MaxMax PTFE White Paint
MaxMax PTFE White Paint
- White Reflective Paint from 200nm to 1500nm
- PTFE pigment based
- Adheres to paper, plastic, metal, glass and most materials
- Applies mostly clear and dries bright white
- Does not fluoresce
- 1 micron particle size
- Non-Toxic
- Whiter than Barium Sulfate
- Whiter then Calcium Carbonate
- Similar to Spectralon Paint
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Finding a paint that is reflective below 350nm is difficult. Most of the white paints use binders that block UV light below 400nm so although they appear white to the human eye, they become dark below 400nm and almost completely black by 375nm. We tested a variety of the whitest, white paints and found they all fail to reflect below 400nm and some exhibit a degree of fluorescence.
While Barium Sulfate and Calcium Carnonate have been used for white paint, they are not as high performance as a PTFE based paint. Even when using a PTFE pigment, the choice of a binders and solvents is critical since most binders block UV. This is a common problem with many epoxies as well which is why a UV capable camera lens works best when designed with air gaps between lens elements because cementing lens elements together almost always limits UV performance.
Below is a comparison of our PTFE White paint versus some of the whitest artist paints available. Note that the White Heritage 2.0 paint has a small degree of fluorescence around 450nm. Both paints drop off to less than 50% reflection by 400nm..
