4 OZ Gasket Remover, Low VOC Formulation Combines Powerful Gasket Remover Strength With An Innovative Delivery System, Fast Foaming Action Penetrates The Most Stubborn Or Baked On Gaskets In 15-20 Minutes, Built In Brush Tip Was Designed For Easy Application & Allows For Scrubbing On Intricate Surfaces, Product Is Not Recommended For Use On Silicone Gaskets, Level 2.