Does PG material have a recommended shelf life?


#1

Adhesives don’t last forever in my experience.

Is there a shelf life for how long until the masking permanently adheres (or falls off) pg materials?

How absout the backing adhesive on veneer? Does it eventually lose effectiveness?


#2

It doesn’t take to long-term storage that well, for those of us who don’t have temperature and humidity controlled vaults. Which is a way of saying a lot of the pieces I got with my machine last year and haven’t gotten around to using yet have wrinkled masking paper.


#3

I was just thinking about this yesterday - about how awesome it would be to be able to mix a short term, time-release adhesive that just falls off like paper. We should work with @volivaa :slight_smile:

Oh, here is some info on 3m shelf life:


#4

Last year like November ish?


#5

August. I have a bad memory for dates. So it’s been through a lot of changing weather.


#6

If you still have materials from last November, I don’t think you are taking this Gowforge concept seriously.

Joking aside, I will be lucky if I still have anything a month or two down the road. I burn it up a bit.
Two lumber yard trips already…


#7

I have virtually all of my PG stuff, I cut almost exclusively non PG, mostly BB from lumberyard and exotic hardwoods from http://www.gvwp.net/.

In fact, literally the only PG material I have cut at this point is one sheet of clear acrylic.


#8

As I type this, I’m working a piece of PG cherry hardwood received in March of 2017. Tiny wrinkle about 2 cm long near a previous cut, but otherwise no worries. Neither harder or easier to weed after. YMMV.


#9

I have a pretty significant backlog of projects to get around to “eventually”. Right now they’re coming in a lot faster than they’re going out.


#10

When I first started playing with the PRU I just stacked new PG on top of old PG. Figured out last fall that I should be rotating the stock because I found differences in thickness of the “same” material - rotating the new stuff to the bottom keeps things from getting too mixed up and their changes in spec from messing up a project as I go from different “medium” thicknesses. Still have the potential but it’s limited to just the occasional piece as I move from one batch to the next vs mixed up batches as I pulled a sheet and moved things around. I think I still had some April stuff in September :slight_smile:


#11

Thanks for the link.


#12

No problem! I’ve been pretty happy with their stuff, and the prices are pretty good. I broke it down vs inventables here:

Worth mentioning that their thicknesses do vary a bit, especially their maple seems to run thick (more like .160 for their 1/8” product). Definitely measure before designing if material thickness is a factor. (Good advice with any material)

They also sell on eBay with free shipping. Their username is “monitorseller”.


#13

I agree for the wood, but the cutting board price was crazy. Thanks for the eBay moniker too.


#14

Crazy good or crazy high? I haven’t looked. Got a url to what you’re looking at?


#15

Their’s (albeit not the same material or size that I bought)… http://www.gvwp.net/online-store/CUTTING-BOARDS-c14044332
I just can’t see buying for that price, lasering, and selling for a profit.

I’m using boards from this site. I can’t find the exact ones I bought. Might have been a clearance item. https://www.cuttingboard.com I paid $22 each for 9"x14"x1/2" Bamboo. More like 0.58" so I’m working without the crumb tray. See this post https://community.glowforge.com/t/unfocused-scoring/20212 and A three hour tour


#16

Even that seems high, in the face of IKEA.

Not exactly apples to apples, but a 17.75x11x.75" APTITLIG is $7.99:


#17

Good to know. I haven’t been to IKEA in ages and last time I checked, I couldn’t order online. When I run out of the ones I have, I’ll try theirs. Some that I practiced on were from Walmart, but very thin, and bamboo quality was poor.


#18

I’ve had those boards from IKEA in my hands, they are pretty stout, good finish quality. The angled edge is pretty modern and very Scandinavian, but if you’re cool with it, it’s a nice board.


#19

I still had a few pieces from my original PF shipment (June-ish of last year?). I’ve noticed that the masking is starting to wrinkle on the older pieces.


#20

Funny I bought that one yesterday!