got this reply today from urethane supply company (has website www.urethanesupply)
contact: scott bixler 800/633-3047
1. clean with 100-a super clean ($6.50)
2. fill gouges (after sanding) with 2020-t hard set filler ($22.95)
3. paint with bumper and cladding coat (3518-8 honda black- $32.95 /pint) one pint o.k. if you don't spray too heavy- if you don't have a sprayer use a preval sprayer ($12.95) + 2 cartridges
total w/sprayer/catridges under $100.
or if you don't want to do entire car:
1. use the filler and conceal repair with bumper and trim black. (which will not match cladding color as well so may have to apply to all cladding)