i got 2L of epoxy mastic 121. i think from memory i used about 1-1.5l spraying it on with a micro spray gun. results are in this months complete kit car. good thing is that there is plenty left for touch ups if i ever make any alterations to the chassis.
im happy with the results but it did chip easily at first. now its been on the car over a month it seems to be more robust.
i calculated the cost of doing it with spray cans from halfords and it worked out around £90. powder coating was £140 but ideally you want it sand blasted before powder coat adding another £60 to the cost.
by far the most cost effective solution is hamerite but i would say its slightly less durable than the epoxy 121.
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