I picked up a roll of PLA+ at Microcenter because it was on clearance. I didn't even notice the "+" until I decided to try that color, and I noticed it on the sticker. It prints well, feels like ABS, but smells like PLA when printing, and I can use PLA temps on my printer. It sands better than PLA, and if I I hadn't noticed the PLA+ sticker, and the smell, I would think it was ABS.

Aside from a few discussions on reddit (review, commercial introduction), I can't find anything about it.

What is PLA+? How is it different than PLA?

I went back to Microcenter and the guy working the 3d printing section did not know what I was talking about.

I went to Microcenter another time and the guy in the filament area said that all of their PLA filament was now PLA+, and that the + meant it was to be used at a higher temperature. The boxes are labeled with 205 - 225°C. It seems that all the inland brand PLA I have is PLA+, save for the first roll I bought. It does not have any kind of temperature markings on it.

  • $\begingroup$ I don't think there is any standard formulation. Different manufacturers add their own modifiers (and usually stay tight-lipped about what they are). $\endgroup$ – Mick Nov 15 '17 at 13:21

There’s no huge difference between both. The printing settings like temperature and printing speed are practically the same. But the PLA+ have a much better surface quality and it’s slightly more bright than normal PLA. Another difference is that the PLA+ it's more effective in bridges than PLA.

If you want to the comparison between PLA and PLA+ go right here, PLA vs PLA+ (short review). This post is an awesome experiment with both materials.

  • 1
    $\begingroup$ That's the first link I link to in my question. $\endgroup$ – YetAnotherRandomUser Nov 18 '17 at 0:51

PLA+, depending on the brand, is probably a mixture of other plastics (things like TPU) to help improve upon the weaknesses of regular PLA like brittleness and moisture absorbing. Or they simply used a higher quality PLA blend to create the filament.

  • $\begingroup$ Do you have any sources for what you say is probably the case? What is TPU? $\endgroup$ – YetAnotherRandomUser Nov 19 '17 at 14:30
  • $\begingroup$ I do not have a specific source except from collaborating with different materials experts such as Essentium Materials. TPU is a flexible plastic that can have different "hardness" levels. $\endgroup$ – Adam Starbuck Nov 19 '17 at 17:56
  • $\begingroup$ What does TPU stand for? $\endgroup$ – YetAnotherRandomUser Nov 29 '17 at 15:30
  • $\begingroup$ @YetAnotherRandomUser Thermoplastic polyurethane. It's a flexible thermoplastic. $\endgroup$ – Adam Starbuck Nov 29 '17 at 19:51

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.