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It's common to use hairspray, especially AquaNet, as a bed adhesive. My understanding is this works because the spray includes a chemical called polyvinylpyrrolidone, or PVA.

What other brands of hairspray are known to contain this chemical in sufficient concentrations to work as an effective adhesive in 3D printing applications?

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  • $\begingroup$ PVA is in sprays and white glues (school glue and wood glue), polyvinylpyrrolidone is found in some glue sticks. See e.g. this answer. $\endgroup$ – 0scar Nov 8 '19 at 23:16
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    $\begingroup$ This is too broad as an unlimited list question. $\endgroup$ – Trish Nov 8 '19 at 23:34
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    $\begingroup$ Just read the ingredients list..? $\endgroup$ – R.. GitHub STOP HELPING ICE Nov 9 '19 at 2:05
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From an MSDS for AquaNet hairspray:

Water (Aqua), Dimethyl Ether, SD Alcohol 40-B (Alcohol Denat.), VA/Crotonates/Vinyl Neodecanoate Copolymer, Acrylates Copolymer, Aminomethyl Propanol, Sodium Benzoate, Cyclohexylamine, Triethyl Citrate, Cyclopentasiloxane, Sodium PCA, Masking Fragrance (Parfum)

The MSDS doesn't mention polyvinylpyrrolidone.

I suspect that the "PVA" here is the VA/Crotonates/Vinyl Neodecanoate Copolymer. A little googling indicates that this is a common ingredient of hair sprays, and works by forming a thin coating over hair to prevent it from adsorbing moisture.

I stumbled upon three types of Loreal(R) hairspray that have these ingredients. It seems likely that there are more.

Disclosure: I use AquaNet on an aluminum bed as a PLA bonding agent, and on my Prusa PEI covered bed as a PET-G release agent.

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