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I have not kept up with what the heck is going on with all the AQMD formulas in paint but trust my painter. I am currently working on an old house restoration. One portion of the home is remodeled about 15 years ago and all of the molding and doors are painted with oil based paint. I am responsible for the rest of the home, it will gutted and restored. All the molding will be custom milled and doors made to match existing. My question is how make sure the primer will stick to the old fashion oil based paint. Who has good results with the various primers (I like to use a water base product) and paint? My painter swears by Glidden Gripper which I also like for new work, but I have not painted over oil based woodwork in a few years. Any suggestions. Keep in mind I am in Los Angeles where paint formula changes often.