Ottoseal M 361, art.-no. 13114

Ottoseal m 361 – Structural Hybrid Sealant for Professional Building and Joint Sealing

Ottoseal m 361 is a modern structural hybrid sealant developed specifically for demanding applications in building construction. It is ideally suited for building connections, expansion and joint sealing, as well as repair work in both interior and exterior areas. Thanks to its innovative hybrid polymer technology, this sealant offers clear advantages over conventional acrylic products and enables efficient application combined with high quality and long-term durability.
With its fine-grain, plaster-like texture, the material blends visually and seamlessly into façade and wall surfaces. One of its key benefits is its early paintability, which is possible after approximately four hours depending on weather conditions. This saves valuable time on site and allows multiple work steps to be completed in a single visit. At the same time, the sealant cures almost shrink-free and remains permanently elastic, significantly reducing stress within the joint.

Advantages of Ottoseal m 361 Compared to Acrylic Sealants

Unlike traditional acrylic sealants, this product stands out due to its high elasticity and a movement accommodation of up to 25%. This allows structural movements to be reliably absorbed without cracking or detachment. This is a major advantage, especially on sensitive substrates such as insulating plasters or softer building materials, as less tensile stress is exerted on the joint edges.
Another key benefit is its wide range of applications. Whether for window and door connections, drywall construction, façade joints, or transitions between different materials such as concrete and wood, this hybrid sealant provides reliable and long-lasting sealing. It can also be applied on slightly damp substrates in wall areas, offering additional flexibility on construction sites.

Ottoseal m 361 – Key Properties at a Glance

• Textured, grainy surface with plaster-like appearance
• Paintable and ideal for painting and renovation work
• Movement accommodation up to 25%
• Shrinkage- and bubble-free curing
• Permanently elastic and low-stress
• Suitable for interior and exterior applications
• Temperature resistant from -40°C to +90°C
• Suitable for RAL-compliant installation of windows, doors, and gates

Areas of Application and Uses

This sealant is commonly used for building connections such as window frames to façades, doors, gates, or staircases. It is also suitable for high-rise expansion joints in accordance with DIN 18540-F, as well as joints in façades, metal construction elements, and precast concrete or aerated concrete components. In painting and maintenance work, it is ideal for filling cracks and holes in interior walls and façades.
In conclusion, Ottoseal m 361 is a high-performance solution for professionals who value efficient application, high elasticity, and a clean, structured finish. Thanks to its combination of modern hybrid technology and versatile application possibilities, this sealant is a reliable choice for professional use in construction and renovation projects.