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OSI HM270 Construction Silicone Sealant, Clear-08/01/2014
Products in this Consumer Product Information Database (CPID) are classified based on their composition:
Substances: single chemicals
Preparations: products which contain chemicals that can be easily separated during normal use
Articles: products or product assemblies that do not contain chemicals that can be separated out from the product or assembly under normal or advertised use.
Classification: Preparation
Indicates country where product is sold.
Market: US/CanadaOSI HM270 Construction Silicone Sealant is a medium modulus, one-part RTV silicone sealant designed for glazing and sealing. It cures at room temperature upon exposure to moisture in the air providing good tensile strength and excellent adhesion, usually without the use of a primer, to most nonporous building materials. OSI HM270 easily withstands temperature extremes from -60 deg F to 400 deg F without adverse effects. It is highly resistant to ultraviolet light and is virtually unaffected by other harsh environmental elements. OSI HM270 offers superior elasticity and long-life reliability. It forms a permanent watertight and weatherproof bond to materials like glass, ceramics, aluminum, primed steel and some plastics.
Purpose of product.
Usage: Glass and metal sealant.Structure such as solid, liquid, aerosol etc.
Form: pasteDate when validity of Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) was last verified.
Date verified: February 14, 2024One Henkel Way
Rocky Hill CT 06067
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Chemical Composition/Ingredients
The GHS is an acronym for The Globally Harmonized System of Classification and Labelling of Chemicals. The GHS is a system for standardizing and harmonizing the classification and labelling of chemicals. Chemicals are associated with codes that define their health, physical and environmental hazards.This universal hazard communication system was developed to ensure that employers, employees and consumers are provided with adequate, practical, reliable and comprehensible information on the hazards of chemicals, so that they can take effective preventive and protective measure for their own health and safety.
Advanced
The GHS classifications for chemicals associated with products in this database may be viewed by selecting the "Advanced" button on the Chemical Ingredients tables. Since this is a work in progress, GHS classifications may not be shown for all chemical ingredients.-
Primary Chemical Name is the standard name assigned to a chemical substance.
ChemicalChemical Abstracts Service Registry Number is a unique identifier for a chemical and its synonyms. CAS numbers identify the chemical, but not its concentration or specific mixture. CAS Registry Numbers are assigned by the Chemical Abstracts Service, a division of the American Chemical Society. For more information: www.cas.org
CAS No./ID
We have assigned "ID numbers" (with 6 leading zeros or nines, e.g., 000000-xx-x , 888888-xx-x) or 999999-xx-x) for blends and chemicals that do not have CAS numbers.Percent of chemical in preparation.
% Conc.Chemical of Concern (CoC)
Chemical of Concern(CoC)Silane (unspecified) 888888-07-0 1.0-5.0 No Distillates, petroleum, hydrotreated middle 064742-46-7 10.0-30.0 No Silica, amorphous (Diatomaceous silica) 007631-86-9 10.0-30.0 No Acetic acid 000064-19-7 1.0-5.0 Yes 
CoC List
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Health Effects Information
Ingredients and Health Effects Information are taken from the manufacturer's product label and/or the Safety Data Sheet (SDS). Products are not tested and manufacturer's information presented here is not evaluated by DeLima Associates.
View Safety Data Sheet(SDS) Date that the Safety Data Sheet (SDS) was issued by manufacturer of a specific product.
SDS DATE :August 01, 2014 -
V.O.C Information
Volatile Organic Compounds g/L Without Solvent : 30
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Warnings
Warning! Uncured sealant irritates eyes, skin and respiratory tract. Prolonged or repeated
Contact with skin may cause allergic reaction.
Warning! Contains acetoxysilanes and petroleum distillate. Contact with uncured sealant causes eye, skin and respiratory irritation. Prolonged or repeated skin contact with uncured sealant may cause allergic ski reaction. Use with adequate ventilation. Acetic acid, which irritates eyes and respiratory tract, is released during curing. Do not get in eyes or on skin or clothing. Remove contact lenses before using sealant. Wash hands after using. Do not swallow. Keep out of the reach of children.
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Acute health effects
From MSDS:
Health Hazard Data
Emergency Overview: Warning: Causes skin irritation. May cause an allergic skin reaction. Causes serious eye irritation.
Potential Health Effects
Routes of Entry: Skin, Inhalation, Eyes.
Eye Contact: Causes serious eye irritation.
Skin Contact: Causes skin irritation. May cause allergic skin reaction.
Inhalation: Acetic acid produced during cure may irritate eyes, nose and throat. When heated to temperatures exceeding 300 deg F (150 deg C) in the presence of air, silicones may form formaldehyde vapors. Formaldehyde is a potential cancer hazard and a known skin and respiratory sensitizer. Vapors irritate the eyes, nose and throat. Safe handling conditions may be maintained by keeping formaldehyde vapor concentrations below the OSHA permissible limit.
Ingestion: Not expected to be harmful by ingestion. -
Chronic health effects
From MSDS:
No information provided. -
Carcinogenicity
Not listed by IARC, NTP and OSHA.
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Handling information
Avoid contact with eyes, skin and clothing. Do not handle contact lenses until all sealant has been removed from hands. Residual sealant may transfer to lenses and cause eye irritation. Store in a dry area below 90 deg F. Keep container closed.
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Disposal information
Dispose of according to Federal, State and local governmental regulations
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California Prop. 65 Warning
No California Proposition 65 listed chemicals are known to be present.
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First Aid
Eye Contact: Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. If adverse health effects develop seek medical attention.
Skin Contact: Wipe off paste with paper towel or cloth. Wash with soap and water. If skin irritation persists, call a physician.
Inhalation: Move to fresh air. If symptoms develop and persist, get medical attention.
Ingestion: Do not induce vomiting. If a person feels unwell or symptoms of skin irritation appear, consult a physician.
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UN Global Harmonization Classification
