Spabond 540 Modified Epoxy Adhesive n Long working times for bonding large polyester and epoxy parts n Exceptional impact toughness & peel strength n Excellent bond to polyester & epoxy substrates n Low exotherm & shrinkage in thick bondlines n Sag resistance of up to 30mm on a vertical surface n Available with a range of hardeners, from Fast to Extra Slow n Resin and Hardener pigmented to give a visual indication of mix quality n RINA approved as a structural adhesive for pleasure yachts Introduction Spabond 540 is a modified ambient curing epoxy adhesive designed for bonding polyester or epoxy laminates. The Adhesive system is available with two resins; Spabond 540 resin is designed for larger gaps up to 30mm and Spabond 540LV for bondline <20mm. Spabond 540LV is available in drums, pails and cartridges. The high toughness and excellent gap filling properties make this adhesive ideal for stringers/bulkheads, frames and hull-to-deck joints on medium to large production boats. PDS-Spabond 540-4-0113 1

deally Spabond 540 should be used between 15 and 25°C and below a relative humidity of 70%. The handling / processing & mechanical properties of the adhesive are likely to be affected outside of these processing conditions. Surface Preparation Ensure that polyester / epoxy laminates are fully cured before bonding, then prepare as described below: Peel-plied surface - To achieve the optimum bond strength it is recommended to use a nylon peel ply. This will provide a clean, contaminant-free textured surface, suitable for secondary bonding Alternatively abrade the surface as detailed in the section...

:" Depending on bondline thickness & ambient temperature

+ Peel plied finish, all samples failed within the laminate "Please note: Cured properties of Spabond 540 and Spabond 540LV are the same when combined with the relevant hardeners.

The following points must be considered 1. Skin contact must be avoided by wearing protective gloves. Gurit recommends the use of disposable nitrile gloves for most applications. The use of barrier creams is not recommended, but to preserve skin condition a moisturising cream should be used after washing 2. Overalls or other protective clothing should be worn when mixing, laminating or sanding. Contaminated work clothes should be thoroughly cleaned before re-use. 3. Eye protection should be worn if there is a risk of resin, hardener, solvent or dust entering the eyes. If this occurs flush the...

Transport & Storage The resin and hardeners should be kept in securely closed containers during transport and storage. Any accidental spillage should be soaked up with sand, sawdust, cotton waste or any other absorbent material. The area should then be washed clean (see appropriate Safety Data Sheet). Adequate long term storage conditions will result in a shelf life of two years for both the resin and hardeners. Storage should be in a warm dry place out of direct sunlight and protected from frost. The temperature should be between 10°C and 25°C. Containers should be firmly closed. Hardeners,...