Supercast™ Concrete

How can I repair minor surface scratches in my Supercast™ top?

• After cleaning ALL dust and debris from the top, allow the top to dry. Then spray with SC-SEALER spray sealer. Do a test area first to ensure there is not a reaction. Follow instructions on can for spraying.

• Allow the surface to cure for 24 hours before exposing to water or use

How can I repair my glass fiber reinforced concrete (GFRC) using grout?

Please see attached PDF file for a step-by-step guide to repairing your GFRC. 

How can I return my Supercast™ top to its original appearance?

• First clean using a diluted solution of vinegar and water to remove any dirt or debris that may have accumulated on the surface.

• If the top remains dull, reseal your top with SC-SEALER from The Outdoor GreatRoom Company.

• After cleaning all dust and debris from the top, allow to dry. Then spray with SC-SEALER spray sealer. Do a test area first to ensure there is not a reaction. Follow instructions on can for spraying.

• Allow the surface to cure for 24 hours before exposing to water or use.

How can I touch up my Supercast™ stain?

Instructions for staining Supercast™

1. Clean affected area before attempting to stain. Make sure area is clear of dirt, dust or debris.

2. Use dropper to apply generous amount of stain to exposed Supercast™ material. Only apply stain to exposed Supercast™, stain will not penetrate Supercast™ sealer.

3. Allow stain to soak into the Supercast™ for 30 seconds to 1 minute and use a clean rag to wipe off excess stain.

4. Repeat steps 2 & 3 until desired stain color and darkness is achieved.

5. For larger areas it is recommended to seal the re-stained area with an acrylic based sealer to protect it from the elements. SC-SEALER is available through The Outdoor GreatRoom Company.

What are the maintenance instructions for Supercast™?

To keep your fire table top or outdoor kitchen top looking new, we recommend the following:

• Keep covered when not in use

• Protect tops from harsh weather and direct sunlight if possible with protective cover.

• Minor surface scratches can be removed by re-sealing with SC-SEALER.

• If any colored liquids such as wine or soda are spilled on your top, clean off immediately to avoid possible staining

• We recommend cleaning your top regularly with a mild mixture of dish detergent and warm water; rinse thoroughly

• We recommend sealing your top annually or as needed. If the top begins looking dull, clean and reseal with SC-SEALER. All tops are sealed initially with solvent-based sealers. A solvent-based sealer will accentuate colors and produce a glossier surface compared to a water-based one.

What can I do to maintain the Supercast™ finish?

Keep the top clean do not allow dust, dirt, water to stand on the top. Your top is very similar to your kitchen counter except for outdoor use. Use a mild mixture of dish detergent and warm water.

• Do not put the cover on when the table is wet.

• Cover the unit to protect from buildup of water, snow, dust, dirt, and debris.

• Ensure the top is dry prior to covering for an extended period.

What is Supercast™?

Supercast™ is a proprietary blend of fiber glass and polymer fortified concrete. We offer a variety of colors and finishes. 

What makes a concrete top unique?

Your top is handcrafted from Portland cement concrete and reinforced with glass fibers to provide exceptional strength and durability compared to traditional concrete. Supercast™ is typically 1/3 of the thickness of traditional concrete with 3 times the strength. Each piece offers its own uniqueness; you may notice color variations in your fire table top or outdoor kitchen countertop. This is intentionally done during the molding process in order to create a unique natural appearance which mimics natural stone. One factor that may slightly affect coloration is thickness. On fire pit table tops, the burner cover may appear slightly different than the rest of the top due to the difference in thickness.

Due to the physical properties of concrete, small hairline cracks may appear in the surface over time. This is normal and does not affect structural integrity of the top. If cracking is severe or deep, repair or replacement may be required. A minimum of two coats of solvent-based acrylic sealer are applied during the manufacturing process. Because of varying porosity in concrete sealer, it may be absorbed differently throughout the top. Due to this you may notice varying luster.

Why is there pitting in Supercast™?

As a result of the casting procedure, air becomes entrapped within the Supercast™ mix and on the surface of the molding material. Supercast™ uses a high cement to water mix ratio; this creates a very thick, dense composition making it difficult for trapped air to escape. Thorough processes are incorporated into the casting process in order to minimize the number of pits visible on a finished Supercast™ piece. Plasticizer additives are used in the Supercast™ composition in order to create a more fluid mixture without increasing the percentage of water, as water decreases the strength of the composition. Agitation of the piece is also performed during the process to allow trapped air to escape.

While the composition and casting process is designed to allow air bubbles to escape, surface tension on the surfaces of the piece prevent a small percentage of smaller air pockets from releasing. The pitting is an inherent component of casting Supercast™. The presence of pitting does not compromise the durability or strength of the piece but adds to the distinctive look.