I’m finishing an outdoor wooden bench using a Fuji Mighty Mite 4 HVLP sprayer and a 1.8 N/N set. Yesterday I sprayed a coat of water based Kilz primer thinned about 15% and everything went as planned. This morning I lightly sanded it and started spraying my finish coat with Sherwin Williams Duration acrylic latex also thinned about 15%. No matter how I adjusted the gun the paint was splattering for lack of a better term. The only spraying recommendation on the can was for using an airless setup with a 1.3 - 1.9 NN.
I’m guessing that I still need to thin the product more but wondered if there's something else that I overlooked.
Thanks for any help you can offer.