Note: Ingredients listed on restricted chemical lists
EC/CAS
225-863-2/5124-30-1
Name of the chemical
4,4'-methylenedicyclohexyl diisocyanate
Concentration
50-80
General Information
Version
3.01
Revision date
2026-02-13
Product name
3M Scotch-Weld Repair Paste 2220 B/A Part A
1.2.1 Relevant identified uses
Part A of two component Polyurethane Protective Tape Repair Paste
Emergency telephone
+44 (0)1344 858 000
Icons in SDS
Company Information
company name
3M United Kingdom PLC
e-mail address of the competent person responsible for the Safety Data Sheet
ner-productstewardship@mmm.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H315, H317, H319, H334, H335
Hazard statements
Code
Statements
H315
Causes skin irritation
Section 2
SECTION 2: Hazards identification
No 1272/2008 Classification of the substance or mixture
Hazard pictograms
GHS07 (Exclamation mark) |GHS08 (Health Hazard) | Ingredient CAS Nbr EC No. % by Wt 4,4'-methylenedi(cyclohexyl isocyanate) 5124-30-1 225-863-2 15 - 30 HDI oligomers, isocyanurate 931-274-8 5 - 15
Hazard statements
H315 Causes skin irritation. H319 Causes serious eye irritation. H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled. H317 May cause an allergic skin reaction. H335 May cause respiratory irritation.
Prevention
P261A Avoid breathing vapours. P280 Wear protective gloves and eye protection.
Response
P304 + P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P333 + P313 If skin irritation or rash occurs: Get medical advice/attention. P342 + P311 If experiencing respiratory symptoms: Call a POISON CENTRE or doctor/physician.
Contains
80% of components with unknown hazards to the aquatic environment
2.3 Other hazards
Persons previously sensitised to isocyanates may develop a cross-sensitisation reaction to other isocyanates. This material does not contain any substances that are assessed to be a PBT or vPvB
2.1 Classification of the substance or mixture
The retained CLP Regulation (EU) No 1272/2008 as amended for Great Britain The health and environmental classifications of this material have been derived using the calculation method, except in cases where test data are available or the physical form impacts classification. Classification(s) based on test data or physical form are noted below, if applicable. CLASSIFICATION: Skin Corrosion/Irritation, Category 2 - Skin Irrit. 2; H315 Serious Eye Damage/Eye Irritation, Category 2 - Eye Irrit. 2; H319 Respiratory Sensitization, Category 1 - Resp. Sens. 1; H334 Skin Sensitization, Category 1 - Skin Sens. 1; H317 Specific Target Organ Toxicity-Single Exposure, Category 3 - STOT SE 3; H335 For full text of H phrases, see Section 16. 2.2. Label elements The retained CLP Regulation (EU) No 1272/2008 as amended for Great Britain SIGNAL WORD DANGER. Symbols GHS07 (Exclamation mark) |GHS08 (Health Hazard) | Pictograms Ingredient CAS Nbr EC No. % by Wt 4,4'-methylenedi(cyclohexyl isocyanate) 5124-30-1 225-863-2 15 - 30 HDI oligomers, isocyanurate 931-274-8 5 - 15 HAZARD STATEMENTS: H315 Causes skin irritation. H319 Causes serious eye irritation. H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled. H317 May cause an allergic skin reaction. H335 May cause respiratory irritation. PRECAUTIONARY STATEMENTS Prevention: P261A Avoid breathing vapours. P280 Wear protective gloves and eye protection. Response: P304 + P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P333 + P313 If skin irritation or rash occurs: Get medical advice/attention. P342 + P311 If experiencing respiratory symptoms: Call a POISON CENTRE or doctor/physician. Contains 80% of components with unknown hazards to the aquatic environment. Information required per Regulation (EU) 2020/1149, amendment to REACH Regualtion (1907/2006) as amended for Great Britain, as regards diisocyanates: As from 24 August 2023 adequate training is required before industrial or professional use. Further information can be found at feica.eu/Puinfo 2.3. Other hazards Persons previously sensitised to isocyanates may develop a cross-sensitisation reaction to other isocyanates. This material does not contain any substances that are assessed to be a PBT or vPvB SECTION 3: Composition/information on ingredients 3.1. Substances Not applicable 3.2. Mixtures Ingredient Identifier(s) % Classification according to Regulation (EC) No. 1272/2008 [CLP], as amended for GB Polyurethane Prepolymer Trade Secret 50 - 80 Substance not classified as hazardous 4,4'-methylenedi(cyclohexyl isocyanate) (CAS-No.) 5124-30-1 15 - 30 Acute Tox. 2, H330 (EC-No.) 225-863-2 Skin Irrit. 2, H315 Eye Irrit. 2, H319 Resp. Sens. 1, H334 Skin Sens. 1, H317 STOT SE 3, H335 Nota 2 HDI oligomers, isocyanurate (EC-No.) 931-274-8 5 - 15 Acute Tox. 4, H332 Skin Sens. 1, H317 STOT SE 3, H335 Any entry in the Identifier(s) column that begins with the numbers 6, 7, 8, or 9 are a Provisional List Number provided by ECHA pending publication of the official EC Inventory Number for the substance. Please see section 16 for the full text of any H statements referred to in this section Specific Concentration Limits Ingredient Identifier(s) Specific Concentration Limits 4,4'-methylenedi(cyclohexyl isocyanate) (CAS-No.) 5124-30-1 (C >= 0.5%) Resp. Sens. 1, H334 (EC-No.) 225-863-2 (C >= 0.5%) Skin Sens. 1, H317 For information on ingredient occupational exposure limits or PBT or vPvB status, see sections 8 and 12 of this SDS SECTION 4: First aid measures 4.1. Description of first aid measures Inhalation Remove person to fresh air. If you feel unwell, get medical attention. Skin contact Immediately wash with soap and water. Remove contaminated clothing and wash before reuse. If signs/symptoms