A.12.7. PSB
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PRODUCT |
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Type |
Matt-white, Thermal-control Paint |
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Chemical Composition |
Potassium Silicate/Zinc Orthophosphate |
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Manufacturer |
Société MAP S.A. Z.I.
rue Clément Ader, F-09100
Pamiers France |
Tel: +33 (0)5 34 01 27 00 Fax: +33 (0)5 61 60 28 77 Email: map@map-coatings.com www.map-coatings.com |
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EXPERIENCE & AVAILABILITY |
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Development Status |
Special Commercial Product |
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Cost Range |
Medium |
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Lot Reproducibility |
Good |
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Space Experience |
Fair |
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GENERAL PROPERTIES (Physical,
Mechanical, Thermal, Electrical, Optical) |
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Nature |
Typical Value |
Remarks |
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Thickness |
130 to 150 mm |
Manufacturer’s Data |
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Solar Absorptance |
0.14 ±
0.02 (Aluminium substrate, coating 150 mm thick) |
ECSS-Q-70-09, depends on topcoat thickness. |
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Hemisperical Emittance |
0.88 |
ECSS-Q-70-09 |
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Normal Emittance |
0.90 ±
0.04 |
ECSS-Q-70-09 |
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Shelf Life |
1 Month |
Manufacturer’s Data |
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PROPERTIES RELEVANT TO SPACE USE (Effects of and/or on environment) |
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Nature |
Typical Value |
Type of Test |
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Outgassing |
TML = 3.04%, RML = 0.04%, CVCM = 0.00% |
ECSS-Q-70-02 |
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Thermal Cycling |
Pass |
200 cycles 10-6 torr (-150°C; +100°C) |
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UV Radiation |
Das
= +0.03 De =
+0.00 |
1500 esh @ 40°C |
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UV + e- + p+ |
Das
= +0.25 De =
+0.00 |
2.5 years GEO |
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Atomic Oxygen |
De
= +0.12mm,
Das
= +0.01, De =
0.00 |
2 x 1020 atoms.cm-2 |
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Induced Surface Potential: |
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+18°C |
25 V |
1nA.cm-2 ,
15 keV |
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+18°C |
50 V |
5nA.cm-2 ,
20 keV |
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-150°C |
900 V |
1nA.cm-2 ,
20 keV |
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SPECIAL RECOMMENDATIONS |
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·
Room temperature curing. ·
This paint is usable directly on aluminium substrates
without any chemical treatment. ·
The high value of TML is due to water. |
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