Reynolds Advanced Materials
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duoMatrix™ NEO™

Polymer Modified Gypsum UL-94V-O and ASTM E-84, Class A Flame Rated

The mix ratio of NEO is a convenient 2A:1B by volume. NEO is easy to use and can be cast solid, slush cast, rotationally cast, laid up by hand with chopped glass fiber or sprayed. NEO can be thickened using Matrix™ Thickener, accelerated using Matrix™ Accelerator and slowed using Matrix™ Retarder. Fully cured pieces are strong, water-resistant and can be painted, sanded, machined and more.

NEO certifies to the highest flame rating (UL-94V-O / ASTM E-84 – Class A), making it suitable for public space applications including creating themed environment elements, architectural elements, sculpture and more. Versatility – NEO can take you in many creative directions by allowing you to make a variety of finish effects including different colors, metallics, glitters, stone and more

See and for more information on coloring and adding fillers and powders to NEO to create casting effects.


Subtotal: $0.00
ProductSizeNet WeightPrice Quantity
duoMatrix NEO
Gypsum-based polymer casting system. 2A:1B by volume mix ratio - no scale required.
How Does It Work? WARNING: Prop 65 NoticeWARNING: Known to the state of CA to cause cancer, birth defects or reproductive harm -
Look Closer Trial Unit 3 lbs. $39.35
Look Closer Gallon Unit 27 lbs. $118.20
Look Closer 16 Gallon Unit 150 lbs. $545.49
Matrix Accelerator
duoMatrix™-G Accelerator (powder) will reduce the demold time of duoMatrix™-G
Look Closer 1 lb 1 lb. $11.32
Matrix Retarder
Extend the working time of duoMatrix™ NEO by adding a very small amount of duoMatrix™ NEO Retarder to the mix.
Look Closer 1 ounce .08 lb. $7.44
Matrix Thickener
duoMatrix™-G Accelerator (powder) will reduce the demold time of duoMatrix™-G
Look Closer 8 ounce 0.6 lb. $8.47
alertPRODUCT MAY FREEZE IN TRANSIT – order may be delayed due to freezing temperatures.