The slab flush presscake is bleached for strength and checked by a spectrometer versus a standard presscake, and then a pull down is made to evaluate masstone
, shade, body, transparency, gloss and undertone.
In terms of the specific changes in color and gloss expected for different weathering processes, for the case of these DPP Red masstone
coatings (where initial color coordinates were measured to be about L* = 35, a* = 64, b* = 54, i.
Jetness and masstone
were also measured on non-cured extruded tapes using a Hunter MiniScan XE instrument (angle: 45[degrees]/0[degrees]).
The most common use is for pigmentation, which can be split into masstone
The synthetic substrate enables clear and brilliant masstone
Bone black pigment specialty products characterized by high masstone
, easy dispersibility, low oil absorption, and low cost.
Each product will have its own specification range that will include an acceptable limit for color properties such as strength, tint shade, and masstone
shade, all of which are measured versus the manufacturer's standard lot.
It offers high brilliance and sparkle effects, has a neutral white masstone
color, and its thin flakes offer high luster and coverage.
The typical gloss retention for masstone
coatings was about 50% after 10 years of exposure in Florida.
red 2B 2 2 2 Phthalocyanine (NC) 1 1 1 Phthalocyanine (RS) 1 1 1 Phthalocyanine (GS) 1 1 1 Naphthol 2 1 1 Pigment green B 2 1 1 Diarylide (AAMX) 1 1 1 Diarylide (AAOA) 1 1 1 Diarylide 2 1 1 Diarylide (AAA) 2 1 1 Hansa 2 3 3 Diarylide (AAOT) 2 1 1 Lithol rubine 2 2 2 Ultramarine blue 1 1 1(A) Chromium oxide 1 1 1 1 - masstone
Heat stability 1 - 350[degrees]F 2 - 330[degrees]F 3 - 300[degrees]F Light stability 1 - 200 hours 2 - 100 hours 3 - 50 hours Soap bleed 1 - no bleed 2 - slight bleed 3 - bleed Open steam 1 - excellent 2 - good 3 - don't use Heat stability refers to conventional press cures.
The second product, 228-4828, is a blue-shade quinacridone violet similar in tint and masstone
to competitive products but, according to the manufacturer, providing better strength.
For heat-reflective pigments, Pflaumer has developed a new blue-shade masstone
black dispersion for a coating that comes close to the heat reflectance of a white substrate and reduces the heat build-up of the control black coating by 77[degrees]F (Figure 4).