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Home Products Manufacturers Ingredients Health Effects
Product Information
Product Name: Thoro Underlayment, Self Leveling
Form: powder
Product Category: Home maintenance » underlayment » Floor
Customer Service: 800-433-9517
Date Entered: 2001-08-15
Related Items: Products with similar usage in this database
Manufacturer: Degussa Building Systems
Name changed to BASF Construction Chemicals
Address: 889 Valley Park Drive
City: Shakopee
State: MN
Zip Code: 55379
Telephone Number: 973-245-6000
Toll Free Number: 800-433-9517
Date Info Verified: 2017-02-28
Related Items: Products by this manufacturer
The following information (Health Effects, Handling/Disposal, and Ingredients) is taken from the product label and/or the (Material) Safety Data Sheet, (M)SDS, prepared by the manufacturer. The National Library of Medicine does not test products nor does it evaluate information from the product label or the (M)SDS. (What is an (M)SDS?)
Health Effects
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Warnings: Thoro Underlayment Self-Leveling contains silicon dioxide (quartz). Product is alkaline on contact with water and may cause injury to skin or eyes. Ingestion or inhalation of dust may cause irritation. Contains free respirable quartz, which has been listed as a suspected human carcinogen by NTP and IARC. Repeated or prolonged overexposure to free respirable quartz may cause silicosis of other serious and delayed lung injury. KEEP OUT OF THE REACH OF CHILDREN. Prevent contact with skin and eyes. Prevent inhalation of dust. DO NOT take internally. Use only with adequate ventilation. Use impervious gloves, eye protection and if used in a poorly ventilated area, use NIOSH/MSHA
approved respiratory protection in accordance with applicable federal, state and local regulations. In case of eye contact, flush thoroughly with water for at least 15 minutes. SEEK IMMEDIATE MEDICAL ATTENTION. In case of skin contact, wash affected areas with soap and water. If irritation persists, SEEK MEDICAL ATTENTION. Remove and wash contaminated clothing. If inhalation causes physical discomfort, remove to fresh air. If discomfort persists or any breathing difficulty occurs or if swallowed, SEEK IMMEDIATE MEDICAL ATTENTION. This product contains material listed by the state of California as known to cause cancer, birth defects or other reproductive harm.
Acute Health Effects: From MSDS
EYES: This material can irritate and burn human eyes following contact. The aggregate particles may cause corneal abrasions.
SKIN: Dryness, itching, rashes and burns can develop following contact with the skin. Skin abrasions can occur if material is rubbed against the skin. Dermatitis and skin sensitization can develop after repeated or prolonged exposure. This material is not absorbed through the skin.
INHALATION: Repeated inhalation of silica in excess of the TLV over extended periods can result in irreversible fibrosis of the lungs (silicosis). Overexposure to dusts can irritate the respiratory tract and cause damage to the mucous membranes of the upper respiratory tract.
INGESTION: No known toxic effects. May cause digestive tract irritation.
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE: No other clinical effects are known to be associated with this material.
NOTE: Preexisting respiratory or skin condition(s) may be aggravated by exposure.
Chronic Health Effects: From MSDS
Dermatitis and skin sensitization can develop after repeated or prolonged exposure. Repeated inhalation of silica in excess of the TLV over extended periods can result in irreversible fibrosis of the lungs (silicosis).
Carcinogenicity: From MSDS
The International Agency for Research on Cancer (IARC) classified crystalline silica inhaled in the form of quartz cristobalite from occupational sources as carcinogenic to humans. This assignment was based on a relatively large number of epid
First Aid: From MSDS
INHALATION: Remove victim to fresh air. If breathing is difficult, administer oxygen. Consult a physician.
INGESTION: Give one or two glasses of water to drink. If gastrointestinal symptoms develop, consult medical personnel. Never give anything by mouth to an unconscious person.
EYES: Do not rub eyes. Flush with water for at least 15 minutes. Obtain medical attention. Consult medical personnel.
SKIN: Do not rub skin. Wash with soap. Flush with water for at least 15 minutes.
Health Rating: N
Flammability Rating: N
Reactivity Rating: N
HMIS Rating Scale: 0 = Minimal; 1 = Slight; 2 = Moderate; 3 = Serious; 4 = Severe; 
N = No information provided by manufacturer; * = Chronic Health Hazard
MSDS Date: 1999-07-13
Handling: From MSDS Prevent skin and eye contact. observe TLV limitations. Avoid breathing dusts. Sensitized individuals should not be exposed to the product which caused sensitization. Store in a cool, dry area off the ground. Minimize generation of dust.
Disposal: From MSDS Reuse powder or mixed material if uncontaminated. Discarded product and hardened mortar are non-hazardous waste under RCRA 40 CFR 261.21. Dispose of non-hazardous waste in compliance with applicable regulations.CONTAINER DISPOSALEmpty container retains product residue. Observe all hazard precautions and personal protection recommendations when handling empty containers. Dispose of non-hazardous waste in compliance with applicable regulations.
Ingredients from (M)SDS/Label
ChemicalCAS No / Unique IDPercent
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