Thank you for all the advice. I am using SW primer and paint. SW told me 1 coat of primer and one coat of topcoat would be fine. They also said I didn't need to sand between coats? The primer went on thin, it did cover well. I'm doing a coat a day, so I'm sure it is completely dry. The more I read about painting exterior doors, the more confused I am, hearing so many different opinions on how to paint. I have painted for 50 years, mostly rooms.
Also, we never use this door, so it's never open. I want the full glass storm door to show off the pop of color.
Thanks again for your response.

did they give you an exterior paint? red is the fastest fading color and something UV blocker should be used. if they gave you interior, latex wall paint,, i'd return it.

Personally I prefer Advance Paint. if doing glossy, it's better than SW. The only SW I'd use is ProClassic, and they don't make a dark base (which your red will require).

are you using a glossy paint? I would do your first coat w/the roller, fine sand w/wet/dry sandpaper (600 grit or higher. wet w/water and lightly, very lightly, sand and knock down any nubs or rough spots). wipe clean. now brush on your second coat w/good 3" purdy or wooster brush. you can thin w/a little water or alkaloid paint extender.

In fact,,,click on this link and scroll down the comments until you see missenigma she has the most detailed info on painting. these are for oak cabs, but your door will be similar. I also added a my own comment further down. (she never came back for the part two!)

[https://www.houzz.com/discussions/painting-honey-oak-cabinets-dsvw-vd~5292087[(https://www.houzz.com/discussions/painting-honey-oak-cabinets-dsvw-vd~5292087)

Beth, the Aura line in BM has an exterior paint that specifically made for doors and is a higher sheen. Dries much faster than the Advance. I thought Advance was only for interior and not advisable for exterior.

OP, rethink that glass storm door. Again fine in the winter but in warmer months it will literally bake the door. You can get storm doors that are fully open so you can see the interior door. Easy peasy to change it to a screen in the summer and still see the pretty red.

I also think the SW store did not give you good advice. No harm in sanding between coats unless you do it so hard that you get burn through. Personally, I would have done two coats of each product and sanding in between. Why, because personal experience has told it always fails when I skip steps.

ETA: Here is a link from Paint Pros on the subject of glass storm doors. Take a look at the pics. All blistery.

http://www.painttalk.com/f6/storm-door-traps-heat-73426/

ETA2: Just looked at the TDS for Aura. It does not dry faster, but is specifically formulated for trim and doors.

Thank you for all your help, tips. I did put 2 coats of primer on, sanding after each. I just rolled the first coat of red. So far, so good! When I opened can of red paint,Show Stopper, I panicked, it was pink! I called SW and they said it would dry red. SW said if it's not what I like, to bring it back and they will give me a new red free of charge. Both primer and paint are exterior paint. I also used a roller with 1/2" nap, it was fine, will see about 2 nd coat. I always use Purdy brushes, the best.
The storm door, I will watch and can always put screen in door. It gets very little sun, lots of big oak and maple trees in yard. A big thank you for your help and time.

Can you post a picture when you are done? I love to see before and afters!

I will post a picture when I'm done. I put 2nd topcoat on today and it still looks dark pink. I've heard that red can take many coats to get it to be a good red. I'm using paint color SW Show Stopper.....I'm beginning to wonder if I'll ever see a true red, if I put another coat on and another.... I have been sanding after each coat with 600 sand paper. I do like paint...Resilience, also had good reviews. Again thanks for your comments,

I just googled Show Stopper. It does look a little on the pinkish side. Are you going for a blood red or something with a hint of orange to it? Color is never easy and I'll never understand why when it is a larger swath, it appears oh so different than we anticipated.

Thank you all for the great help and advice. I finished with 2 coats of primer and 4 coats of red! I am pleased with the color. This picture makes it look red/orange, it definitely is not, it's a pretty true red. We are having trouble installing storm door, because door frame isn't plum! Think we have it figured out and help is on its way! I so appreciate all the advice, a big thank you.

Done! Love it!

Looks great!