Kautschuk Gummi Kunststoffe, Vol.56, No.11, 587-589, 2003
An environment friendly process for rubber-to-metal bonding
Rubber-Metal-Components are widely used for antivibration-, sealing- and rubber lining technologies. The production of such components requires normally the use of organic solvents for substrate cleaning, dilution of bonding agents and anticorrosion coatings. This paper refers to alternative cleaning agents and bonding agents which allow a reduction of organic solvents. Waterborne bonding agents have reached the bonding activity of traditional solvent based ones. Bonding tests result frequently into 100 % rubber break. However, adhesion forces might not always reach the highest possible level. Certain combinations of waterborne products have shown advantages in respect to flexibility and fluid resistance of the bond. Market shares of waterborne bonding agents have not yet reached 10 % in Europe. However, it is expected that this will change in 2007 when the European VOC rules. Have to be fully applied. There is no major barrier from the technical point of view.
Keywords:rubber metal bonding;waterborne bonding agents;solvent reduction;VOC legislation;metal preparation