3M Aerospace Sealant AC-770 B-2 Base

3M United Kingdom PLC

Revision date : 2026-03-26

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

Note: Ingredients listed on restricted chemical lists

EC/CAS

219-784-2/2530-83-8

Name of the chemical

[3-(2,3-epoxypropoxy)propyl]trimethoxy silane

Concentration

<2

EC/CAS

216-823-5/1675-54-3

Name of the chemical

2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bisoxirane

Concentration

<1

EC/CAS

200-001-8/50-00-0

Name of the chemical

Formaldehyde

Concentration

<0.1

EC/CAS

207-439-9

Name of the chemical

Calcium carbonate

Concentration

15-25

General Information

Version

8.01

Revision date

2026-03-26

Product name

3M Aerospace Sealant AC-770 B-2 Base

1.2.1 Relevant identified uses

Sealant

Emergency telephone

+44 (0)1344 858 000

Icons in SDS

GHS07 M004 M009 M010 M011 M017 M026

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

WARNING

Hazard Codes

Hazard statements (CLP)

H319

Hazard statements

Code

Statements

H319

Causes serious eye irritation

Section 2

SECTION 2: Hazards identification

No 1272/2008 Classification of the substance or mixture

Signal word

WARNING.

Hazard pictograms

GHS07 (Exclamation mark) |

Hazard statements

H319 Causes serious eye irritation.

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. For containers not exceeding 125 ml the following Hazard and Precautionary statements may be used: No hazard statements are required for containers <=125 mL. No precautionary statements are required for containers <=125 mL.

Supplemental label elements

EUH208

Contains

1-Propanethiol, 3-(dimethoxymethylsilyl)-. | Formaldehyde, oligomeric reaction products with phenol. | bis-[4-(2,3-epoxipropoxi)phenyl]propane. | formaldehyde . May produce an allergic reaction. 78% of components with unknown hazards to the aquatic environment

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: Serious Eye Damage/Eye Irritation, Category 2 - Eye Irrit. 2; H319 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 WARNING. Symbols GHS07 (Exclamation mark) | Pictograms HAZARD STATEMENTS: H319 Causes serious eye irritation. PRECAUTIONARY STATEMENTS 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. For containers not exceeding 125 ml the following Hazard and Precautionary statements may be used: No hazard statements are required for containers <=125 mL. No precautionary statements are required for containers <=125 mL. SUPPLEMENTAL INFORMATION: Supplemental Hazard Statements: EUH208 Contains 1-Propanethiol, 3-(dimethoxymethylsilyl)-. | Formaldehyde, oligomeric reaction products with phenol. | bis-[4-(2,3-epoxipropoxi)phenyl]propane. | formaldehyde . May produce an allergic reaction. Contains 78% of components with unknown hazards to the aquatic environment. 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 Propane, 1,2,3-trichloro-, polymer with (CAS-No.) 68611-50-7 70 - 80 Substance not classified as hazardous 1,1'-[methylenebis(oxy)]bis[2- chloroethane] and sodium sulfide (Na2(Sx)), reduced Calcium carbonate (CAS-No.) 471-34-1 15 - 25 Substance with a national occupational (EC-No.) 207-439-9 exposure limit Formaldehyde, polymer with 3-chloro-1- (CAS-No.) 28470-78-2 < 2 Substance not classified as hazardous propene and phenol [3-(2,3- (CAS-No.) 2530-83-8 < 2 Eye Dam. 1, H318 epoxypropoxy)propyl]trimethoxysilane (EC-No.) 219-784-2 Aquatic Chronic 3, H412 Siloxanes and Silicones, di-Me, reaction (CAS-No.) 67762-90-7 < 2 Substance with a national occupational products with silica exposure limit 1-Propanethiol, 3-(dimethoxymethylsilyl)- (CAS-No.) 31001-77-1 < 1 Acute Tox. 4, H302 (EC-No.) 250-426-8 Skin Sens. 1B, H317 Aquatic Chronic 2, H411 Formaldehyde, oligomeric reaction (CAS-No.) 9003-35-4 < 1 Skin Sens. 1, H317 products with phenol (EC-No.) 500-005-2 bis-[4-(2,3-epoxipropoxi)phenyl]propane (CAS-No.) 1675-54-3 < 1 Skin Irrit. 2, H315 (EC-No.) 216-823-5 Eye Irrit. 2, H319 Skin Sens. 1, H317 Aquatic Chronic 2, H411 formaldehyde (CAS-No.) 50-00-0 < 0.1 Acute Tox. 2, H330 (EC-No.) 200-001-8 EUH071 Acute Tox. 4, H302 Skin Corr. 1B, H314 Eye Dam. 1, H318 Skin Sens. 1A, H317 Muta. 2, H341 Carc. 1B, H350 Nota B,D,F Acute Tox. 3, H311 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 bis-[4-(2,3-epoxipropoxi)phenyl]propane (CAS-No.) 1675-54-3 (C >= 5%) Skin Irrit. 2, H315 (EC-No.) 216-823-5 (C >= 5%) Eye Irrit. 2, H319 formaldehyde (CAS-No.) 50-00-0 (C >= 25%)EUH071 (EC-No.) 200-001-8 (C >= 25%) Skin Corr. 1B, H314 (5% =< C < 25%) Skin Irrit. 2, H315 (C >= 25%) Eye Dam. 1, H318 (5% =< C < 25%) Eye Irrit. 2, H319 (5% =< C < 25%) STOT SE 3, H335 For information on ingredient occupational exposure limits or PBT or vPvB status, see sections 8 and 12 of this SDS

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