SikaForce-840 L07, 2-Part Polyurethane Structural Elastic Adhesive, Interior & Exterior, Black
SIKA
Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.
Read more| Structural elastic 2-component polyurethane adhesive SikaForce-840 L07 is a flexible, structural 2-component polyurethane adhesive, which cures at room temperature. It is designed for bonding composite or coated metal components with stable properties over large temperature span. The adhesive is characterised by fast curing and strength build-up. While uncured, it has very good non-sag and compressibility behavior.
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PRODUCT BENEFITS
UsageSikaForce-840 L07 is suitable for structural elastic bonding of composites (e.g., CFRP, GFRP) or coated metals in transportation and general industry.This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility. Packaging
SikaForce-840 L07 (A+B)
SikaForce-840 L07 (A)
SikaForce-840 (B)
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Typical Product Data
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Technical Information CURE MECHANISM SikaForce-840 L07 cures by chemical reaction of the two components at room temperature. Higher temperatures accelerate the cure rate and decrease the open time. High humidity reduces the open time as well. In big bead applications, the generated exothermic heat of reaction can speed up the cure, reducing working and handling times. After the open time is reached, the cure reaction proceeds very fast and the viscosity will increase significantly within minutes. CHEMICAL RESISTANCE In the view of potential chemical or thermal exposure, it is required to conduct a project related testing. | |||||||||||||||||||||||||||||||||||
Application Information Surface Preparation Surfaces must be clean, dry and free from grease, oil and dust. Additional surface treatment depends on the specific nature of the substrates and is crucial for long lasting bond. All pre-treatment steps must be confirmed by preliminary tests on original substrates considering specific conditions in the assembly process. Application Cartridge: Extrude adhesive without mixer to equalise the filling levels. Attach the mixer and dispose the first few cm of the bead prior to the application. If SikaForce-840 L07 is dispensed from dual cartridges, it is recommended to use a pneumatic or electric piston gun. SikaForce-840 L07 can also be processed from pails with adequate 2-component equipment. If dispensed with 2-component equipment, the mixer needs to be tailored for the specific application. For advice on selecting and setting up a suitable pump system, contact the System Engineering Department of Sika Industry. Removal Uncured SikaForce-840 L07 may be removed from tools and equipment with Sika Remover-208 or another suitable solvent. Do not use solvents on skin. STORAGE CONDITIONS SikaForce-840 L07 has to be kept between 10 °C and 30 °C in a dry place. Do not expose it to direct sunlight or frost. After opening of the packaging, the content has to be protected against humidity. |