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Permanent, Transparent Anti-fog Coating for Spacesuit Helmets

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC23PB476
Agency Tracking Number: 231135
Amount: $149,965.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: H4
Solicitation Number: SBIR_23_P1
Solicitation Year: 2023
Award Year: 2023
Award Start Date (Proposal Award Date): 2023-07-21
Award End Date (Contract End Date): 2024-02-02
Small Business Information
2501 Earl Rudder Freeway South
College Station, TX 77845-6023
United States
DUNS: 184758308
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Nathaniel Hawthorne
 (979) 764-2200
Business Contact
 Shawn Rhodes
Phone: (979) 764-2211
Research Institution

Fogging of polycarbonate spacesuit helmets is detrimental to astronaut safety and to the success of the mission. Currently used anti-foggingnbsp; methods are temporary, and require the reapplication of a coating before each use. These temporary solutions have been shown to delaminate during use and have led to eye irritation and temporary blindless during spacewalks. Potential permanent solutions NASA has tested lack in durability and are prone to coating damage and delamination during cleaning. NASA seeks the development of a permanent anti-fog solution that (i) maintains visible light transmission above 70%, (ii) can be applied with uniform thickness, (iii) can be applied to objects regardless of geometry, and (iv) has demonstrated durable anti-fogging properties, such as maintained clarity over 216,000 steam cycle exposures, coating stability over 100 cycles of wiping with deionized water and a soft wipe, and a grade of 5B on the ASTM D3359 adhesion test. To address these requirements, Lynntech will leverage its experience with coating development to fabricate a permanent, durable, anti-fog coating that can be applied to polycarbonate. In the Phase I project, Lynntech will demonstrate the proof of concept by applying our coating to flat polycarbonate and verifying the durability of its anti-fogging properties. Additionally, Lynntech will develop an application method for coating curved objects, such as a prototype spacesuit helmet, to be utilized in Phase II.

* Information listed above is at the time of submission. *

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