Multilayer golf ball with a thin thermoset outer layer

A golf ball comprising:

• a center comprising a first resilient rubber-based component comprising a first base rubber and a first crosslinking agent present in a first amount of about 15 to about 25 parts per hundred parts of the first base rubber;
• an outer core layer disposed about the center to form a core comprising a second resilient rubber-based component comprising a second base rubber and a second crosslinking agent present in a second amount of about 30 to about 38 parts per hundred parts of the second base rubber, wherein the second amount is greater than the first amount by at least about 5 parts per hundred;
• an inner cover layer disposed about the core having a hardness of about 65 to about 80 Shore D;
• and
• an outer cover layer disposed about the inner cover layer having a hardness from about 30 to about 60 Shore D.

A golf ball comprising:

• a center comprising a first resilient rubber-based component comprising a first base rubber and a first crosslinking agent, wherein the first crosslinking agent is present in a first amount;
• an outer core layer disposed about the center to form a core comprising a second resilient rubber-based component comprising a second base rubber and a second crosslinking agent, wherein the second crosslinking agent is present in a second amount that is greater than the first amount by at least about 5 parts per hundred, wherein the second amount is from about 30 to about 38 parts per hundred parts of the second base rubber, and wherein the second resilient rubber-based component has different physical properties than the first resilient rubber-based component;
• an inner cover layer disposed about the core comprising a material having a first Shore D hardness and a flexural modulus of at least about 65,000 psi, wherein the inner cover layer comprises an ionomer resin comprises at least about 16 percent acrylic or methacrylic acid;
• and
• an outer cover layer disposed about the inner cover layer formed from castable reactive liquid material and having a second Shore D hardness less than the first Shore D hardness.