More about this product
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Bulk sales:
Large quantities of flocked light trap material are available at discount for O.E.M.s, or other buyers who need large quantities. Please call or e-mail us for more information.
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Features:
 Absorbs over 99% of visible light (see graph).
Peel-n-stick self-adhesive material.
Effective even at high angles of incidence.
Engineered to be a light trap (not a decorative flocking).
Made from moisture-proof synthetic material.
Image contrast suffers when stray light reaches the focal plane. The best flat black paint still reflects about 5% of incident light, and even more when viewed at high angles of incidence (AOI). ProtoStar flocked light trap material is specifically engineered to be a light absorbing surface, and is equally effective at all angles of incidence. Unlike “decorative” flocking grades, the fibers don’t shed on your optical surfaces. The material is 100% synthetic based, so it's not damaged by moisture. Small pieces can be used to cover exposed edges of secondary mirrors and primary cells, covering annular baffle surfaces, and Barlow lenses. The improvement in field contrast is most noticeable when you look at a bright planets and the Moon.
Other applications include:
Home theaters (black-out screen surrounds).
Room darkening.
Spectrographs.
Box cameras and kaleidoscopes.
Constructing video production backgrounds (or "black walls").
Making light trap boxes.
Specifications:
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Weight per area
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0.89 oz./ft²
(0.27 kg/m²)
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Thickness (uncompressed)
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0.023 - 0.025"
(0.58 - 0.64 mm)
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Avg. visible reflectivity @ 0º AOI
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<0.4%
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Avg. visible reflectivity @ 80º AOI
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<0.7%
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Spectral reflectivity response
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See graph 
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Adhesion pull strength
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12.8 lbs/in.
(23.6 N/cm)
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Thermal expansion coeff
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42 x 10(-6) in/in/F
(75 x 10(-6) m/m/K)
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Environmental temp range
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-30º to 150º F
(-35º to 65º C)
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Now all of the flocked light trap products feature the same strong self-adhesive "Hi-tack" formula. For larger telescopes or other big coverage applications, the roll-cut material is more versatile and economical. The die-cut sheets are conveniently sized to be easier to work with, and can be economically shipped anywhere in the world. Installation instructions and tips included. Made in the U.S.A.
Important Note: Beginning April 9, 2008, the adhesive strengths of the roll-cut and die-cut sheet light trap materials are the same. Both products now use the same "Hi-tack" adhesive formulation.
Prices:
Part No.
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Description
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Price (US$)
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FPR-01
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Hi-tack flocked light trap material; cut to length from 30" wide roll
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$0.50 per inch
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FPR-02
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Hi-tack flocked light trap material "mini-roll"; 30" width x 200" length
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$75.00
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FPR-03
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Hi-tack flocked light trap material "bulk roll"; 30" width x 500" length
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$180.00
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FPS-01
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Hi-Tack flocked light trap; 20" x 28" die-cut sheet (shipped anywhere)
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$12.00
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Larger quantities available at additional discount. Call or e-mail for a quote.
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