KongKrete™ LIQUID acrylic polymer

Key KongKrete Performance Features

Designed Specifically for GFRC Production

GFRC places different demands on a liquid polymer than ordinary concrete and masonry applications. High-shear mixing, pumping and spraying can introduce unwanted air into the mix, while thin-section concrete requires excellent toughness, adhesion and long-term durability.

KongKrete is formulated for demanding GFRC production conditions. Its acrylic polymer chemistry modifies the cement matrix while the integrated defoaming package helps control foam and entrained air during mixing.

The result is a versatile GFRC polymer system suitable for both professional production environments and smaller architectural concrete shops.

Why Use KongKrete in GFRC?

Integrated Defoamer for High-Shear GFRC Mixing

High-shear mixers are commonly used to produce GFRC and other high-performance cement mixes. While high shear provides excellent dispersion of cement, pozzolans, pigments and admixtures, it can also cause liquid polymers to generate foam and introduce unwanted air.

Excess entrained air can contribute to pinholes, reduced density, inconsistent surface appearance and reduced concrete performance.

Where KongKrete Works

KongKrete in a GFRC Mix

When designing a GFRC mix, polymer dosage should be calculated based on the amount of polymer solids being added rather than simply the weight of the liquid polymer.

Because KongKrete contains approximately 50% solids, the calculation is straightforward:

The correct polymer dosage depends on the complete mix design. Cement content, pozzolans, total water, plasticizer, fibers, pigments and casting method should all be considered together.

Need a starting mix design? Visit our Concrete Mix Recipes page for Fishstone GFRC and high-performance concrete mix designs.

Performance Benefits Beyond GFRC

Concrete Countertops, Sinks & Furniture

KongKrete is well suited for thin-section architectural concrete where toughness, surface quality, adhesion and durability are important. It can be used in GFRC countertops, sinks, vanities, tables, benches, furniture and other cast concrete products.

Slurry & Face-Coat Mixes

KongKrete can be incorporated into cementitious slurry and face-coat formulations to improve adhesion, toughness, water resistance and workability while helping create a dense finished surface.

Architectural Precast

KongKrete is suitable for architectural panels, cladding, decorative elements and other precast applications where a polymer-modified cement matrix is desired.

Bonding & Repair Mortars

Acrylic polymer modification can improve adhesion and durability in cementitious bond coats, repair mortars, patching compounds and resurfacing materials.

Typical KongKrete Product Characteristics

Typical values are provided for general guidance. Always evaluate the complete concrete mix design and production process before full-scale use.

Freeze/Thaw Stability & Storage

If KongKrete has been exposed to freezing temperatures, allow the material to return completely to normal temperature and thoroughly remix before use. Material that shows permanent separation, coagulation or other significant changes after thawing should be evaluated before use.

Frequently Asked Questions About KongKrete

What is KongKrete Liquid Acrylic Polymer?

KongKrete is a high-performance, water-based acrylic polymer admixture formulated primarily for GFRC and architectural concrete. It modifies Portland cement-based mixes to improve adhesion, toughness, durability, water resistance and workability while providing integrated foam control for high-shear mixing.

What does acrylic polymer do in GFRC?

Acrylic polymer modifies the cement matrix in GFRC and can improve toughness, adhesion, abrasion resistance, water resistance and overall durability. Polymer modification is especially useful in thin-section GFRC products such as countertops, sinks, furniture, wall panels and architectural precast.

How many solids are in KongKrete?

KongKrete contains approximately 50% polymer solids by weight. This means that 10 lb. of liquid KongKrete contributes approximately 5 lb. of polymer solids to a GFRC mix.

Does KongKrete meet PCI requirements for GFRC?

Yes. KongKrete complies with PCI requirements for GFRC applications. This makes it suitable for professional GFRC production as well as concrete countertops, architectural elements and other high-performance cementitious products.

Does KongKrete contain a defoamer?

Yes. KongKrete contains an integrated defoaming package designed to help control foam and entrained air during the high-shear mixing commonly used to produce GFRC and high-performance architectural concrete.

Do I need to add a separate defoamer when using KongKrete?

In many GFRC mix designs, an additional defoamer is not necessary because KongKrete already contains a defoaming package. However, every mix design is different, and producers should evaluate air content and surface quality under their actual production conditions.

Can KongKrete freeze?

KongKrete has freeze/thaw stability for up to three freeze cycles before degradation may begin. For best performance and shelf life, repeated freezing should still be avoided and the product should be stored in a temperature-controlled environment whenever possible.

Can KongKrete be used for concrete countertops?

Yes. KongKrete is especially well suited for GFRC concrete countertops, sinks, vanities, furniture and other thin-section architectural concrete products.

Can KongKrete be used in spray-up GFRC?

Yes. KongKrete can be used in both spray-up GFRC and premix GFRC. Its combination of acrylic polymer modification and integrated defoaming makes it particularly well suited for the high-shear mixing and pumping processes commonly used in GFRC production.

Can KongKrete be used in a GFRC face coat?

Yes. KongKrete can be incorporated into GFRC face-coat and slurry formulations to improve adhesion, toughness, workability and durability while helping maintain a dense finished surface.

Is KongKrete only for GFRC?

No. Although KongKrete is formulated primarily for GFRC, it can also be used in architectural precast, concrete countertops, slurry coats, repair mortars, cementitious bond coats, overlays and other polymer-modified Portland cement formulations.