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Description
Stone Gray PLA PrimeStone Gray PLA Prime Polylactic Acid is a biodegradable, eco friendly plastic, known for its ease of use and low warpage quality. PLA Prime is our high performance PLA 3D printing filament. It is made from Natureworks Ingeo 3D850 and shows improved heat resistance, more toughness, good adhesion and less warping or curling than traditional PLA. PLA was always the go to basic filament and is still recommended when you start your journey with 3D
Stone Gray PLA Prime
Polylactic Acid is a biodegradable, eco-friendly plastic, known for its ease of use and low warpage quality. PLA Prime is our high performance PLA 3D printing filament. It is made from Natureworks Ingeo 3D850 and shows improved heat resistance, more toughness, good adhesion and less warping or curling than traditional PLA. PLA was always the go-to basic filament and is still recommended when you start your journey with 3D printing, without needing to change any of your profiles you can up your game by printing with Coex 3D PLA Prime - available in most of our standard PLA colors. This high performance material will be perfect for that special print or prototype that you've been wanting to make but weren't sure if PLA was the best material for the job. Please realize though that all grades of PLA will still have limitations. If you truly need high strength and high heat resistance you may want to explore other materials for your project or part.
Recommended Print Settings
Coex 3D recommends the following print settings when printing with our PLA Prime. Settings will vary depending on your specific printing setup.
- Hotend Temperature: 215 °C - 235 °C
-
Important! This temperature range may seem hotter than you're used to for other PLA filaments. Using 100% virgin resin causes our PLA to require slightly higher printing temperatures.
- Heated Bed Temperature: 40 °C - 60 °C
- Note: A heated bed is not a strict requirement when printing PLA, but using one is recommended.
- Recommended Build Surfaces/Adhesives
- Glass Build Surface
- PEI Build Surface
- Magigoo
- Painter's Tape
- Glue Stick
- Cooling Fan: Recommended. Up to 100% fan speed is advisable when printing PLA.
- Drying: PLA Prime filament is hygroscopic and will absorb moisture from the air if not stored in a dry environment. If this happens, you may experience under-extrusion/inconsistent extrusion or excess stringing. You may also hear a "popping" sound coming from the hotend during printing. We recommend drying our PLA at 55 °C for at least 3 hours if it has been exposed to excess humidity.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Sturdy. Tight fit. No wobble
Size: 2 Pairs / 4 pcs
These are the best ones I’ve found. This order will connect one wire. Luckily that’s what I needed. If you’re doing more than one wire…
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Superior Design!
Size: 6 Pairs / 12 pcs
Delivery was lightning fast.
I tried a pack of two pairs of these banana jacks as a sample to see if these would meet my needs. The design of these plugs is superior. The design was exactly what I wanted because the speaker wire is secured with TWO set screws. Then I ordered an additional six pairs of plugs to hook up my subwoofer to my amp and speakers.
(I feed the audio output from the amp to the sub. The sub has a crossover that keeps the low frequencies and sends the mid and treble frequencies to my bookshelf speakers.)
I love the security of two set screws on each plug and love the barrel that screws on AFTER the wire is secured by the set screws. Most banana plugs have a hole through the shaft of the plug that receives the stripped wire. Then the barrel cover is screwed down to secure the wire in the plug. This design compresses the speaker wire but eventually the cap loses it grip and allows the connection between the wire and the plug to become loose. Then the transfer of the audio signal becomes poor and the speakers sound bad. Every month or two I needed to check all the banana plugs and re-tighten many of them for the best performance. The two set screws eliminate this problem. The set screws are quite small and take a little extra care in installation. You will need a small flat blade screwdriver to tighten them. I used the 1/8" flat blade driver from a set of jewelers screwdrivers.
These well made plugs are a bit pricier that many of the banana plugs available but certainly not the priciest plugs available. For me, the slightly higher price was more than offset by the security of the wire within the plug.
I'm not thrilled with the extra tight fit of the tip on the plugs into the jacks. It took a lot of effort to insert the in the jack. Actually I "greased" the pins (very sparingly) with with non-corrosion, conductive paste (Ox-Gard, No-Corrode, etc. Do NOT use any other grease.) Next time I'll use pliers to compress the pin.
My only quibbles are that the spring pins that go into the jack are very tight and that the plugs are only sold in quantities of two pairs or 12 pairs.
I recommend these banana plugs for all who are using the banana plugs and jacks for hooking up your speakers. It's a very convenient way of connecting speakers if your speakers and amplifier have the banana jack as part of the binding post. Further, it's much safer to use banana plugs since the possibility of shorting your amplifier with a stray strand of wire is practically zero. Easy Five Stars.
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Reviewed in the United States on April 13, 2018
★★★★★ 5
Top banana
Size: 5 Pairs / 10 pcs
Theses banana plugs are hight quality non magnetic. Banana plugs easy to usexand very high quality sound different because of the better connection and quality.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Very easy to use
Size: 12 Pairs / 24 pcs
I have an Onkyo audio/video receiver along with an Emotiva amplifier. Both have speaker "post" terminals which will accept banana plugs, OR I can connect the speaker wires by unscrewing the posts, poke the speaker wires into the terminals and then tighten the posts. The problem with poking the wires into the terminals and tightening the posts vs using banana plugs is that there is a risk of the wires touching the metal on the back of the chassis or touching other speaker wires, causing a short if one is not careful. With banana plugs, they simply plug into the back/top of the posts, eliminating the rsick of a short circuit. They can also be unplugged very easily if needed. Banana plugs are DEFINITELY the preferred way to connect speakers to an receiver or amplifier if they have post-style terminals.
These particular banana plugs came in a package of 12 I believe. They were very reasonably priced, and simple to connect to the end of the speaker wires. Simply unscrew the banana plugs, use a small, standard jewelry screwdriver and loosen both of the set screws, insert the speaker wire, then tighten the set screws, and then screw the banana plug back together.
The plugs have either a red band which would typically be used for your "Right" speakers, or a black band which would typically be used for the "left" speakers. The banana plugs insert into the top or front of the speaker terminal posts on the amp and receiver. They fit VERY snug, and so I did have to apply just a little bit of pressure in order to insert them into the posts, but once plugged in, rest assured they're not going anywhere. They are snug.
I highly recommend these.
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Reviewed in the United States on January 2, 2025
★★★★★ 5
Heavy-Duty 4 AWG Cable With Flexible Insulation
Size: 10ft, Color: 4awg
I am satisfied with this 4 AWG cable. The insulation coating is soft, and the cable itself is very pliable, making it easy to bend and route into the configuration needed for installation. Despite the flexibility, it still feels like a heavy-duty cable designed to handle demanding applications.
I am using this cable to provide the necessary amperage to start the generator on my trailer, and it performs as expected. I also like that the wire gauge and cable properties are clearly printed along the side of the insulation, making identification easy during installation or future maintenance.
The cable arrived in good condition with no obvious odor from the insulation or packaging. Overall, this appears to be a quality heavy-duty cable that is flexible, easy to work with, and suitable for high-current applications.
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Reviewed in the United States on May 8, 2026