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Old 10-12-2009, 12:26 AM
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?????plastic adhesion promoter

i primed my motorcycle yesterday.....some of primer covered old scuffed paint but other parts were bare plastic......a friend of mine told me that the primer would lift after a period of time because i did not use plastic adhesion promoter......do i need to sand all that primer back off and apply this.


i did scuff all the bare plastic with 400

Last edited by glhx; 10-12-2009 at 01:35 AM.
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Old 10-12-2009, 05:37 AM
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the best option would have been to prime with epoxy.
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Old 10-12-2009, 06:30 AM
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Rule of thumb is if it is a "floater use promotor" place the part in a bucket of water and if it floats then use a promotor..there are several different plastics that may have been used so one needs to identify just what it is youhave there.....

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Old 10-12-2009, 12:08 PM
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.im really looking for the correct answer to my question...while all the information in these two posts is useful in the future...... i cannot use it now.....i dont have a tank big enough to put a side fairing into.....but i need to know if the primer i used will stick to that abs plastic



What is an advantage of priming with epoxy

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Old 10-12-2009, 12:19 PM
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Any bare(unprimed) bumper covers or plastic trim we get at work get soaked with pla-stik before paint. How big is the area and does it see any flex or abuse?
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Old 10-12-2009, 05:39 PM
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these are all sport bike fairings....abs plastic...doesnt flex much.



ive been told to sand it off by many people now.....so i will do that and may switch to epoxy.....i thought epoxy was used only for the first coat of metal and sometimes for sealer when mixed right
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Old 10-12-2009, 07:44 PM
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Quote:
Originally Posted by glhx
these are all sport bike fairings....abs plastic...doesnt flex much.



ive been told to sand it off by many people now.....so i will do that and may switch to epoxy.....i thought epoxy was used only for the first coat of metal and sometimes for sealer when mixed right
Epoxy will grip the plastic better than any other method out there, bar none.

Call Barry at SPI ( 760-781-2220 )and get the 411 on epoxy.
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