Liquid RTV-2 Silicone Rubber for Moldes para concreto

Built for stone texture molds, decorative concrete, GFRC form liners, countertops, and architectural castings.

Tell us your casting type, mold size, surface texture and production goal！

For Buyers Making Moldes para concreto — Not Buying Finished Molds

We supply liquid RTV-2 silicone rubber for customers who use silicone to make concrete molds, not ready-made concrete mold products. If your project involves stone texture, decorative concrete, GFRC, form liners, countertops or repetitive casting, we can help screen a more suitable silicone grade before sampling.

Built for Real Concrete Mold Making Aplicativos

Stone Texture & Decorative Concrete Panels

For projects where surface clarity directly affects the visual value of the finished concrete part.

Why buyers care: clean texture transfer and more practical mold life.

GFRC/GRC Form Liners & Architectural Elements

For façade panels, trims, shaped sections, and decorative architectural components.

Why buyers care: larger molds need better stability and more controlled demolding.

Concrete Countertops, Sinks & Custom Surfaces

For edges, basins, negative forms, and custom shapes.

Why buyers care: release quality and edge detail affect finishing time and final appearance.

Repeat Casting, Form Liners & Concrete Stamps

For projects where consistency matters from trial runs to repeated production.

Why buyers care: buyers want a grade that supports more predictable repeat use.

How to Choose the Right Silicone for Concrete Molds？

For concrete mold making, the right silicone grade is not only about Shore A hardness.

It also depends on:

Project Type	Suggested Shore A	Why Buyers Choose It
Fine texture/lighter castings	20–25	easier detail capture and practical flexibility
General decorative concrete molds	25–30	balanced durability and release performance
Larger molds/deeper texture/heavier stress	30-40	better structural support and longer service life potential

Why Concrete Mold Buyers Work with Us？

15+ Years in Liquid RTV-2 Silicone Manufacturing

We focus on liquid RTV-2 silicone production and understand that concrete mold projects require more than generic mold-making claims.

Application-Based Grade Recommendation

We do not recommend a grade based only on hardness. We look at mold size, texture complexity, demolding stress, and repeat-use expectations.

Better Fit for Decorative & Architectural Concrete Work

Suitable for customers making stone texture molds, GFRC liners, countertops, custom surfaces and other concrete casting molds where detail and release both matter.

From Trial Evaluation to Bulk Supply

We support sample testing, technical discussion, and bulk supply planning for customers moving from development to repeat production.

Technical documents and suitable grade suggestions can be shared based on your mold type and project requirements.

A Practical Note for Concrete Mold Performance

Concrete mix design affects both demolding behavior and practical mold life. Projects with sharper edges, deeper texture or more abrasive concrete systems can place more stress on the mold surface. That is why grade selection and release practice both matter when repeat casting consistency is important.

If needed, we can discuss your mold structure, casting type and release approach before recommending a trial grade.

What Serious Buyers Usually Want to Confirm Before Sampling

Before moving into sample testing, buyers usually want to confirm a few practical points first.

DETAIL TRANSFER

Will the silicone capture fine surface detail clearly?

Important for stone, decorative and texture-based molds.

DEMOLDING

Will demolding be manageable in repeated use?

Important for molds with deeper patterns, edges or heavier handling stress.

GRADE FIT

Can the supplier recommend a more suitable grade before testing?

Important when buyers want to reduce trial-and-error and move faster toward a usable sample.

SUPPLY

Can supply continue if the project moves into repeat orders?

Important for customers who plan to move from sample testing to regular procurement.

Capacidade da fábrica

Criado para Fornecimento estável - Não apenas um pedido de amostra

For concrete mold buyers, product fit is only part of the decision.
Supply stability, production consistency, and technical communication also matter when a project moves from testing to repeat casting.

We support customers with:

Você pergunta, nós respondemos

Perguntas que os compradores geralmente fazem antes de fazer o pedido

How do I choose the right Shore A hardness for concrete mold making?

Softer grades are often easier for detailed textures and more complex demolding. Higher Shore A grades are usually considered for larger molds, deeper textures, or heavier demolding stress.

Is pour-on or brush-on silicone better for making concrete molds?

That depends on the master pattern, mold size, and surface shape. Pour-on systems are often used for simpler setups, while brush-on systems can be more suitable for vertical or more complex surfaces.

Will the silicone mold work for repeated concrete casting?

It can, but practical mold life depends on the concrete system, mold design, texture depth, release practice and demolding conditions.

That is why correct grade selection matters early.

Do I need a release agent when casting concrete in silicone molds?

In many repeat-casting situations, good release practice can help protect mold detail and support cleaner demolding, especially in more abrasive systems.

Start with the Right Silicone for Your Concrete Mold Project

Tell us what you cast, your mold size, the surface texture, and whether your project is for decorative concrete, GFRC, countertops, or repeat production.

We will recommend a suitable silicone grade and share the relevant technical information.