To Prime Or Not To Prime That Is The Question????
09-22-2016, 09:54 PM
#1
To Prime Or Not To Prime That Is The Question????
Okay-exhaust manifolds are off my 66 to be painted with CF Archives suggested Seymour Cast Blast which should give me my desired original cast iron (not silvery) color. They are now in for media blasting. Google And CF Archives search have reveal some have used high temp primer and others say NO primer will hold up to heat. Also primer will give you a smoother paint finish which I really am not in favor of compared to the original cast unfinished ruffer look. Those of you that have successfully gained long term manifold painting results advise me to do????. I really, really don't want to screw this project up. THANK YOU for your consideration and advice
09-22-2016, 10:08 PM
#2
Safety Car
Member Since: May 2007
Location: Indiana
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No primer imo.
09-22-2016, 10:27 PM
#3
Team Owner
09-22-2016, 10:34 PM
#4
Race Director
Don't use the other one.........unless it it heat rated at over 1000F.Most folks are very satisfied with the POR.
Larry
09-22-2016, 11:03 PM
#6
09-22-2016, 11:10 PM
#7
Race Director
According to the Seymour website, their Cast Blast is rated at 250F. Now you may be referring to a High Temperature or Header Cast Blast or something similar, but your original post simply said Seymour Cast Blast.
You need to be more specific in your description or provide a Part Number.
The POR has a lot of happy followers.
You can select what you which.
Larry
09-23-2016, 12:02 AM
#8
Drifting
As Larry sez , Cast Blast "Original" is good for 250F ... part # 16-048 aerosol.
Cast Blast also makes a "High Temp" version rated at 1,200F ... part # 16-2668 aerosol.
Regardless whether you use High Temp Cast Blast or POR 15 High Temp #4418, DO NOT prime first. I am not aware of any primer that is rated over 1,000F. Fyi, Bill
Cast Blast also makes a "High Temp" version rated at 1,200F ... part # 16-2668 aerosol.
Regardless whether you use High Temp Cast Blast or POR 15 High Temp #4418, DO NOT prime first. I am not aware of any primer that is rated over 1,000F. Fyi, Bill
Last edited by NightshiftHD; 09-23-2016 at 12:06 AM.
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Bluffman (09-23-2016)
09-23-2016, 12:13 AM
#9
As Larry sez , Cast Blast "Original" is good for 250F ... part # 16-048 aerosol.
Cast Blast also makes a "High Temp" version rated at 1,200F ... part # 16-2668 aerosol.
Regardless whether you use High Temp Cast Blast or POR 15 High Temp #4418, DO NOT prime first. I am not aware of any primer that is rated over 1,000F. Fyi, Bill
Cast Blast also makes a "High Temp" version rated at 1,200F ... part # 16-2668 aerosol.
Regardless whether you use High Temp Cast Blast or POR 15 High Temp #4418, DO NOT prime first. I am not aware of any primer that is rated over 1,000F. Fyi, Bill
09-23-2016, 09:16 AM
#10
Melting Slicks
I used some low priced stuff from Ace hardware store. The key is to make sure that you send the wife to the beauty shop for a few hours, and bake the manifolds in the oven as detailed in the instructions (first at low temp, cool, then at high temp.)
Mine have lasted for a few years so far without any signs of failure.
Mine have lasted for a few years so far without any signs of failure.
09-23-2016, 01:29 PM
#11
I used some low priced stuff from Ace hardware store. The key is to make sure that you send the wife to the beauty shop for a few hours, and bake the manifolds in the oven as detailed in the instructions (first at low temp, cool, then at high temp.)
Mine have lasted for a few years so far without any signs of failure.
Mine have lasted for a few years so far without any signs of failure.
09-23-2016, 02:27 PM
#12
Race Director
Member Since: Apr 2015
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I've used stove paint and steam radiator paint for years. Cheap and lasts forever.
09-23-2016, 03:05 PM
#13
Melting Slicks
These pics where taken after 4 years and around 20,000 miles later. Use as directed and it not only looks good but will last! 
Gary
09-23-2016, 03:15 PM
#15
Team Owner
09-23-2016, 03:39 PM
#16
Team Owner
09-23-2016, 05:43 PM
#17
Melting Slicks
Maybe I'm lucky but, I've baked lots of parts over the years and I've never had it linger much more than a few hours.
Gary