Note: Ingredients listed on restricted chemical lists
EC/CAS
4098-71-9
Name of the chemical
3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate
Concentration
>=0.25-<1
EC/CAS
64359-81-5
Name of the chemical
4,5-Dichloro-2-octylisothiazol-3(2H)-one
Concentration
>=0.1-<0.25
General Information
Version
1.0
Revision date
2026-04-20
Product name
Sikalastic -621 TC
1.2.1 Relevant identified uses
Liquid applied membranes
Emergency telephone
+61 1800 033 111, +61 2 9725 33 30
Icons in SDS
Company Information
company name
Sika Australia Pty. Ltd
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H227, H317, H400, H411
Hazard statements
Code
Statements
H227
Combustible liquid
Section 2
SECTION 2: Hazards identification
GHS Classification Flammable liquids Category 4 Skin sensitisation Category 1 Short-term (acute) aquatic Category 1 hazard Long-term (chronic) aquatic Category 2 hazard
Signal word
Warning
Hazard statements
H227 Combustible liquid. H317 May cause an allergic skin reaction. H400 Very toxic to aquatic life. H411 Toxic to aquatic life with long lasting effects.
Prevention
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P261 Avoid breathing mist or vapours. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/ protective clothing/ eye protec- tion/ face protection/ hearing protection.
Response
P302 + P352 IF ON SKIN: Wash with plenty of water. P333 + P313 If skin irritation or rash occurs: Get medical ad- vice/ attention. P362 + P364 Take off contaminated clothing and wash it before reuse. P370 + P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P391 Collect spillage.
Storage
P403 Store in a well-ventilated place.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
Other hazards which do not result in classification
None known.
2.1 Classification of the substance or mixture
Flammable liquids : Category 4 Skin sensitisation : Category 1 Short-term (acute) aquatic : Category 1 hazard Long-term (chronic) aquatic : Category 2 hazard
