The secret to a successful 3D printing project is knowing how to glue PLA. To achieve the best results, you’ll need the right adhesive and some tips from the experts. Read on – and learn how to glue PLA together quickly and easily.
PLA is a popular choice for 3D prints. It’s a biodegradable plastic that’s inexpensive, versatile, and easy to use. Many 3D print enthusiasts opt for PLA for its sheer convenience. If you’re new to the world of 3D printing, you may want to start off by experimenting with PLA.
When you’re planning a project, you need to think about how to glue PLA together effectively. In theory, it’s a simple job. But it’s important to get it right first time, so you don’t render your prints useless.
Gluing is an important stage in the 3D printing process – fundamental for a smooth finish and results that last.
So, what’s the best way to glue PLA? Which adhesive should you choose?
You have a couple of options; most super glues and epoxy resins can be used for PLA. Just make sure to double check the manufacturer’s instructions before you apply the glue, so you’re confident that it’s compatible with PLA.
Epoxy resin is popular for its high strength and durability. It’s a good choice if your priority is long-lasting results.
There are a couple of potential disadvantages, however. Compared to other glues, epoxy takes a little more time to prepare and apply, as the components have to be mixed first. Additionally, some epoxies heat up during the curing process, which could damage the PLA.
For these reasons, we recommend using a super glue instead. All things considered, it’s the best way to glue PLA parts.
High-quality super glues have several advantages:
- quick and easy to use
- fast dry time
- dries transparent
- strong, durable bonds
They’re also remarkably versatile. So, once you’ve used super glue for your PLA project, you can keep it stored for whatever you’re working on next. Super glue is compatible with most common materials including metal, glass, wood, and most plastics.
Pattex has a range of premium super glues which can be used on PLA and most other plastics.
Our recommendation for 3D printing projects is Pattex Super Glue Ultra Gel. This high strength super glue has a gel consistency that makes it easier to apply with precision. It’s the perfect product for assembling PLA 3D prints quickly, easily, and without making a mess.
Now you know the best way to glue PLA, we’ll look at the next stage – how to glue PLA parts together, step by step.
You’re almost ready to get gluing. Before we take you through the steps, make sure you’ve got everything you need:
- 3D printed parts
- a high-quality super glue like Pattex Super Glue Ultra Gel
- sandpaper
When using adhesives, work in a well-ventilated space and ideally wear gloves.
This is how to glue PLA together:
- Protect your workspace. Cover your workspace with scrap paper in case of any spills.
- Prepare the PLA. Make sure the surfaces are completely clean and dry. To improve adhesion, use fine sandpaper on the part of the surface you’re about to bond. Pre-fit the parts and ensure that they fit together tightly, with no gaps.
- Apply the super glue. Dispense a small amount of super glue onto one of the surfaces.
- Press the surfaces together. Quickly press the PLA parts together and keep them held in place for around 30 seconds. If you need to reposition the parts, do so immediately.
- Wait for the glue to dry. Depending on the product you’re using, it may take up to 24 hours for the adhesive to cure. For best results, leave the object overnight.
- Clean up. To remove a glue stain from the PLA while it’s still wet, use a sponge and warm, soapy water. Dab the area gently. For dried glue you can use a cloth soaked in acetone. However, keep in mind that acetone may damage the PLA.
So, that’s everything you need to know about how to glue PLA 3D prints – or any other piece of PLA. Grab your glue, then get to work!
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