Note: Ingredients listed on restricted chemical lists
EC/CAS
108-88-3
Name of the chemical
Toluene
Concentration
10-<20
EC/CAS
64742-04-7
Name of the chemical
Extracts (petroleum), heavy paraffinic distillate solvent
Concentration
3-<5
EC/CAS
64742-89-8
Name of the chemical
Solvent naphtha (petroleum), light aliph
Concentration
3-<5
General Information
Revision date
2026-02-04
Product name
Royston Thick N Quick Mastic
Manufacturer Name
CHASE CORPORATION
Emergency telephone
800-424-9300, 703-527-3887
Icons in SDS
Company Information
company name
CHASE CORPORATION
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H225, H304, H310, H315, H319, H340, H350, H361, H373, H402, H412
Hazard statements
Code
Statements
H225
Highly Flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
OSHA defined hazards Hazards of the product as supplied
Physical hazards
Flammable liquids Category 2
Health hazards
Acute toxicity, dermal Category 2 Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 2 Germ cell mutagenicity Category 1B Carcinogenicity Category 1B Reproductive toxicity Category 2 Specific target organ toxicity, repeated Category 2 exposure
Aspiration hazard
Category 1
Environmental hazards
Hazardous to the aquatic environment, acute Category 3 hazard Hazardous to the aquatic environment, Category 3 long-term hazard
Signal word
Danger
Hazard statements
H225 Highly flammable liquid and vapor. H304 May be fatal if swallowed and enters airways. H310 Fatal in contact with skin. H315 Causes skin irritation. H319 Causes serious eye irritation. H340 May cause genetic defects. H350 May cause cancer. H361 Suspected of damaging fertility or the unborn child. H373 May cause damage to organs through prolonged or repeated exposure. H402 Harmful to aquatic life. H412 Harmful to aquatic life with long lasting effects.
Prevention
P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P260 Do not breathe mist/vapors. P262 Do not get in eyes, on skin, or on clothing. P264 Wash thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection.
Response
P301 + P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor. P331 Do NOT induce vomiting. P303 + P361 + If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or P353 shower. P305 + P351 + IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present P338 and easy to do. Continue rinsing. P310 Immediately call a POISON CENTER/doctor. P332 + P313 If skin irritation occurs: Get medical advice/attention. P337 + P313 If eye irritation persists: Get medical advice/attention. P361 + P364 Take off immediately all contaminated clothing and wash it before reuse.
Storage
P403 + P235 Store in a well-ventilated place. Keep cool. P405 Store locked up.
Disposal
P501 Dispose of contents/container in accordance with local/regional/national/international regulations.
2.1 Classification of the substance or mixture
Category 1 Environmental hazards Hazardous to the aquatic environment, acute Category 3 hazard Hazardous to the aquatic environment, Category 3 long-term hazard OSHA defined hazards Not classified. Other hazards Hazard(s) not otherwise Static accumulating flammable liquid can become electrostatically charged even in bonded and classified (HNOC) grounded equipment. Sparks may ignite liquid and vapor. May cause flash fire or explosion. Supplemental information 18% of the mixture consists of component(s) of unknown acute hazards to the aquatic environment. 18% of the mixture consists of component(s) of unknown long-term hazards to the aquatic environment.