Caulk Parts of extended and deep cracks. Utilize a tiny bead of caulk, smoothing it out well. Wait around to dry completely just before sanding. Then work it in to the grain, corners and crevices. Endeavor to Mix the glaze so that you don’t end up having streaks. Utilize a https://paintingthepastuk.co.uk/products/wood-paint-grey-no-9