The link I provided for POR15 has a list of retail dealers near you,you can also email,fax,phone them for that. :hammer:Where can I get the Permates and the POR?
for the price or POR15 why not just have your frame sandblasted? find a company in your are that specializes in painting semi trucks. they will have a sandblast bay that you can literally drive a truck into and a 20 HP sandblaster. a complete frame from the cab back takes about 30 minutes and should cost you no more than 45 bucks to have blasted. take your truck there and have them sandblast the frame down to bare metal. then you are starting off with a known good metal. if there are any problem areas that need to be repaired, its all ready to go. i have seen several toyota frames with small cracks in them right behind the cab that you would never know about if you used POR15. better safe than sorry.
once you have it down to bare metal you can use just about any premium undercoating with good results and still come out ahead money wise.
you sound like you need to get your own opinion. an informed one. try it. tremclad? is that English?not an advocate for por 15 or anything .. but !!!
sandblasting is NOT recommended .. do some reading por15.com .... Tremclad is minimal at best !! not even ! probabaly the worst recomendation for a " keeper"
por15 recommends , just wire brushing off the flakes and brushing it on ..