Gravicol is a versatile, Lloyd's approved solution for thin joint bonding, specially designed to cater to the assembly of composite parts. Ideal for working with a range of materials such as suitable polyurethane foam and Balsa wood, this bonding paste is engineered to fulfil multiple functions, including gap filling, surface filling, and sealing, making it a comprehensive tool for composite assembly tasks.
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Notably, it also serves as a laminating aid, broadening its utility in various bonding applications.
Featuring a user-friendly formulation, this pre-accelerated bonding paste is based on unsaturated polyester resin and is ready to use straight from the container. It initiates curing at room temperature (15 - 25°C) when mixed with the correct dosage of MEKP peroxide, typically between 1% and 2% w/w, under standard workshop conditions.
The product includes a catalyst indicator that changes color, ensuring proper mixing and application. For optimal results, surfaces should be prepped through light abrasion or sanding and cleaned with an appropriate solvent to enhance bond adhesion strength.
The product's physical properties are impressive, with a viscosity range of 3,000,000 - 4,000,000 and a density between 1.28 - 1.34, making it ideal for achieving the desired joint thickness of 0.7mm to 5mm. It boasts a shelf life of 6 months when stored correctly, away from direct sunlight and heat sources, ideally at temperatures between 15°C and 25°C. By adhering to these guidelines and allowing adequate time for the bond to cure, users can achieve robust and durable bonding for their composite materials.
