Development of a Chromium Free Anticorrosion Primer

Abstract

MAPSIL® SILICo has been developed to substitute current chromium-based anticorrosion primers (Sierra, Cr free anticorrosion primers and treatments, 2012; Sierra, MAP management according European regulations for critical substances, 2013). This product complies with following launchers and satellites specifications:

• 1. Outgassing compliance with the ECSS-Q-70-02C standard for satellite materials (ESA, Thermal vacuum outgassing test for the screening of space materials, 2008);

• 2. Compliant behaviour towards space environment which includes UV, e−, p+ and γ irradiations on Earth;

• 3. Environmental tests behaviour: damp heat test and salt spray test;

• 4. Good adhesion on aluminum substrates (7075-T0, 6061-T6, 2024-T3) and steel substrates for launcher applications;

• 5. Compatibility with silicone and polyurethane paints used for satellites (SG121FD, PNC, MAP® AQ PU1…) and launchers (MAP® AQ STATIC, MAPSIL® AS…) (Remaury, White antistatic paint for launcher: MAP® AQ STATIC, CNES report, DCT-TV-TH-NT11-4384, 2011; Remaury, Black polyurethane waterborne non electrically conductive paint: MAP AQ PU1, CNES report, DCT-TV-TH-NT11-3938, 2011; Remaury, White antistatic coating for thermal protection of VEAG and ARIANE 5 launchers: MAPSIL® AS, CNES report, DCT-TV-TH-NT11-5588, 2011).

MAPSIL® SILICo has been developed in accordance with ISO 9001 and EN9100 standards ensuring quality of the products. This product is ITAR and EAR free as it is a co-development of a French company (MAP) and the French Space Agency (CNES).