Twin Air Bio Sealant / Grease 100mlBiodegradable Sealant to be used on the sealing ring of a foam Replacement Air Filter while riding in very extreme conditions. With a filter that is properly and evenly oiled, including the foam sealing ring, this new paste like sealant product stops any debris from passing through the foam filter at the contact point on the airbox. Easily cleaned with Twin Air BIO Dirt Remover or Twin Air Liquid Dirt Remover.