ZIRO 3D Printer Filament PETG 1.75 1KG(2.2lbs), Dimensional Accuracy +/- 0.05mm,White

I love Ziro. They make great filament and have great customer service that actually answers email with sentences comprising more than 3 words. Their PLA is made from Nature Works feed stock which is made here in the US.This is my first experience using PETG. I needed something that will not warp in a dark green car, midday in Miami or Phoenix. That temp is 154F or 68C. This will hold up. At 165F/74C it will soften but not deform even if you take it out of the oven, bend it and then run cold water on it, it will spring back to its printed shape. I did tests with PLA + or other brands of anealable PLA. Anealable PLA will hold its shape at 154F but will not hold any load over a single 5 cent Nickle coin. Once PLA+ collapses, it will hold that shape. PLA + has impressive sounding numbers but you have to know what they really mean.My first print was in an unheated room and the bed was 17C. It stuck beautifully to a PEI surface with out any purple glue stick. I have done several prints on unheated beds. One bed with blue painters tape needed glue stick for it to work, then the print pulled the tape up on removal. I have some PEI build surface on order for that.Printhead temp recommendations are 220C to 260C.Prints on a cold PEI build plate.It held tolerance between 0.00 to -0.05 for the portion of the spool I used.This is unbelievable strong for a plastic.I found no negatives with this product.Colors are limited to white and clear but that is what Krylon Fusion spray paint is for.I have a plea to the whole Filament industry:Please make recyclable spools. If the spools are not stamped with their type of plastic and the recycle symbol, then they cannot be recycled.Better yet, sell this in center feeding cardboard boxes like the electric cable industry. Or even have a reusable spool system. It is an abomination that 25 percent of the plastic shipped goes into the trash unrecycled.

As a plastic, this stuff is fine, and it's a pretty good value for the price. I had no issues with handling, adhesion, clogs, strength, or dimensional accuracy. It's PETG, so it does warp a bit on very large prints, but that's 100% expected with this kind of plastic.The downside, and it's pretty major for me, is that I'm really disappointed in the color. While it's obviously white, it's far from opaque. The best description I can come up with is that it's visually a lot like the milky white plastic that milk is sold in. I'm printing small shelves to be used in the kitchen, and so I was really hoping for something that looked nicer than that: the semi-translucent nature of this plastic must makes it look cheap.

This prints more like PET than PETG. It is very brittle. It also does not string like PETG which is a plus I suppose. If you are looking for PET this filament prints well and I believe is a good value. But if what you really wanted was the durability and flexibility of PETG then avoid this.

I have bought 4 spools of this stuff and all but one has been completely shattered and unusable. One edge is typically completely shattered and sometimes the middle will be completely broken. This has to be a transportation issue from the manufacturer as I have a hard-time believing the local courier is breaking every one. I could be wrong though.