Castin'Craft Clear Polyester Casting Resin (Bulk) | Epoxy Resin Coatings, Casting, Mold Making & More - Environmental Technology, Inc.

Castin'Craft Clear Polyester Casting Resin (Bulk)

Our clear liquid plastic casting resin is designed for casting or embedding objects. For best casting results, this product should be poured into self releasing polypropylene or polyethylene molds. Always work in a well ventilated area with a temperature of 65º to 75º F. Storage: casting resin should be stored in a cool dark area. Do not place in an area where freezing may occur.

Note: Casting Resin requires a catalyst curing agent. When ordering Casting Resin, order 1 ounce of Catalyst per 1 gallon of Casting Resin.

Clear Casting Resin – available in 1 gallon and 50 gallon containers.

Casting Resin Catalyst – Bulk
Available in 1oz. or 1 gallon containers.


Brookfield Viscosity. (RV) #2 @ 20 rpm 400 – 600
Catalyst %, DDM-9 1.0
Gel Time, min:sec 14:00 – 25:00
Gel to Peak Time, min:sec 35:00 – 60:00
Peak Exotherm °F (°C) 175–225 (79-107)
Solids % 62.0 – 64.5
Refractive Index 1.52



Property: ASTM Test Method Psi Mpa
Flexural Strength D-790 13,200 91
Flexural Modulus D-790 7.32 x 105 5048
Tensile Strength D-638 6,400 44
Tensile Modulus D-638 7.17 x 105 4945
Tensile Elongation, % D-638 1.5 1.5
Heat Distortion Temperature D-648 115 °F / 46.1 °C
Hardness, Barcol 934-1 D-2583 38 - 42

All specifications and properties specified above are approximate. Specifications and properties of material may vary slightly from those given above. Environmental Technology Inc. makes no representations of fact regarding the material except those specified above. Final determination of the suitability of the material for the use contemplated is the sole responsibility of the buyer.