I was wondering what the BEST glue to use to join parts together from a 3D printing of PLA material? I heard a brand name Plastruct Plastic weld is BEST. I have some and tried it on a scrap piece BUT after a day I was able to pry the pieces apart. Should that be possible OR is my bottle old?????
What are the Best Glues to use on 3D PLA material
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I've never had issues with CA adhesives on PLA. The trick is to sand the mating surfaces first. With a perfectly flush set of faces, thin CA grabs permanently. If you have gaps, I like rubber-reinforced CA gel. I swear by Gorilla brand CA gel.
In my experience, the PLA part will break before the connection will. -
I've never had issues with CA adhesives on PLA. The trick is to sand the mating surfaces first. With a perfectly flush set of faces, thin CA grabs permanently. If you have gaps, I like rubber-reinforced CA gel. I swear by Gorilla brand CA gel.
In my experience, the PLA part will break before the connection will.
Make sure they are fully cured, not sticky.
Clean mating surfaces with IPA after sanding.
Grtz,
BartPractical wisdom is only to be learned in the school of experience.
"Samuel Smiles"Comment
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Reading the label I saw "Resists weathering and humidity" which in our environment it needs the definitive waterproof. However, I went to the site and here are more specs:- Bonds: Hard Plastic, Styrene, PVC, Acrylic, Ceramic, Concrete, Fiberglass, Metal, Vinyl, Wood
- Tensile Strength: 3500 psi
- Color: Cream
- Waterproof
- Handling Time: 4-5 Minutes
- Set Time: 10-15 Minutes
- Cure Time: 24 Hours
- Temperature Range: -40°F to 200°F
Very cool tip! Thank you.
If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.Comment
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I've never had issues with CA adhesives on PLA. The trick is to sand the mating surfaces first. With a perfectly flush set of faces, thin CA grabs permanently. If you have gaps, I like rubber-reinforced CA gel. I swear by Gorilla brand CA gel.
In my experience, the PLA part will break before the connection will.
Thanks for your advice on glues.
About the Gorilla glue CA Gel, does it specifically say on the tube that it has rubber in it? OR is that a special version of that glue?Comment
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