REACH - Applications for authorisation AFA060-01 Strontium chromate (StC)

Overview

Public consultation on alternatives

Reference: AFA060-01

Applicant:

Cytec Engineered Materials Ltd in its legal capacity as Only Representative of Cytec Industries Inc.
Wesco Aircraft EMEA Ltd

Application type: Review report

Substance name: Strontium chromate (StC)

• EC Number: 232-142-6
• CAS Number: 7789-06-2

Proposed use: Use of bonding primers containing strontium chromate in aerospace and defence industry and its supply chains.

Broad information on use applied for (conditions of use and function):

Strontium chromate is used in bonding primers in the aerospace and defence industries (comprising of the civil aviation, defence/security, and space industries, along with aeroderivative products). Bonding primers provide corrosion resistance and promote and maintain adhesion between a substrate and an adhesive material. This gives key functions including adhesion promotion and corrosion resistance (including ‘active corrosion inhibition’).

The applicants have identified a shortlist of potentially suitable alternatives. Due to the complexity of design challenges, performance requirements, safety requirements and regulatory controls that must be tested for each listed alternative, and the need for industrial implementation in the whole supply chain, the applicants are seeking a review period of 12 years.

This “applied for use” involves the continued use of strontium chromate across approximately 50 sites across Great Britain (GB).

List of descriptors: 

• Sector of end use (SU): 0 Other: Aerospace and defence industry and its supply chains
• Environmental release category (ERC): 5
• Process category (PROC): PROC 0, PROC 5, PROC 7, PROC 8b, PROC 9, PROC 10, PROC 21, PROC 24, PROC 28
• Product category (PC): 9a: Coatings and paints, thinners, paint removers
• Article category related to subsequent service life (AC): N/A
• Technical Function: Other: Adhesion promotion; and Corrosion resistance (including ‘active corrosion inhibition’).

Annual tonnage used: <14.74 tonnes/year 

Review period requested: 12 years 

How to submit comments

Provide some basic information on possible alternative(s) in the online survey below but more detailed information should be provided in document(s) prepared using the commenting templates in the related section below. A “public version” should always be completed and will be published after the consultation has closed. If you want to include confidential information in your submission, please additionally complete a “confidential version” and submit both versions as attachments.

The consultation lasts for 8 weeks (unless otherwise specified) and closes at 23:59 London time (BST).