life after epoxy

S

stephen44

so my truck cab has been in epoxy for 2 months - I work slow

so now i am doing some filler work .. I am scuffing the epoxy first and then shaping and then filling...so far so good.

At my speed i know it will be months before this section gets any other attention - so I want to re-epoxy this area.

Am i best to brush paint on the epoxy to cover the filled area - or am i best to scuff a wider area and mask and spray some more on ?.

eventually I will be scuffing - applying 1 more coat of Epoxy and then use a 2K -

- Stephen
 
I would spray it, simply because brush marks are hard to sand out. But you could brush it if you wanted to. Either way, you should sand out beyond the repair to ensure adhesion, though when spraying to need to sand further.
 
stephen44;571 said:
.. I am scuffing the epoxy first and then shaping and then filling..
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Not sure what you meant by "shaping", before filling. If it's working the metal, (bumping, slapping, dollies, etc.), that is best done on bare metal prior to epoxy.Only drawback to brushing epoxy will be uneven texture and edges that will need to be sanded more than if sprayed.
 
crashtech;572 said:
I would spray it, simply because brush marks are hard to sand out. But you could brush it if you wanted to. Either way, you should sand out beyond the repair to ensure adhesion, though when spraying to need to sand further.
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sure - got it -



metalman;573 said:
Not sure what you meant by "shaping", before filling. If it's working the metal, (bumping, slapping, dollies, etc.), that is best done on bare metal prior to epoxy.Only drawback to brushing epoxy will be uneven texture and edges that will need to be sanded more than if sprayed.
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well - by the time i got all the old paint off & welded new panels in - it was starting to flash rust etc - so i just sprayed the whole cab in epoxy as i went. Now it is time to start fixing the metal - the small dents etc

what do you suggest - grinding the epoxy off where i am going to hammer and dolly ? - before or after hammering ?

are you saying the 2k won't cover the brush marks or seams ?

- thanks for the replies so far - Stephen
 
From your description I would guess it may be easier to start hammer/slapper/dollie with the epoxy on. With a sanding block use the epoxy as a guide to reveal highs and lows. The epoxy adheres very well but if it's been hammered, smashed on dollie, stretched, etc., in the end it would be better to remove all the epoxy from the worked areas and apply fresh undisturbed epoxy prior to filler or additional primer. If you plan to use a shrinking disc the metal must be stripped clean for the disc to be effective.What Crash and I are referring to is the brushed epoxy will need more sanding to create a smooth surface. If you bury the brushed texture with 2K and block that it will likely take more 2K than necessary and just introduce highs and lows in the surface that don't need to be there. The saving in time, if any, by brushing the epoxy will be canceled by the extra material and time.Hope that helps.
 
metalman;656 said:
Sorry that is all jammed together, the edit feature isn't working.
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No that is fine - good info - that is what i wanted !
- anyone got a good source for a shrinking disk ?

- Stephen
 
Since you have stripped the paint off and applied epoxy, why not use it to help work the metal? Yes, I would definately remove it all after working the metal, and certainly before using the shrinking disc, but it will be a big help working out the highs and lows.

Aaron
 
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