Note: Ingredients listed on restricted chemical lists
EC/CAS
107-51-7
Name of the chemical
Octamethyltrisiloxane
Concentration
>=2.4-<=3.7%
General Information
Revision date
2025-02-19
Product name
DOWSIL 758 Silicone Weather Barrier Sealant
1.2.1 Relevant identified uses
Construction materials and additives Adhesive, binding agents
Emergency telephone
1-800-424-9300, 1-989-636-4400
Icons in SDS
Company Information
company name
DOW CHEMICAL CANADA ULC
e-mail address of the competent person responsible for the Safety Data Sheet
SDSQuestion@dow.com
GHS Information
Signal word
DANGER!
Hazard Codes
Hazard statements (CLP)
H317, H318, H350
Hazard statements
Code
Statements
H317
May cause an allergic skin reaction
Section 2
SECTION 2: Hazards identification
Hazard classification This product is hazardous under the criteria of the Hazardous Products Regulation (HPR) as implemented under the Workplace Hazardous Materials Information System (WHMIS 2015). Serious eye damage - Category 1 Skin sensitisation - Sub-category 1B Carcinogenicity - Category 1B Specific target organ toxicity - repeated exposure - Category 2 - Oral
Hazard pictograms
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Signal word
DANGER! H317 May cause an allergic skin reaction. H318 Causes serious eye damage. H350 May cause cancer. H373 May cause damage to organs (Blood) through prolonged or repeated exposure if swallowed.
Prevention
P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P260 Do not breathe dust. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P280 Wear protective gloves, protective clothing, eye protection, face protection and hearing protection.
Response
P302 + P352 IF ON SKIN: Wash with plenty of water. P305 + P351 + P338 + IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON P310 CENTER. P308 + P313 IF exposed or concerned: Get medical attention. P314 Get medical attention if you feel unwell. P333 + P313 If skin irritation or rash occurs: Get medical attention. P362 + P364 Take off contaminated clothing and wash it before reuse.
Storage
P405 Store locked up.
Disposal
P501 Dispose of contents and container to an approved waste disposal plant.
Other hazards
No data available
2.1 Classification of the substance or mixture
This product is hazardous under the criteria of the Hazardous Products Regulation (HPR) as implemented under the Workplace Hazardous Materials Information System (WHMIS 2015). Serious eye damage - Category 1 Skin sensitisation - Sub-category 1B Carcinogenicity - Category 1B Specific target organ toxicity - repeated exposure - Category 2 - Oral
