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Cultured Marble and Onyx

Silmar Resins Dual Purpose CastingSilmar® Resins – Marble

Silmar pioneered marble casting resins and they deliver the strength, durability and beauty needed in cultured marble and onyx products. With hundreds of millions of pounds of sold worldwide, SIL90BA-585 became the standard by which competitive marble resins are judged. Resins used in cultured marble applications need color consistency, excellent air release properties, and good thermal shock properties to withstand years of use.

SIL90BA-585

An unsaturated polyester resin pre-promoted for ambient temperature cure with MEK peroxide. This resin has the unique ability to encapsulate microscopic air with the matrix. This enables lighter parts to be produced or more parts to be manufactured for a given amount of cast polymer formulation. Cast parts made with this resin have a brighter and whiter appearance.


SIL90BA-1321

This is our unsaturated polyester resin; pre-promoted for ambient temperature cure with MEKP catalyst. It contains styrene monomer. This resin has a natural matrix color, good air release, medium viscosity, high filler loading and excellent physical properties. It is designed for general purpose cast marble applications.


SIL90BA-1000

An unsaturated polyester resin promoted for use with MEKP catalyst. It contains styrene monomer. This resin is designed for general purpose cast marble applications.


SIL90BA-770CH

Our unsaturated polyester resin pre-promoted for room temperature cure with MEK peroxide. It contains styrene monomer. This resin is a light colored, high viscosity polyester resin designed for synthetic marble casting applications. It's unique cure profile, low shrinkage and reduced exothermal development makes this product very forgiving and ideal for bathtub and shower receptor fabrication.


SIL90BA-1247

An unsaturated polyester resin pre-promoted for ambient temperature cure with MEKP catalyst. It contains styrene monomer. It has a natural matrix color, good air release, high viscosity, medium gel time and excellent physical properties. It is designed for general purpose cast marble application.


SIL90BA-220ECO

An unsaturated polyester resin that contributes to LEED points in cast polymer applications. This resin contains both post-consumer recycled material and rapidly renewable material. The USGBC awards LEED points for these categories through Materials and Resources MR 4.1-4.2 and MR 6 respectively. The post consumer recycled material is derived from bio-based sources (crops). This resin is designed for general purpose cast marble applications.



Silmar® Resins – Dual Purpose Casting

Our SIL94 Series resins are the perfect choice when marble, onyx or granite products are desired to be made using the same resin. For color consistency, versatility and inventory control the SIL94 products offer the manufacturer the best match.

SIL94BA-990

An ortho medium viscosity marble/onyx resin. It cures a very low color and makes very translucent onyx. This resin will fit a wide range of manufacturing conditions. SIL94BA-990A is a version of SIL94BA-990 with air-releasing agents.


SIL94BA-993B

This unsaturated polyester resin is prepromoted for room temperature cure with MEKP catalyst. It contains styrene monomer and is designed for marble/onyx two-way use.



Onyx Resins

The Silmar SIL92BA-793C onyx resin has been formulated to specifically meet our customer's needs in order to make the best onyx castings. It features a good, consistent cure while maintaining very low color.

SIL92BA-793C

This is the world's leading resin for synthetic onyx production. It is designed to produce clear, translucent casting when used with pigments, dyes, and fillers such as glass frit or alumina trihydrate. Bathtubs, unilavs, sinks and flastock may be cast from this resin. When properly finished, these units are almost identical in appearance to natural onyx and soapstone. Neutral base tone permits a wide variety of coloration.



DCPD Marble Resins

SIL91BA-2183

This is our unsaturated polyester resin pre-promoted for room temperature cure with MEKP initiator. It contains styrene monomer. It has moderate to low shrinkage, good filler wetting and air release and is designed for good general- purpose marble casting applications.


SIL91BB-2405A

An unsaturated polyester resin pre-promoted for room temperature cure with MEKP initiator. It contains styrene monomer and wax. This resin has a low viscosity, moderate to low shrinkage, good filler wetting and air release and is designed for general-purpose marble casting applications.


SIL91BB-2455

An unsaturated polyester resin pre-promoted for room temperature cure with MEKP initiator. It contains styrene monomer and wax. This resin has a medium viscosity, low shrinkage, low controlled exotherm, good filler wetting and air release and is designed for general-purpose marble casting applications.



Volume Enhancing Resins (VER)

Silmar volume enhancing resins increase production volumes, decrease part weights, and save money. Cultured marble have found that they can save as much as 12% of resin, fillers and initiators by switching to Interplastic VER products.

Silmar's VER were designed to hold microscopic air and uniformly disburse it throughout the matrix. The tiny air bubbles reduce the amount of resin required to make the same number of parts, thereby reducing the raw material costs. Auto casters have shown to produce the best results but pot mixers have been used with success. Manufacturers typically experience up to 12 percent in total raw material savings by using the VER products.

The micro encapsulated air also makes VER parts lighter. The reduction in overall weight of the parts help to save installation time and be a little easier on the back when placing the finished parts at the job site. Silmar has conducted exhaustive physical testing on products made with its volume enhancing resins and has confirmed excellent performance characteristics.

SIL94BA-1921 Family

Unsaturated polyester resins pre-promoted for room temperature cure with MEK Peroxide. These resins are designed for the production of volume-enhanced marble and onyx composites. Various gel times are available to meet different production processes.

SIL94BA-1921, SIL94BA-1921S, SIL94BA-1921SS, SIL94BA-1921ES



Silmar® Clear Gel Coat Resins

The Gel Coat and Colorant Group makes both clear and pigmented iso/NPG® gel coats for the casting polymer industry. The SIL08LH-70 and SIL08LH-70/S clear gel coats and our pigmented sanitary ware iso/NPG gel coats have been widely accepted in custom and high production cast polymer manufacturing operations. All these products far exceed the ICPA's thermal shock test requirements. In addition, our iso/NPG gel coats for cast polymer parts are Canadian Standards Association-approved.

Heavy metal-free veining colorants and colorants to pigment matrices are available in a variety of popular colors. CoREZYN veining colorants are especially formulated for use in continuous cast machines.