I'm looking for suggestions on the best way to spray POR15 up into the framerails, the rockerpanels and other hard to get at places. Thanks for any suggestions.

Brent

I'm looking for suggestions on the best way to spray POR15 up into the framerails, the rockerpanels and other hard to get at places. Thanks for any suggestions.

Brent

In cavities , Just spray in fish oil as it has a good capillary action , costs less and is tried and proven.

Did a bit of googling...

This was the best discussion I found

http://www.peachparts.com/shopforum/showthread.php?t=59355

I read somewhere that a cheap pump sprayer from Home Depot will do the job if you can get the wand in the cavity. POR has a very low viscosity so it flows right out of the nozzle. I would adjust the nozzle so it is spraying in a cone shape, insert as far as you can, squeeze the trigger and slowly remove the wand. Repeat as necessary.

Don't forget to use Ospho or Metal Ready first. Definately helps with adhesion and wipe up any drips that find their way out immediately and often or you will be grinding.

If you haven't purchased it yet find a body shop supply company in your area. It will save you about 20 bucks in shipping costs.

Great stuff by the way.

John

Edited April 30, 201014 yr by JohnnyO

Thanks for the suggestions guys. Johnny'O, I'll have to give the pump sprayer a try. I didn't realize the POR15 was thin enough to be able to spray like that.

If you have a air compressor and a Harbor Freight in the area

buy a siphon gun I bought mine for about $8.00 I used a length of vinyl hose that I just stuck in the can of POR and the ''gun'' blew the paint all through the rockers and in any cavity . Because there is no cup with paint you can turn the gun side wise or upside down if needed. I attached a lead weight to the hose to keep it from falling out of the can. When done just flush out with lacquer thinner to clean the gun.

Gary

If you have a air compressor and a Harbor Freight in the area

buy a siphon gun I bought mine for about $8.00 I used a length of vinyl hose that I just stuck in the can of POR and the ''gun'' blew the paint all through the rockers and in any cavity . Because there is no cup with paint you can turn the gun side wise or upside down if needed. I attached a lead weight to the hose to keep it from falling out of the can. When done just flush out with lacquer thinner to clean the gun.

Gary

Interesting idea, got any pix of the homemade rig you describe?

If there's already rust inside the framerails, all you're doing is making yourself feel better by spraying POR15 (or any other rust "preventative") inside. You have to physically remove the rust and then apply a rust preventative.

If there's already rust inside the framerails, all you're doing is making yourself feel better by spraying POR15 (or any other rust "preventative") inside. You have to physically remove the rust and then apply a rust preventative.

I disagree here john. I have had a rusty 72 gmc truck frame outside of my poll shed for 8 years. I sprayed it with por15 back then. It still solid and has not shown any signs of further rust damage. Now there was no holes just surface rust mind you.

As far as spraying POR, it CAN be done.

This post:

http://www.classiczcars.com/forums/showpost.php?p=236868&postcount=36

Part of this thread:

http://www.classiczcars.com/forums/showthread.php?t=25865

Addresses the whole discussion.

E

I read somewhere that a cheap pump sprayer from Home Depot will do the job if you can get the wand in the cavity. POR has a very low viscosity so it flows right out of the nozzle. I would adjust the nozzle so it is spraying in a cone shape' date=' insert as far as you can, squeeze the trigger and slowly remove the wand. Repeat as necessary.

[/quote']

Somthing like this? It said flexible wand. Thought that would be useful...

http://www.liquid-ice-melt.com/product_info.php?cPath=23&products_id=44

The syphon spray blow gun is apparently no longer available at Harbor Freight.

Here's a link to the same item at a different store:

http://www.sears.com/shc/s/p_10153_12605_00920333000P?vName=Tools&sName=Specialty+Tools&cName=Air+Compressors+%26+Air+Tools&sLevel=3&sbv=Milton+Industries&sbf=Brand

Same gun, different source/price:

http://www.amazon.com/Milton-S157-Siphon-Blow-Gun-Tubing/dp/B000COTXEI

And a different style:

http://www.drillspot.com/products/39595/gaurdair_corporation_79sg012_syphon_spray_gun

And here's the "everything you wanted to know about blow guns" page:

http://plews-edelmann.com/brochure.cfm?brochure=3026&location_id=3801

E