is your garage door wooden panel type or metal type (clopay)?
Q.
p.s. if it's wooden, it's best to either use a heat gun and use a delicate/detailed contour paint scraper, like this:
http://www.hardwarestore.com/contour-scraper-kit-646946.aspx
alternatively, you can use chemical stripper also but make sure (a) you get lots of air/ventilation, and (b) get extra for it will dry out far sooner than you paint starts to peel.
Once you finished with chemical stripper, wipe it down with a damp rag to raise the wood fibre pores. Then sand it (or whatever you like to achieve smooth consistent finish). Finish it with 220or 280grit wet/dry paper, and then wipe it down with a tag rag.
Then, use those 2-in-1 (primer in 1) type of exterior grade latex paint. If you can, use roller to achieve consistent texture and result. Let dry for 6 hrs under high heat/dry weather, then apply 2nd coat.
2 coats and you'll are fine.
BTW: interior latex paint differ from exterior type by means of (a) exterior contains lots of UV inhibitants within; and (b) 100% acrylic latex exterior paint typically comes with elastomers to keep the paint skin "flexible", to handle the extreme weather (thermal expansion). |