Review on Get Creative With SUNLU Multicolor 3D Printer Filament Bundle - 8 Colors, 2Kg, 1.75Mm, Vacuum Packed Spools by Cameron Kennedy

Bump your print bed temp up about 10°c.I recommend Aqua Net hairspray rather than PVA school glue (thinner, more uniform and better adhesion).Start out by turning ironing off if you use it and adjust your nozzle temp to refine your outer surfaces. PETG is stickier than PLA and ironing doesn't produce the same quality it does for PLA.Requires more cooling fan than PLA to combat its stickiness and heat retention.Don't automatically assume that more heat will produce a smoother print.You'll want to use the LEAST heat that fuses your layers to get the best surface.Fuses layers much better than PLA but it also has a wet glossy surface that shows tiny imperfections more easily.Not as rigid as PLA but also not as brittle.A great alternative for impact resistance.