Patch Booster Additive for Gelcoat

Patch Booster Gelcoat Additive is a 3:1 mix that significantly improves the application, appearance and longevity of gelcoat patches.

Product comes in a 1 Quart Can



Patch Booster is an additive you mix into gelcoat at a 3:1 mixture that improves gelcoat characteristics and allows for a better patch.

Patch Booster

  • Allows for a Faster Cure
  • Increases the hardness of the patch
  • Provides a superior Gloss
  • Decreases “halo” effect
  • Promotes an increased durability.

With Patch Booster, you can safely thin your gelcoat to allow for spraying without compromising color. Patch Booster also means you don’t need to add Sanding Aid or “Wax” to your gelcoat, as it provides a tack-free finish.


NOTE: Gelcoat still needs MEK-P Catalyst mixed at the recommended ratio of 1.5% to 2% by volume.


  1. Charlie Norris

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