctor. · After swallowing Show the packaging or the label to the doctor. Drink copious amounts of water. Avert vomiting. Instantly call for doctor. · 4.2 Most important symptoms and effects, both acute and delayed No further relevant information available. · 4.3 Indication of any immediate medical attention and special treatment needed No further relevant information available. SECTION 5: Firefighting measures · 5.1 Extinguishing media · Suitable extinguishing agents CO2, extinguishing powder or water jet. Fight larger fires with water jet or alcohol-resistant foam. Use fire fighting measures that suit the environment. · 5.2 Special hazards arising from the substance or mixture Formation of poisonous gases during heating or in fires. · 5.3 Advice for firefighters · Protective equipment: Wear self-contained breathing apparatus. · Additional information Dispose of fire debris and contaminated fire fighting water in accordance with official regulations. Product is inflammable during water-component is existing. Follow the emergency-plan. Burst- and explosion-danger by increasing pressure. In case of fire chill the container with water spray. *
SECTION 6: Accidental release measures · 6.1 Personal precautions, protective equipment and emergency procedures Avoid eye- and skin contact. Wear protective equipment. Keep unprotected persons away. Bring persons out of danger. Wear protective clothing. · 6.2 Environmental precautions: Do not allow product to reach sewage system or water bodies. Inform respective authorities in case product reaches water or sewage system. · 6.3 Methods and material for containment and cleaning up: Use neutralising agent. Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust). Ensure adequate ventilation. · 6.4 Reference to other sections See Section 7 for information on safe handling See Section 8 for information on personal protection equipment. See Section 13 for information on disposal.
SECTION 7: Handling and storage · 7.1 Precautions for safe handling Keep away from heat and direct sunlight. Ensure good ventilation/extraction at the workplace. Prevent formation of aerosols. Keep out of the reach of children For personal protection equipment, see section 8. (Contd. on page 4) GB
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Trade name: AQUAFIN-F (Contd. of page 3)
· Information about protection against explosions and fires: No special measures required. · 7.2 Conditions for safe storage, including any incompatibilities · Storage · Requirements to be met by storerooms and containers: Do not leave open containers. Do not store in common rooms. Store only in the original container. · Information about storage in one common storage facility: Store away from foodstuffs. Please follow the rules of the VCI-Storage-Concept for chemicals. · Further information about storage conditions: Protect from frost. Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Store in a locked cabinet and out of the reach of children. · 7.3 Specific end use(s) No further relevant information available. *
SECTION 8: Exposure controls/personal protection · 8.1 Control parameters · Components with critical values that require monitoring at the workplace: 1310-58-3 potassium hydroxide (2.5-10%) WEL (Great Britain) Short-term value: 2 mg/m³ · Regulatory information WEL (Great Britain): EH40/2020 · Additional information: The lists that were valid during the compilation were used as basis. · 8.2 Exposure controls · Appropriate engineering controls It must be possible to wash the skin in the working area. Eye-wash bottle must be available. · Individual protection measures, such as personal protective equipment · General protective and hygienic measures The usual precautionary measures should be adhered to in handling the chemicals. Keep away from foodstuffs, beverages and food. Instantly remove any soiled and impregnated garments. Avoid contact with the eyes and skin. Do not eat, drink or smoke while working. Use skin protection cream for preventive skin protection. Be sure to clean skin thoroughly after work and before breaks. · Breathing equipment: In case of brief exposure or low pollution use breathing filter apparatus. In case of intensive or longer exposure use breathing apparatus that is independent of circulating air. · Hand protection In case of wearing synthetic protective gloves use cotton-gloves as underwear. The glove material has to be impermeable and resistant to the product/ the substance/ the preparation. Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation · Material of gloves Nitrile rubber, NBR Natural latex, polychloroprene, nitrile rubber Gloves made of: Natural latex, polychloroprene, nitrile rubber. (Chemical protection gloves of category 3, recognisable by the CE mark with four-digit test number). The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and varies from manufacturer to manufacturer. As the product is a preparation of several substances, the resistance of the glove material can not be calculated in advance and has therefore to be checked prior to the application. (Contd. on page 5) GB
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Trade name: AQUAFIN-F (Contd. of page 4)
· Penetration time of glove material The exact break trough time has to be found out by the manufacturer of the protective gloves and has to be observed. · Not suitable are gloves made of the following materials: Leather gloves. Gloves made of thick fabric. · Eye/face protection Suitable safety goggles in accordance with DIN EN 166. · Body protection: Impervious protective clothing Alkaline resistant protective clothing Apron Protective work clothing. · Skin protection Use greasy skin protection ointment for all uncovered parts of the body! *
SECTION 9: Physical and chemical properties · 9.1 Information on basic physical and chemical properties · General Information · Physical state Liquid · Colour: Clear · Smell: Characteristic · Odour threshold: Not determined · Melting point/freezing point: Not determined · Boiling point or initial boiling point and boiling range 100 °C · Flammability Not applicable · Lower and upper explosion limit · Lower: Not determined · Upper: Not determined · Flash point: Not applicable · Decomposition temperature: Not determined · pH at 20 °C 12.5 · Viscosity: · Kinematic viscosity Not determined · dynamic at 20 °C: <100 mPas · Solubility · Water: miscible · Partition coefficient n-octanol/water (log value) Not determined · Steam pressure: Not determined · Density and/or relative density · Density at 20 °C 1.28 g/cm³ · Relative density Not determined · Vapour density Not determined · 9.2 Other information · Appearance: · Form: Fluid · Important information on protection of health and environment, and on safety. · Self-inflammability: Product is not selfigniting. · Explosive properties: Product is not explosive. · Change in condition · Evaporation rate Not determined (Contd. on page 6) GB
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Trade name: AQUAFIN-F (Contd. of page 5)
· Information with regard to physical hazard classes · Explosives · Flammable gases · Aerosols · Oxidising gases · Gases under pressure · Flammable liquids · Flammable solids · Self-reactive substances and mixtures · Pyrophoric liquids · Pyrophoric solids · Self-heating substances and mixtures · Substances and mixtures, which emit flammable gases in contact with water · Oxidising liquids · Oxidising solids · Organic peroxides · Corrosive to metals · Desensitised explosives
Void Void Void Void Void Void Void Void Void Void Void Void Void Void Void Void Void
SECTION 10: Stability and reactivity · 10.1 Reactivity No further relevant information available. · 10.2 Chemical stability · Thermal decomposition / conditions to be avoided: No decomposition if used according to specifications. · 10.3 Possibility of hazardous reactions No dangerous reactions known · 10.4 Conditions to avoid No further relevant information available. · 10.5 Incompatible materials: No further relevant information available. · 10.6 Hazardous decomposition products: No dangerous decomposition products known SECTION 11: Toxicological information · 11.1 Information on hazard classes as defined in Regulation (EC) No 1272/2008 · Acute toxicity Based on available data, the classification criteria are not met. · LD/LC50 values that are relevant for classification: 1312-76-1 potassium silicate Oral LD50 >5,000 mg/kg (rats) (OECD 425) Dermal LD50 >5,000 mg/kg (rats) (vgl. OECD 402) Inhalative LC50/4 h >5 mg/l (rats) (vgl. OECD 403) 1310-58-3 potassium hydroxide Oral LD50 300 mg/kg (rats) · Primary irritant effect: · Skin corrosion/irritation Causes severe skin burns and eye damage. · Serious eye damage/irritation Causes serious eye damage. · 11.2 Information on other hazards · Endocrine disrupting properties None of the ingredients is listed. GB
(Contd. on page 7)
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Trade name: AQUAFIN-F (Contd. of page 6)
SECTION 12: Ecological information · 12.1 Toxicity · Aquatic toxicity: 1310-58-3 potassium hydroxide LC50/96h 80 mg/l (Gambusia affinis) 45.4 mg/l (rainbow trout) EC50 (48h) 40.4 mg/l (water flea (Ceriodaphnia spec) 40 mg/l (acute toxicity (invertebrates)) · 12.2 Persistence and degradability No further relevant information available. · 12.3 Bioaccumulative potential No further relevant information available. · 12.4 Mobility in soil No further relevant information available. · 12.5 Results of PBT and vPvB assessment · PBT: Not applicable · vPvB: Not applicable · 12.6 Endocrine disrupting properties The product does not contain substances with endocrine disrupting properties. · 12.7 Other adverse effects · Additional ecological information: · General notes: Water hazard class 1 (Self-assessment): slightly hazardous for water. Must not reach sewage water or drainage ditch undiluted or unneutralised. SECTION 13: Disposal considerations · 13.1 Waste treatment methods · Recommendation Must not be disposed of together with household garbage. Do not allow product to reach sewage system. · Uncleaned packagings: · Recommendation: Disposal must be made according to official regulations. · Recommended cleaning agent: Water, if necessary with cleaning agent. SECTION 14: Transport information · 14.1 UN number or ID number · ADR, IMDG, IATA · 14.2 UN proper shipping name · ADR · IMDG · IATA
UN1719 1719 CAUSTIC ALKALI LIQUID, N.O.S. (POTASSIUM HYDROXIDE) CAUSTIC ALKALI LIQUID, N.O.S. (POTASSIUM HYDROXIDE), MARINE POLLUTANT CAUSTIC ALKALI LIQUID, N.O.S. (POTASSIUM HYDROXIDE)
· 14.3 Transport hazard class(es) · ADR, IATA
· Class
8 Corrosive substances. (Contd. on page 8) GB
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Trade name: AQUAFIN-F (Contd. of page 7)
· Label
8
· IMDG
· Class · Label
8 Corrosive substances. 8
· 14.4 Packing group · ADR, IMDG, IATA
II
· 14.5 Environmental hazards: · Marine pollutant: · 14.6 Special precautions for user · Kemler Number: · EMS Number: · Segregation groups · Stowage Category · Segregation Code
Yes Symbol (fish and tree) Warning: Corrosive substances. 80 F-A,S-B (SGG18) Alkalis A SG22 Stow "away from" ammonium salts SG35 Stow "separated from" SGG1-acids
· 14.7 Maritime transport in bulk according to IMO instruments Not applicable · Transport/Additional information: · ADR · Limited quantities (LQ) · Excepted quantities (EQ) · Transport category · IMDG · Limited quantities (LQ) · Excepted quantities (EQ)
· UN "Model Regulation":
1L Code: E2 Maximum net quantity per inner packaging: 30 ml Maximum net quantity per outer packaging: 500 ml 2 1L Code: E2 Maximum net quantity per inner packaging: 30 ml Maximum net quantity per outer packaging: 500 ml UN 1719 CAUSTIC ALKALI LIQUID, N.O.S. (POTASSIUM HYDROXIDE), 8, II
SECTION 15: Regulatory information · 15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture · Poisons Act · Regulated explosives precursors None of the ingredients is listed. · Regulated poisons None of the ingredients is listed. · Reportable explosives precursors None of the ingredients is listed. · Reportable poisons 1310-58-3 potassium hydroxide: 17% of total caustic alkalinity (Contd. on page 9) GB
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Trade name: AQUAFIN-F (Contd. of page 8)
· Directive 2012/18/EU · Named dangerous substances - ANNEX I None of the ingredients is listed. · 15.2 Chemical safety assessment: A Chemical Safety Assessment has not been carried out. *
SECTION 16: Other information These data are based on our present knowledge. However, they shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship. · Relevant phrases H290 May be corrosive to metals. H302 Harmful if swallowed. H314 Causes severe skin burns and eye damage. H315 Causes skin irritation. H319 Causes serious eye irritation. · Recommended restriction of use Employment restrictions Adolescents from the age of 15 may only be employed if this is necessary to achieve the training objective and the supervision of an expert as well as company medical or safety supervision is guaranteed. · Department issuing data specification sheet: Environment protection department. · Abbreviations and acronyms: ADR: Accord relatif au transport international des marchandises dangereuses par route (European Agreement Concerning the International Carriage of Dangerous Goods by Road) IMDG: International Maritime Code for Dangerous Goods IATA: International Air Transport Association GHS: Globally Harmonised System of Classification and Labelling of Chemicals EINECS: European Inventory of Existing Commercial Chemical Substances ELINCS: European List of Notified Chemical Substances CAS: Chemical Abstracts Service (division of the American Chemical Society) LC50: Lethal concentration, 50 percent LD50: Lethal dose, 50 percent PBT: Persistent, Bioaccumulative and Toxic vPvB: very Persistent and very Bioaccumulative Met. Corr.1: Corrosive to metals – Category 1 Acute Tox. 4: Acute toxicity – Category 4 Skin Corr. 1A: Skin corrosion/irritation – Category 1A Skin Irrit. 2: Skin corrosion/irritation – Category 2 Eye Dam. 1: Serious eye damage/eye irritation – Category 1 Eye Irrit. 2: Serious eye damage/eye irritation – Category 2
· * Data compared to the previous version altered. GB