Eliminates the need for screws or rivets, allowing panels to maintain a clean and seamless architectural appearance.
TWEHA 70seven
Powerful universal bonding and sealing – indoors and outdoors
TWEHA 70-seven is a high-performance, one-component adhesive and sealant developed for professional bonding, assembly and sealing applications. Its broad adhesion spectrum makes it suitable for a wide variety of materials, both indoors and outdoors.
The permanently elastic formulation is solvent-free, waterproof, odorless and resistant to mold and bacteria. It cures without shrinkage or cracking and can be painted with most used paint systems. TWEHA 70-seven is also suitable for sensitive materials such as mirrors and natural stone, without attacking synthetic materials or causing staining.
Applications
TWEHA 70-seven provides excellent adhesion to materials including aluminum, stainless steel, copper, zinc, galvanized steel, wood, plywood, hardwood, PVC, polyester, acrylic, concrete, insulation materials and many other common construction substrates.
It can also be applied to slightly moist surfaces and offers a reliable solution for demanding bonding and sealing applications.
Adhesion to powder-coated surfaces and low-surface-energy materials such as PP, PE, bitumen and silicones should always be tested before application.

Designed for performance and efficiency
Engineered for reliable bonding


TWEHA 70-seven is particularly suitable for:
TWEHA 70-seven provides excellent adhesion to materials including aluminum, stainless steel, copper, zinc, galvanized steel, wood, plywood, hardwood, PVC, polyester, acrylic, concrete, insulation materials and many other common construction substrates.
It can also be applied to slightly moist surfaces and offers a reliable solution for demanding bonding and sealing
A complete bonding system
All TWEHA products are part of the Tweha Bonding System. Always refer to the Technical Data Sheets and approved substrate lists for correct system application.
Technical questions
Find quick answers to common technical questions about StoneMate.
70-seven is a universal high-performance elastic adhesive and sealant for professional bonding, assembly and sealing applications.
Yes. It is designed for a wide range of professional interior and exterior applications.
Under typical conditions of 23°C and 55% relative humidity, curing is approximately 2.5–3 mm per 24 hours.
The recommended application temperature is approximately +5°C to +50°C.
No. For bonded ventilated façade cladding, use the dedicated PanelMate, StoneMate, MetalMate or GlassMate system.


More efficient, more economical
Compared to traditional mechanical fixation systems, TWEHA Bonding Systems can reduce installation costs by up to 40%.
Faster installation, fewer components, and no visible fixings result in both economic and aesthetic advantages.