How soon after paving should I seal the asphalt? A How soon after paving should I seal the asphalt? Asphalt sealing is not required. Please note that sealing the asphalt will void all warranties. Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Notify me of new posts by email.