Aerospace Sealant AC-251 B-2 Catalyst

3M United Kingdom PLC

Revision date : 2026-09-02

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GHS05 GHS07 GHS08
Health risk rating 4
Safety risk rating 1
Environmental risk rating 1

Note: Ingredients listed on restricted chemical lists

EC/CAS

215-202-6/1313-13-9

Name of the chemical

Manganese dioxide

Concentration

15-60

Listed in

EC/CAS

204-407-6/120-55-8

Name of the chemical

DEGDB, Oxydiethylene-dibenzoate

Concentration

15-45

Listed in

EC/CAS

248-258-5/27138-31-4

Name of the chemical

DPGDB, Oxydipropyl dibenzoate

Concentration

<15

Listed in

EC/CAS

231-545-4/7631-86-9

Name of the chemical

Silver adsorbed on silicon dioxide

Concentration

<5

EC/CAS

215-691-6/1344-28-1

Name of the chemical

aluminium oxide

Concentration

<3

EC/CAS

272-697-1/68909-20-6

Name of the chemical

Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, hydrolysis products with silica

Concentration

<2

Listed in

EC/CAS

215-185-5/1310-73-2

Name of the chemical

sodium hydroxide

Concentration

<2

General Information

Version

1.00

Revision date

2026-09-02

Product name

Aerospace Sealant AC-251 B-2 Catalyst

Emergency telephone

+44 (0)1344 858 000

Icons in SDS

GHS05 GHS07 GHS08 M004 M009 M010 M011 M013 M017

Company Information

company name

3M United Kingdom PLC

e-mail address of the competent person responsible for the Safety Data Sheet

tox.uk@mmm.com

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H302, H315, H318, H373

Hazard statements

Code

Statements

H302

Harmful if swallowed

Section 2

SECTION 2: Hazards identification

No 1272/2008 Classification of the substance or mixture

Hazard pictograms

GHS05 (Corrosion) |GHS07 (Exclamation mark) |GHS08 (Health Hazard) | Ingredient CAS Nbr EC No. % by Wt manganese dioxide 1313-13-9 215-202-6 15 - 60 Disodium oxide 1313-59-3 215-208-9 < 3 Dipotassium oxide 12136-45-7 235-227-6 < 2

Hazard statements

H302 Harmful if swallowed. H315 Causes skin irritation. H318 Causes serious eye damage. H373 May cause damage to organs through prolonged or repeated exposure: nervous system.

Prevention

P260A Do not breathe vapours. P280A Wear eye/face protection.

Response

P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310 Immediately call a POISON CENTRE or doctor/physician. 1% of the mixture consists of components of unknown acute oral toxicity.

2.3 Other hazards

None known. 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: Acute Toxicity, Category 4 - Acute Tox. 4; H302 Skin Corrosion/Irritation, Category 2 - Skin Irrit. 2; H315 Serious Eye Damage/Eye Irritation, Category 1 - Eye Dam. 1; H318 Specific Target Organ Toxicity-Repeated Exposure, Category 2 - STOT RE 2; H373 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 GHS05 (Corrosion) |GHS07 (Exclamation mark) |GHS08 (Health Hazard) | Pictograms Ingredient CAS Nbr EC No. % by Wt manganese dioxide 1313-13-9 215-202-6 15 - 60 Disodium oxide 1313-59-3 215-208-9 < 3 Dipotassium oxide 12136-45-7 235-227-6 < 2 HAZARD STATEMENTS: H302 Harmful if swallowed. H315 Causes skin irritation. H318 Causes serious eye damage. H373 May cause damage to organs through prolonged or repeated exposure: nervous system. PRECAUTIONARY STATEMENTS Prevention: P260A Do not breathe vapours. P280A Wear eye/face protection. Response: P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310 Immediately call a POISON CENTRE or doctor/physician. 1% of the mixture consists of components of unknown acute oral toxicity. 2.3. Other hazards None known. 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 manganese dioxide (CAS-No.) 1313-13-9 15 - 60 Acute Tox. 4, H332 (EC-No.) 215-202-6 Acute Tox. 4, H302 EUH031 STOT RE 2, H373 Oxydiethylene dibenzoate (CAS-No.) 120-55-8 15 - 45 Substance not classified as hazardous (EC-No.) 204-407-6 Oxydipropyl dibenzoate (CAS-No.) 27138-31-4 < 15 Aquatic Chronic 3, H412 (EC-No.) 248-258-5 Zeolites (CAS-No.) 1318-02-1 1 - 10 Substance with a national occupational (EC-No.) 215-283-8 exposure limit Silicon dioxide (CAS-No.) 7631-86-9 < 5 Substance with a national occupational (EC-No.) 231-545-4 exposure limit Disodium oxide (CAS-No.) 1313-59-3 < 3 EUH014 (EC-No.) 215-208-9 Acute Tox. 3, H301 Skin Corr. 1B, H314 STOT SE 3, H335 Aluminium Oxide (non-fibrous) (CAS-No.) 1344-28-1 < 3 Substance with a national occupational (EC-No.) 215-691-6 exposure limit Carbon black (CAS-No.) 1333-86-4 < 2.5

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