Quoted from mbeardsley:...
I bought a new set of boulders from Starship and was quite happy with them. Yes, the color is a bit darker than original, but when they are lit they seem to look even better than the original.
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When I bought my WH2O it also came with a set of new boulders, they all had the same problem as many others have pointed out, they are painted way to dark and differ quite a bit from the original plastics. I knew I had read about someone using liquid to remove some paint in an old post somewhere, so I decided to test that out myself.
I took some different liquids on a rag of cloth (one at a time ofc) and swiped on a boulder until I found something that worked. Unfortunately I cannot remember exactly what liquid worked best (this was a few months ago) but I think it's what we in Sweden calls "T-Röd", an Ethanol based liquid. I initially tried to apply the liquid using a brush but it didn't work that good, the friction from the cloth was needed to get the color off properly.
New untouched boulder, looks like a dog turd:
Before2 (resized).jpg
"Fixed" boulder, much better:
After2 (resized).jpg
New untouched:
Before1 (resized).jpg
"Fixed":
After1 (resized).jpg
Rags after moderate wiping, see all that brown paint I removed. I could have continued but I was afraid of removing too much paint so stopped when I thought it was good.
20200513_201029 (resized).jpg
As the last step I washed the boulders with tap water for a few seconds to remove any remaining liquid; not sure if needed but can never be too careful. Now the replaced boulders match the other original ones much better (not a perfect match but much closer anyway) and it took maybe 30 minutes in total.