486MP Adhesive Removal
-
I've just gone away from stick down PEI sheets, as they are a pain in the butt when trying to fix it to a 320x320 mm cast Aluminium sheet....
Instead I've gone for a "Two Trees" 310x310 mm magnetic removable spring steel, pei sheet... much much easier to work with, & when hot PETg sticks well, just have see how long it holds for.
-
@mrehorstdmd Mark yes I am aware of that and in fact I do need to order a new silicone heater for a build and it will be requested without 3M Adhesive
-
In order to clean things, you need to consider the solubility of the stuff you want to remove.
For example, I used glue stick on my bed. To remove it I tried IPA first, didn't work. Then I tried acetone which didn't work either. In the end it was water that cleaned it up.
I suggest to try water first, then a mix of water and IPA (yes, mixing IPA with water can also make a big difference), and as a last step acetone. Soap water can also be helpful in some cases. If all of that doesn't work, try superacids
-
Well, I'm now ready for my next career... McDonald's Griddle Scraper.
In the end it was this stuff that did it...
I heated the bed to 45C, spread this stuff on half the bed and let it sit for 10 minutes. Then I used a plastic scraper to lift the adhesive and transport the whole mess to the other side of the bed. Another 10 minutes and all the heavy stuff slid right off. I then used some of the Orange-Sol stuff to clean up the residue. Then denatured alcohol to clean that residue. Given the time it took, it'd have been cheaper for me to shell out another $180 for a 500x500x6 piece of MIC6.
I'll never eat another peanut butter and jelly sandwich again.
-
This is a business opportunity for 3M. Selling an official remover.
-
@zapta they already do
https://www.3mcanada.ca/3M/en_CA/company-ca/all-3m-products/~/3M-Adhesive-Remover-6041-pale-yellow-24-oz-709-77-ml-/?N=5002385+8709332+8710676+8710815+8712986+8713605+3293795722&preselect=8709320+3293786499+3294529206&rt=rud&utm_term=sibg-iatd-na-en_ca-ba-2020-product-search-en-cpc-google-na-learn-na-jan20 -
@gtj0 $180???? !!!!
If you live near Milwaukee or Minneapolis, Howard Precision Metals sells cut-offs for scrap price- usually <$2/lb. The 8mm MIC6 piece that became the bed in my printer cost $15 or 18.
-
@Phaedrux said in 486MP Adhesive Removal:
@zapta they already do
https://www.3mcanada.ca/3M/en_CA/company-ca/all-3m-products/~/3M-Adhesive-Remover-6041-pale-yellow-24-oz-709-77-ml-/?N=5002385+8709332+8710676+8710815+8712986+8713605+3293795722&preselect=8709320+3293786499+3294529206&rt=rud&utm_term=sibg-iatd-na-en_ca-ba-2020-product-search-en-cpc-google-na-learn-na-jan20Now you tell me.
-
@mrehorstdmd said in 486MP Adhesive Removal:
@gtj0 $180???? !!!!
If you live near Milwaukee or Minneapolis, Howard Precision Metals sells cut-offs for scrap price- usually <$2/lb. The 8mm MIC6 piece that became the bed in my printer cost $15 or 18.
Yeah for an exact cut 500x500x6 piece. Denver, not "up north" but the next time I need a bed I'll do more local scouting.
-
A cheap mix of orange oil (d-limone) and IPA worked for me getting a very sticky thick adhesive used to hold a Teflon sheet down that acted as a slide sheet for a cnc machine we service .
IPA and methyl spirits on there own didn't work , adhesive kept grabbing the scrape tool or cloth .
but a 10% orange oil in IPA solution suddenly turned it into soft bubbly scrape-able goo with in minutes.
another trick I have used on industrial label adhesives ( Wine bottle labels to be exact) but takes a 3-6 days to work is just spread margarine (not butter or peanut butter) over it and let it sit .
-
Same issue, Heater let go.
Do not think peanut butter is going to sort this one!
Honestly think this is a heater issue as the other 3/4 is fine.
-
@PaulHew How was that heater pad bonded to the plate?
-
@Phaedrux 3M 468MP, it is preapplied to the heater.
never had a heater let go like that. Even the guys in the RC / Voron discord were surprised.
-
@PaulHew Yeah that's scary. I wonder how many fire hazards like that are out there like ticking time bombs. I'm glad I took the time to scrape it off mine and use silicon adhesive instead.
-
Weather the adhesive failed and the lost cooling caused the heater to overheat or if the heater itself failed won't be easy to determine? BigCliveDotCom or AvE autopsy?
-
@gaweyo Well the burn mark on the heater where it wasn't making contact seems a dead giveaway.
-
I've posted this picture before- heater let go of the plate in my printer after about 2 years of service:
I didn't seal the edges of the heater with silicone as Keenovo recommends (I had never seen a recommendation before I used the heater). It looks like @PaulHew did and the heater let go anyway.
The replacement heater was glued down with silicone instead of 468MP. It's been on there almost 2 years and doesn't show any sign of letting go.
-
@mrehorstdmd
How do you apply the silicone-glue evenly?
The stuff, I have here from Auto-store has pretty low viscosity.
A silicone heater is stiffer than a PEI sheet, but still able to get wavy without an even layer of silicone-glue.
And the wavy part could cause a cold-zone on the bed surface. ( Maybe only in my imagination) -
I never much fancied the idea of relying on an adhesive bond for the bed heater. That's another reason why I used semi rigid insulation between the build platform frame, and the aluminium build plate (with heater attached). The heater matt is effectively clamped between the insulation and the aluminium plate so if the adhesive fails, it won't make much difference.
-
@o_lampe said in 486MP Adhesive Removal:
How do you apply the silicone-glue evenly?
could use a comb like tool, much like the used when laying down cement based adhesive for tiles?
