Landscaping designers love the flexibility of custom creations for hardscape (the man-made features used in landscape architecture). Our customers are loving the creative options available to them from the use of Polytek liquid rubbers for molds to create custom hardscape products that meet specific wants and needs of high-end landscaping companies.

By creating custom molds, concrete can be poured into the rubber molds to create pavers, stepping stones, patio stones, rock face liners, fire pits, retaining wall block, pier and wall caps and more. Durability and longevity of investment are key with these products, as these two-part, room temperature curing systems provide a flexible mold solution that can be used to cast hundreds of parts in the mold’s lifetime.

Let’s take a look at a few of the liquid mold recommendations from Polytek for hardscape product creation.

Poly 74-20 Liquid Rubber is especially popular for models with deep, irregular undercuts (like wall stones and steps).

Poly 74-20 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a yellow, Shore A20 rubber. This is the softest rubber in the Poly 74-Series line of polyurethane mold rubbers. Poly 74-20 is a pourable rubber, but it can be easily thickened with PolyFiber II Thickener for brush-on application.

Poly 74-45 Liquid Rubber is popular for multi-cavity molds.

Poly 74-45 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a yellow, Shore A45 rubber. This is a pourable rubber, but it can be easily thickened with PolyFiber II Thickener for brush-on application.

Poly 75-70 Liquid Rubber is popular for pavers and stepping stones with minimal undercuts.

Poly 75-70 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a gray, Shore A70 rubber. This is a pourable rubber, but it can be easily thickened with PolyFiber II Thickener for brush-on application.

A Few of The Benefits of Choosing Poly 74-Series Rubbers (Flexible, High-Strength, Polyurethane Mold Rubbers)

• Make durable, long-lasting molds owing to strength and elongation properties of cured rubber
• Pourable liquid rubbers that cure to soft to mid-range hardnesses
• Easily thickened for brush-on applications
• No release agents needed when casting many plasters, waxes and concretes
• Low-viscosity liquid rubbers capture detail from intricate masters

Poly 74-Series Liquid Rubbers consist of two parts (A and B), which, after mixing, cure at room temperature to high-strength, flexible mold rubbers. Poly 74-Series Rubbers make durable, easy-releasing molds for casting plasters and waxes without release agents. Additionally, when Poly 74-Series molds are properly prepared, they are excellent for casting concrete and various resins, such as epoxy, polyester, polyurethane and acrylic.

Are you ready to explore the possibilities of creating custom hardscape products by using liquid mold rubbers from Polytek? You can explore the line of products from Polytek that we carry here. If you have questions or are looking for specific product recommendations, call our experienced sales team (toll-free) at 800-220-1966 or email us at sales@chemical-concepts.com. We’ll be happy to help!