 how to use weld-thru primer |
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| jmitro |
 Feb 12 2016, 11:44 AM
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Senior Member  Group: Members Posts: 713 Joined: 23-July 15 From: Oklahoma Member No.: 18,986 Region Association: None 
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two questions about using weld thru primer, (assuming that proper usage is spraying primer on the backside of two adjoining pieces so that primer covers the bare metal that cannot be accessed once welding is completed);
1. Do you change the weld settings on the welder? It welds terribly with poor penetration. Or do you grind off the primer from the anticipated weld spot? If so, then it's defeating the purpose of weld-thru primer, is it not? it leaves bare metal. 2. After welding is complete, do you grind off the exposed weld-thru primer and replace it with POR-15 or primer of choice? |
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| 914forme |
Feb 13 2016, 07:58 PM
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None
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I use Wurth
 Zinc Rich Weld Through Primer Description 13.53 fl. oz. Aerosol Features - 98 - 99% pure zinc content - Long term cathodic protection for all metallic surfaces - Adheres reliably to all metals - Heat resistant up to 914ºF - DO?NOT apply filler after application - Good electrical conductivity - Special epoxy resin for better adhesion 914 degree heat resistance is why I use it has to be an a sign from the 914 Gods (IMG:style_emoticons/default/smiley_notworthy.gif) |
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Posts in this topic
jmitro how to use weld-thru primer Feb 12 2016, 11:44 AM
bretth My experience with weld through primer has been th... Feb 12 2016, 12:23 PM 76-914 Try putting it on a little thinner. It helps. Feb 12 2016, 01:21 PM
SirAndy Try putting it on a little thinner. It helps.
And... Feb 12 2016, 01:54 PM Elliot Cannon
Try putting it on a little thinner. It helps.
An... Feb 12 2016, 02:45 PM r_towle
[quote name='SirAndy' post='2302214' date='Feb 12... Feb 12 2016, 03:16 PM doug_b_928 From what I have seen, people spray it on what wil... Feb 12 2016, 02:46 PM Bartlett 914 The fumes are from the zinc in the primer. Burning... Feb 12 2016, 03:21 PM r_towle I spray on the primer, then grind off the spot wel... Feb 12 2016, 03:28 PM Jeff Hail The best method is to coat both pieces that face e... Feb 12 2016, 08:35 PM 914forme
The best method is to coat both pieces that face ... Feb 13 2016, 11:20 AM larryM consider this expert advice
Ron Covell advice
... Feb 12 2016, 10:30 PM jmitro :agree:
no doubt! Thank you so much for all... Feb 13 2016, 11:58 AM DirtyCossack I have some brush on stuff that is the king of spl... Feb 13 2016, 07:43 PM |
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