Urea Formaldehyde resins require acid or acid forming hardeners to change from a liquid to a solid in the adhesion process. Borden K10 is used to achieve this by separate application method; in other words, it is not mixed with the resin There are three ways in which it can be used:
Method 1 - Coat K10 onto one surface and allow to dry for about 30 minutes or longer. Apply liquid UF resin to the other surface & press within the maximum closed assembly time (see resin chart for details).
Method 2 - Coat K10 onto one surface & allow to dry fully. The liquid resin can be subsequently applied to the same surface. The joint must then be assembled & pressure applied within the maximum closed assembly time (see resin chart).
Method 3 - Coat K10 onto one surface & liquid resin onto the other. Allow both surfaces to dry for about 15 minutes, dependant on ambient temperature & humidity conditions. Then assemble & press.
Some timbers (particularly light-coloured hardwoods) can discolour under acid conditions. This dyestuff may develop slowly over a period of weeks. New timbers should be tested before use & any overspill of hardener away from joint should be avoided.
Available in 1 litre or 5kg pack sizes.
K10 is a colourless liquid.
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