Thanks for any and all help. I am replacing the glass on several sash windows. I've removed the windows the glass and gotten them very clean of the old putty and paint. I've painted the rebate with PVA and allowed it to dry over night. I am ready with the new linseed putty and brands but I can't get the putty to stick to the wood. This is a first time for me so I must be missing something obvious. How do you get the putty to stick to the rebate? It is just falling off when I apply it. Thanks much!