You can prevent PB Sandwich from showing up in the front-end using the pbs_is_editable_by_user filter.

For example, to stop PB Sandwich from showing up in a Custom Post Type identified by the slug slider, you can add this piece of code in your functions.php

add_filter( 'pbs_is_editable_by_user', 'stop_pbs_in_sliders' );

function stop_pbs_in_sliders( $editable ) {
	if ( is_singular( 'slider' ) ) {
		return false;
	}
	return $editable;
}

To stop PB Sandwich for a specific page/post, you can use the post ID to check:

add_filter( 'pbs_is_editable_by_user', 'stop_pbs_for_123' );

function stop_pbs_for_123( $editable ) {
	global $post;
	if ( is_singular() && ! empty( $post ) ) {
		if ( '123' === $post->ID ) {
			return false;
		}
	}
	return $editable;
}