Peak Global is available in full strength and works great in Asian cars.
If I had purchased G-05.... lightly silicated... I would've just used it. Its not like the mud forming coolants of the 1970's.
Zerex Asian is a great choice but only 50:50.... you already flooded all the nooks/crannies with 'water'.....same problem with the 50:50 Pentofrost A3 and A4... but I think that A1 and A2 are concentrated full strength.
My current fill is Recochem/OEM from Pepboys....
Anti-freeze, windshield wash, solvents, Global supplier of automotive liquids & household chemicals - Recochem Inc.
Toyota Red concentrate and Ford VC10a2 concentrate can also be used.
Honda/Mazda/Subaru.... are 50:50's so they're a no go after a water flush. Think that Subara LongLife(not super)is full strength and worth a check.
And, there is the much maligned Prestone that I've used 100's of times and never had a problem with, along with other all makes all models coolants:
Antifreeze / Coolant | Prestone®
Valvoline? MaxLife? Antifreeze/Coolant : Product Catalog - Valvoline®
The problem with a water flush is that you need concentrate in order to bring up all that water in the block back up to 50:50 ratio. This is why I never recommend flushing for beginners or DIY'ers. Just drain/refill the radiator, recovery/overflow bottle, with a 50:50 coolant. Repeat again if necessary and every few years. The newer Asian coolants really never need flushing since they don't crud up or leave deposits.
Napa, Walmart, Pepboys, Oreilly, Advance, and Autozone... all have a good Asian and allmakesallmodels antifreeze selection. I can usually find the Peak Global 50:50 in supermarkets and pharmacy chains in case of an emergency.