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WACKER GP: Versatile Acetic Silicone Sealant for General Purpose Applications

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WACKER GP is a premier one-component, acid-curing silicone sealant designed for versatile general-purpose sealing. Its unique composition allows it to cure at room temperature, triggered by atmospheric moisture, resulting in a durable and flexible silicone rubber. As an essential player in general-purpose applications, WACKER GP acetic silicone sealant excels in sealing gaps and joints, weatherproofing, and various construction, automotive, and household tasks. Silicone sealants, like WACKER GP, play a pivotal role in ensuring effective bonding, weather resistance, and longevity in various applications, making them indispensable for achieving reliable and lasting seals in diverse settings.

Properties of WACKER GP

WACKER GP boasts a range of exceptional properties that make it a standout choice for general-purpose sealing applications.

Acetic Silicone Composition

WACKER GP's composition as an acetic silicone sealant contributes to its rapid crosslinking capability. This allows it to quickly become tack-free after application, expediting the sealing process and minimizing downtime.

Versatility in Applications

This silicone sealant exhibits outstanding adhesion to various surfaces, including glass, vitrified surfaces, ceramic tiles, selected plastics, and most coatings. Its versatility extends across different industries, making it suitable for a broad spectrum of sealing needs in construction, automotive, and household applications.

Key Physical and Chemical Properties

Non-Sag: WACKER GP's non-sag property ensures that it maintains its shape and structure even when applied to vertical or overhead surfaces. This feature enhances its usability in diverse sealing scenarios.

Ready Gunnability at Extreme Temperatures: The sealant remains ready for gunning at both low (+5 °C) and high (+40 °C) temperatures. This flexibility allows for convenient application in varying environmental conditions, making it adaptable to different project requirements.

Flexible Across Temperature Extremes: WACKER GP exhibits flexibility not only at room temperature but also at temperature extremes, ranging from -40 °C to +100 °C. This wide temperature tolerance ensures that the sealant maintains its effectiveness and flexibility across diverse climates and applications.

General Purpose Applications

WACKER GP's versatility positions it as an ideal solution for a myriad of general-purpose applications across diverse industries.

Construction Industry

Sealing Gaps and Joints: WACKER GP excels in sealing gaps and joints in construction projects. Its rapid crosslinking and excellent adhesion ensure robust sealing, preventing the ingress of moisture and enhancing structural integrity.

Weatherproofing: The sealant's capability to withstand extreme temperatures and weather conditions makes it a reliable choice for weatherproofing applications. It forms a durable barrier against the elements, contributing to the longevity of structures.

Automotive Sector

Vehicle Assembly: WACKER GP plays a crucial role in the automotive sector by providing effective sealing in vehicle assembly processes. Its ready tunability and flexibility contribute to efficient and lasting seals in various automotive applications.

Gasket Sealing: In gasket sealing applications, WACKER GP's non-sag property ensures precise application, maintaining the integrity of gaskets. Its adherence to selected plastics and coatings makes it suitable for diverse automotive sealing needs.

acetic silicone sealant

Household Applications

DIY Projects: WACKER GP finds utility in do-it-yourself (DIY) projects around the house. Whether it's sealing gaps, or joints, or undertaking creative projects, the sealant's ease of use and versatile adhesion make it a go-to choice for homeowners.

Repairs and Maintenance: The sealant is well-suited for household repairs and maintenance tasks. Its flexibility at low and high temperatures ensures reliable seals in various environments, making it an indispensable tool for addressing common household issues.

Advantages of WACKER GP

WACKER GP distinguishes itself with a range of advantages, positioning it as an outstanding option for general-purpose sealing applications.

Exceptional Adhesion and Bonding Strength

With impressive adhesion capabilities, WACKER GP forms robust bonds on diverse surfaces, including glass, vitrified surfaces, ceramic tiles, numerous plastics, and most paints. This heightened adhesion guarantees dependable and long-lasting seals across a broad spectrum of applications, contributing to the enduring quality of sealed structures and components.

Resilience to Environmental Factors

This sealant showcases notable resilience against environmental elements, such as moisture and UV exposure. Its ability to withstand these factors enhances its effectiveness in outdoor and exposed conditions, making it particularly suitable for applications where protection against the elements is critical. The sealant's capacity to endure environmental stressors adds to the durability and dependability of the sealed surfaces.

User-Friendly Application and Tooling

WACKER GP is meticulously crafted for easy application. Its readiness for gunning at both low and high temperatures ensures straightforward and efficient use in various environmental settings. Moreover, the sealant allows for uncomplicated tooling and finishing, guaranteeing a tidy and professional appearance post-application. This ease of application and tooling enhances the overall user experience, establishing WACKER GP as a pragmatic choice for both professionals and DIY enthusiasts.

Application Techniques

WACKER GP offers versatile application techniques, making it suitable for a range of sealing needs across diverse settings, from automotive to residential spaces.

Surface Preparation

To ensure optimal performance, surfaces in contact with the sealant must be meticulously prepared. Substrate areas must be clean, dry, and devoid of loose materials such as dust, dirt, rust, oil, and other contaminants. Non-porous substrates should be cleaned using a solvent and a lint-free cotton cloth, with residual solvent removed promptly with a clean, dry cloth.

Application Methods

WACKER GP provides flexibility in application methods. For cartridge application, the thread is cut open, the nozzle is fixed on top, and it is then cut to the desired bead size. The sealant can be applied in beads or layers, catering to different sealing requirements. Whether using a caulking gun for precision or opting for manual application, the sealant's versatility ensures ease of use in various scenarios, including automotive, marine, caravan, and household applications.

Proper Tooling and Finishing Techniques

Ensuring a professional and effective finish is vital in sealing applications. WACKER GP allows for easy tooling and finishing. Proper tooling techniques, whether using tools or fingers, help achieve a neat appearance and ensure the sealant conforms seamlessly to the substrate. Attention to detail in tooling contributes to the overall effectiveness of the seal, providing a durable and aesthetically pleasing result.

Safety and Handling

WACKER GP prioritizes safety and proper handling to ensure optimal performance and user well-being.

Precautions During Application

During application, users should adhere to safety precautions, including wearing appropriate protective gear such as gloves and eye protection. Adequate ventilation is recommended to minimize exposure to fumes. In case of contact with eyes or skin, prompt rinsing with water is advised.

Storage Recommendations

The product label displays the 'Best use before end' date for each batch. Although storage beyond this date doesn't necessarily render the product unusable, it is crucial to check its properties for the intended use. Proper storage in a cool, dry place away from direct sunlight is recommended to maintain the sealant's efficacy.

Health and Safety Guidelines for Users

Users should follow the health and safety guidelines provided with the product. This includes avoiding prolonged skin contact, ensuring good ventilation during application, and refraining from ingestion. In case of any adverse reactions or uncertainties, users should consult the product's safety data sheet and seek medical advice if necessary.


WACKER GP stands as a versatile and reliable acetic silicone sealant, offering a myriad of advantages for general-purpose applications. With its exceptional adhesion, resistance to environmental factors, and user-friendly application, WACKER GP proves to be a superior choice for sealing gaps, joints, and surfaces across various industries. From construction and automotive to household applications, its flexibility and durability make it an indispensable tool. By prioritizing safety and proper handling, WACKER GP not only ensures optimal performance but also contributes to the longevity and reliability of sealed structures and components. Whether in DIY projects or professional applications, WACKER GP remains a trusted solution for achieving durable and effective seals in a wide range of scenarios.