Neutral Gray N5

Resin: methylmethacrylate/butylacrylate copolymer dispersion polymer
Vehicle: water
Pigment Identification: PW6, PBk9, PBr7
Lightfastness: I (per ASTM D5298)
Permanency: Excellent
Opacity: 2 (1 = most opaque and 8 = most transparent)
Viscosity: 24,000 - 28,000 cPs (as measured on a Brookfield RV viscometer)
pH: 8.4 - 9.0 (slightly alkaline)
Gloss: 35 - 45 (using a 75o Glossmeter)
Flexibility: ASTM D522, Test Method B - Cylindrical Mandrel Test at 70oF, 6mil thick film passes at 1/4" diameter mandrel. Adequate flexibility to withstand loose rolling and restretching at room temperature. Paint films become more brittle below 50oF, and should not be bent or flexed under such conditions. Withstands expansion and contraction caused by changes in temperature and humidity.
Drying/Curing Time: a 10mil wet film will dry to touch within 2 hours when temperature is above 65oF and humidity is below 70%. Thicker films will cure much more slowly. Lower temperatures and/or higher humidities will also slow drying process considerably.
Spectrophotometer Readings: N/A
Viscosity Range: 20000-24000 CPS
PH Range: 8.7-9.0
Gloss Average: NA
CIE L*a*b* Values: L*52.02 a*-0.21 b*-0.28
Tint Strength: NA

The Lightfastness Ratings included in this chart are provided by the American Society for Testing and Materials (ASTM) in the standard for “Artists’ Acrylic Emulsion Paints”. (ASTM D 5098, Annual Book of Standards, Volume 6.02). Colors with a Lightfastness Rating of I are considered Excellent (“Exc.”) and those with a Lightfastness Rating of II are Very Good (“V.G.”). Where Lightfastness Ratings have not been obtained according to ASTM test protocol, “NA” is indicated in the table. In these cases, data from pigment manufacturers and our own test facilities have been used and an appropriate description assigned under Permanency.

**The identified colors are sensitive to a combination of moisture and UV radiation and are not recommended for outdoor use.

For Opacity/Transparency, we have determined that an eight-point scale is most appropriate for describing the properties of our colors. We have assigned each color in the chart a number from 1 (most opaque) to 8 (most transparent) to indicate the relative opacity/transparency of that color.

The C.I. (Colour Index) Name is an internationally recognized code assigned to a particular “colorant.” The C.I. Name consists of the category (type of dye or pigment), general hue and serial number assigned, based on its chemical constitution. For example, PB 60, Anthraquinone Blue, indicates a specific Pigment Blue. The C.I. Number is a five-digit reference number assigned in the Colour Index based on the chemical structure of a colorant, regardless of usage class.

Notes:
1) The Golden C.P. designation indicates concentrated cadmium pigments (CC).

2) Information about Iridescent and Interference products apply for both Fine and Coarse grades.