API offers circularly polarized and non-polarized filters in a wide variety of colors and transmission values. The choice of filter color is dependent on the type of display and the user's environment.

Circular Polarized Filters

Our circular polarizers are laminated onto acrylic substrates. Please contact us if you require color or transmission that is not shown.

Color	Transmission
Neutral Grey	37%
Neutral Grey	10%
Red	5%
Amber	22%
Blue	17%
Green	6%

Circular Polarizer Sheet Specifications & Pricing

Non-Polarized Acrylic Filters

The chart below presents just a few of the acrylic colors we offer. Please contact us if you require color or transmission that is not shown.

Color	Transmission	API Color Number
Gray	32%	37
Gray	45%	94
Gray	76%	15
Red	11%	23
Yellow	77%	08
Amber	48%	22
Bronze	61%	39
Green	16%	92
Blue	32%	69X2
Blue-Green	10%	49