Composite tools and methods for fabricating composite tools

A method for fabricating a composite part, the method comprising the steps of:

• providing a master mold;
• forming a substructure using dimensions of the master mold;
• forming a low temperature cured resin laminate overlying the master mold, the low temperature cured resin laminate comprising a resin that is cured at a temperature in the range of from about 20 to 90° C. (68 to 194° F.);
• heating and compressing the low temperature cured resin laminate to form a cured low temperature cured resin laminate, the low temperature cured resin laminate heated to a first temperature in the range of about 20 to 90° C. (68 to 194° F.);
• removing the cured low temperature cured resin laminate from the master mold;
• affixing the cured low temperature cured resin laminate and the substructure;
• forming a high temperature cured resin laminate overlying the cured low temperature cured resin laminate, the high temperature cured resin laminate comprising a resin that is cured at a temperature in the range of from about 191° C. to about 226° C. (from about 375° F. to about 440° F.);
• and
• heating and compressing the high temperature cured resin laminate to form a cured high temperature cured resin laminate, the high temperature cured resin laminate heated to a second temperature, wherein the second temperature is higher than the first temperature.

A composite tool comprising:

• a substructure;
• a cured low temperature cured resin laminate overlying the substructure;
• and
• a cured high temperature cured resin laminate overlying the cured low temperature cured resin laminate.