Hi,
We cast a resin river table using Glass Cast 50 after watching the video on EasyComposites website, it all looked very easy but then the fun started when we tried to polish the resin. No matter what grit and polish we have used there is always marks on the resin. We have used up to 2500 wet and dry followed by NW1 recommended by Easy Composites and finally tried 3M 3 stage ultra polish. Even using a random orbital polisher the finish looks great from a distance but up close you can still see the swirls and small sanding marks. If we wipe over the resin with a piece of kitchen paper you can see the very fine scratches where it has been? If this is to be a table for someone it will be marked in days, does this sound right? I expected GC50 to be much harder than this and able to sustain a bit more than kitchen paper without marking? How do we get it as close to the original glossy cast with sanding and polishing? Should it be harder to scratch than this or do we need a tougher top coat?
Many thanks,Vix
P.S we used 2litres of resin to 1 litre hardner and its been 15days since we cast.