Any generic paint primer should work fine, but consider getting a wood primer if your object is wooden so that any cracks in the wood are properly filled in.
This will be different than the paint you use for your top coat. Your top coat should have a flat or matte finish, which appears more saturated than semi-gloss or satin. [7] X Research source Additionally, the top and base coats should be contrasting colors, such as eggplant and aquamarine.
Crackle medium is more expensive than school glue, but both options typically provide good end results.
Use a spouncer brush to sponge-paint the top coat if you want spider web-like cracks. [13] X Research source
You can purchase aging dust at craft stores and online.
Follow the sealant drying instructions before using the item. If your item is something that will be touched less often, such as a piece of wall art, consider going without the sealant. This will play up the distressed look.