[Woodworkers] Reusing Resin Forms

Sun Nov 20 08:54:40 PST 2022

Karen,

   Thank you for those videos. The creativity of people are amazing! I’ll start paying more attention to my “normal” HDPE stuff. However, that’s for another time 😊. Looks like you need some dedicated stuff in the shop or face the wrath of the significant other 😊

Chuck

From: KAREN MACK <emmrys at comcast.net> 
Sent: Saturday, November 19, 2022 6:38 PM
To: woodworkers at sawdusters.org; chuck.steger--- via Woodworkers <woodworkers at lists.sawdusters.org>
Cc: chuck.steger at gmail.com
Subject: Re: [Woodworkers] Reusing Resin Forms

What I am talking about is HDPE that you have in your home in the course of life. These YT videos show a bit of what can done with it. 

           https://www.youtube.com/watch?v=erlZ-FdBB2I 

           https://www.youtube.com/watch?v=jx2B55YG4SY 

I have saved a bunch but haven't tried using for myself....yet. 

Karen 

On 11/19/2022 2:28 PM chuck.steger--- via Woodworkers <woodworkers at lists.sawdusters.org <mailto:woodworkers at lists.sawdusters.org> > wrote: 

Steve,

   Right, but size would be an issue there. Grainger’s sells sheets of HDPE of differing thicknesses. A ¾” x 12” x 24” sells for $34 and I would need two. However, I already ordered a 12” x 24” form so I don’t need it anymore. I am going to pour a one-off (for me) what I call a Turkey size cutting board (maybe 18” or 20” W by 30ish” L) I looked at the ¾” x 24” x 48” and it’s $127. In this case, even a disposable form is much cheaper.

   Even though I have a form coming, I am still going to build my version so I can pour two at a time. Plus, it will let me know if I can make reusable forms in conjunction with mold release.

Karen, 

   Not sure what you mean by save up your HDPE. I don’t have any to save. If you mean save money to buy HDPE, see above. I’m a hobbyist - If I were selling tables, etc. it would absolutely be cost effective.

Chuck

From: Woodworkers <woodworkers-bounces at lists.sawdusters.org <mailto:woodworkers-bounces at lists.sawdusters.org> > On Behalf Of Steve Bigelow via Woodworkers
Sent: Saturday, November 19, 2022 12:28 AM
To: woodworkers at sawdusters.org <mailto:woodworkers at sawdusters.org> 
Cc: Steve Bigelow <sbig333 at gmail.com <mailto:sbig333 at gmail.com> >
Subject: Re: [Woodworkers] Reusing Resin Forms

Sorry, I guess I wasn't clear... There are HDPE cutting boards you can use to make your molds. These are the white plastic cutting boards found at Dollar Tree, etc.

Regards,
-Steve

On Fri, Nov 18, 2022 at 3:56 PM KAREN MACK via Woodworkers <woodworkers at lists.sawdusters.org <mailto:woodworkers at lists.sawdusters.org> > wrote:

Or save up your HDPE and make your own molds. 

Karen

On 11/18/2022 5:02 PM Gary C Williams via Woodworkers <woodworkers at lists.sawdusters.org <mailto:woodworkers at lists.sawdusters.org> > wrote:

Chuck,

If you're making Christmas gifts, you're starting way too early.

You're supposed to be asking these questions around December 20th.

LOL

Gary Williams

-----Original Message-----
From: chuck.steger--- via Woodworkers <woodworkers at lists.sawdusters.org <mailto:woodworkers at lists.sawdusters.org> >
To: 'Steve Bigelow' <sbig333 at gmail.com <mailto:sbig333 at gmail.com> >; woodworkers at sawdusters.org <mailto:woodworkers at sawdusters.org> 
Cc: chuck.steger at gmail.com <mailto:chuck.steger at gmail.com> 
Sent: Fri, Nov 18, 2022 4:46 pm
Subject: Re: [Woodworkers] Reusing Resin Forms

Steve,

   Thanks! Yeah HDPE seems to be the form material of choice. I also found some companies that make the molds (similar to the Amazon link you had). I can only get HDPE sheets from Grainger’s (that I know of – big box doesn’t have the thickness). Given I have to make my form anyway, that’s an option. The “con” is you still have to treat it like any other form (i.e. assembling & caulking). I like the self-contained ones like in your link but the “con” of that is then it truly is only for one size (i.e. not reconfigurable). This Canadian company (Jeff Mack Supply <https://jeffmacksupply.com/en-us> ) has several sizes. I just ordered the 12x24. I wanted something a little bigger than the Amazon one since these will be charcuterie/cutting boards. The only way I can justify the expense is I’m telling myself I’m making multiple gifts! I’m still going to make a form as outlined below, using mold release. I want to see if this works which then frees me up for other form sizes at less cost in the future.

Chuck

From: Steve Bigelow <sbig333 at gmail.com <mailto:sbig333 at gmail.com> > 
Sent: Friday, November 18, 2022 12:15 PM 
To: woodworkers at sawdusters.org <mailto:woodworkers at sawdusters.org>  
Cc: chuck.steger at gmail.com <mailto:chuck.steger at gmail.com>  
Subject: Re: [Woodworkers] Reusing Resin Forms 

I have only used resin forms for resin only products, but the key is that you need to have either a draft angle, or use a pliable form like silicone. Or, you can make it so you can disassemble the form. For a solid form the mold release is a must.  

A quick search shows a resin form you can purchase on Amazon. https://amzn.to/3gcikaw This one has a draft angle of 3 degrees and is made from HDPE. You can use cutting boards for this if you smooth out one side.  

Regards, 
-Steve 
http://woodworking.bigelowsite.com <http://woodworking.bigelowsite.com/>  

http://pen-blanks.us <http://pen-blanks.us/>  

On Thu, Nov 17, 2022 at 7:48 PM chuck.steger--- via Woodworkers <woodworkers at lists.sawdusters.org <mailto:woodworkers at lists.sawdusters.org> > wrote: 

   I need help from some resin gurus …..

   The first and only table pour I did was a one-off and so I used a disposable form. It turned out pretty decent for my first try. Now I want to make cutting boards for Christmas gifts in the river style. They will all be the same dimension with only the “river” being unique. My question is can you reuse forms?

   My plans are to use melamine veneer plywood for the base and sides. I bought mold release spray which I plan to use on the base and sides. I’ll use caulk along the natural edge to try to keep the resin contained but I’m sure I’ll have some leaks which is why I’ll spray the whole base. Do I need mold release tape? If so, river bed only or whole base & sides? For reuse, peel it all off and retape? Or, is mold release spray good enough?

  Some of the people doing pours are really talented and creative. I’m a novice but you have to start somewhere!

   Thanks!

Chuck

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