Since you are using a cage with screen top, it should be safe, as long as there is no smell from it (that indicates it's still drying). If you made the mistake of applying
it too thickly, it takes "forever" to dry because the outer part of the silicone dries first, sealing the inside & making it harder to off-gas & dry. So if you did that, the
only way I know of to remove it is physically...you'd have to scrape it off.