Epoxy resin for high thickness castings and encased objects

Epoxy resin for high thickness casting. Suitable for the encasing of wood and metal objects.

This resin is suitable for casting of 3 cm to 4 cm and up to 10 cm in thickness. It can be successfully used to encase objects beacuse it offers a low heat curing reaction and a low yellowing. This product was developed for professional users and manufacturers.
This resin is formulated for high thickness applications in castings, molds, and with encased objects. Because the resin has a low heat curing reaction, it allows materials like wood and metal to be inserted in one application to create a unique sensation of depth. Using this resin as a finish to a variety of surfaces offers a unique decorative option that results in exclusive products with a glossy and seamless surface. The resin can also be used as a thick glaze over tables and other high use surfaces as required in commerical projects.

The cured high thickness resin is also very resistant to yellowing because the materials in the formulation do not become oxidized after exposure to UV rays. As a result, products finished with this resin can be placed in exterior environments.

The Cromas resins were scientifically developed to feature these professional characteristics:
• A Low Viscosity and is Balanced – the material is self-leveling at low thickness
• A high resistance to Carbonation – the reaction of the resin hardener with the air and humidity that can cause defects in the surface
• Resistant to UV rays and is Low Yellowing – it is suitable for outdoor use
• Calculated Mass Effect – the temperature rise of the curing resin – tested on common furniture surfaces used in interior design
• The durability of the cured resin allows for sanding and polishing of the surface

Epoxy resin for high thickness castings and encased objects.
Because this resin has a low heat curing reaction, it allows the inserting of many different materials into the resin. The main advantage is a very low risk of thermal expansion of the inserted object. To have a successful application of this resin, the room temperature must be around 25° C. If the area is not at this temperature, we advise to warm the working area first. It is recommended to pour the high thickness resin into non-stick molds.
General and important information about resin application techniques
After 7-10 days from the application, the surface is completely hardened and it looks like clear glass. Then the product can be cut, shaped, sanded and polished with the same ease as Plexiglas and plastic.

After the high thickness resin has fully hardened, it can be polished. When polishing, it is important not to heat the resin surface too much with the polishing machine. An excessive amount of heat from polishing can lead to a temporary softening of the suface, and making it harder to polish. This problem can be solved through the application of clear acrylic after sanding with a 500/1000 grit sandpaper.

For applications with inserted objects such as untreated wood with open pores, it is necessary to seal or insulate the material first. It is also important to seal any other object that may have a small pore in the surface. As an alternative to water-based or solvent-based insulation products, Cromas has developed a 100% epoxy resin with high viscosity and good sealing function. For best results, apply 1 or 2 layers of this solution with a brush or spatula. Sanding between layers for good adhesion. If the wood material is not insulated, air bubbles will rise up and remain visible in the resin. And when the resin is hardened, the bubbles cannot be removed.

To have a successful result when pouring on flat surfaces, carefully level the surface before pouring. If the mold is not level, the finished surface will not be level.

The working and curing times of the high thickness resin are longer compared to other resins. To reduce this time, we advise to work at a temperature between 25°C and 30°C. We advise against applying this resin over thin surfaces, because the drying time will increase and some superficial imperfections may appear. .


It is important that the work environment, the molds, and the objects to be encased are kept in a warm area, especially during winter. The recommended temperature is 25°-30°C and the temperature should remain the same during the hardening time. At lower temperatures, the curing time increases and some imperfections may appear on the surface. It is advised not to store the resin in a cold area during winter.

It is also suggested that the surface material, the encased items, and the working environment not be humid. This is because too much moisture in the air or in the encased items can react with the mixture and cause defects and a non glossy surface. In order to assure the resin has good resistance to Carbonation, it is important that the working environment and items to be encased are moisture free.

Why pre-production testing are important
When using the Cromas Paints professional resin for high thickness castings, it is possible to achieve beautiful results. The application process of casting, self-leveling, or encasing objects in epoxy resins is not difficult, but our experience tells us that it is necessary to proceed with testing, to develop your standardized application process especially if there is no previous experience with resins. Cromas Paints goal is to give you the most useful information so your projects are successful. The provided information comes from our direct experience. Because there are many factors to consider, we always advise to proceed with product testing in a controlled working environment and using the same materials or products.

If you have any other question feel free to ask us, by the form or at info@special-paints.com

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