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Forum topic by mahdee posted 06-08-2017 01:50 AM 505 views 1 time favorited 12 replies Add to Favorites Watch
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mahdee

3828 posts in 1601 days


06-08-2017 01:50 AM

Topic tags/keywords: resource question oak

Hi,
Been looking to cast some wood with clear resin or epoxy but don’t seem to find any information on (but maybe two product) whether tabletop epoxy can be used as casting epoxy. Also, wondering which is better to use; epoxy or resin?
Thanks

-- earthartandfoods.com


12 replies so far

View Rick_M's profile

Rick_M

10606 posts in 2214 days


#1 posted 06-08-2017 02:08 AM

I asked this question sometime back and overwhelmingly the answer was epoxy, but I never did get around to the project so take it for what it’s worth. :)

-- http://thewoodknack.blogspot.com/

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mahdee

3828 posts in 1601 days


#2 posted 06-08-2017 02:11 AM

Thanks Rick,
I am wondering, does any epoxy work??

-- earthartandfoods.com

View Gene Howe's profile

Gene Howe

9749 posts in 3262 days


#3 posted 06-08-2017 02:27 AM

I use System 3 two part epoxy for inlays of turquoise.
I’ve never done anything large with it, such as a table top. I’ve seen it done, though. Turned out nice but, not the same as bar top stuff.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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MrUnix

5979 posts in 2033 days


#4 posted 06-08-2017 02:55 AM

What kind of ‘casting’ are you looking at doing? Epoxy is exothermic, which can cause problems on large pours. Great for smaller stuff like Gene mentioned though (I use West Systems almost exclusively btw). Larger stuff is typically done with polyester resin. Google alumalite or just ‘casting resin’ to get some ideas.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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mahdee

3828 posts in 1601 days


#5 posted 06-08-2017 11:13 AM

Thanks guys. Brad, it will probably be 3” pour and since I am experimenting, I didn’t want to spend a lot of money on expensive epoxy/resin. From what I have read so far the resin is less clear and turns yellow.

-- earthartandfoods.com

View Gene Howe's profile

Gene Howe

9749 posts in 3262 days


#6 posted 06-08-2017 12:30 PM

Alumilite’s clear cast won’t yellow.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View builtinbkyn's profile

builtinbkyn

1921 posts in 774 days


#7 posted 06-08-2017 12:55 PM

Epoxy in a deep pour such as 3” will also not allow bubbles to evacuate. You’ll see them in the final product. That’s the reason people choose Alumilite, but it is more expensive than 2 part epoxy.

-- Bill, Yo!......in Brooklyn & Steel City :)

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mahdee

3828 posts in 1601 days


#8 posted 06-08-2017 01:29 PM

Thanks alot. I think I’ll experiment with resin and do the real thing with Alumilite. Expensive, but if it does the job, it will be worth it.
Thanks again.

-- earthartandfoods.com

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Nubsnstubs

1207 posts in 1564 days


#9 posted 06-08-2017 02:28 PM

Mahdee, you would have to do your casting in stages, probably at 1/2” thick each stage. You stated 3” thick, but didn’t say what the other dimensions were.

Alumilite is a good product, but your wood should be very dry wood to make a good bubble free casting. It should also be under about 40+ pounds pressure to have a bubble free casting. Humidity can also affect the casting and cause bubbles if not under pressure.

Call the Alumilite company and ask the person who answers the phone about your concerns. I believe her name is Evelyn. She has answers, but you have to ask for them. One thing I didn’t know was Alumilite Water Clear has a life of 90 days. That question was asked for no apparent reason when I called on another question, and her 90 day life scared me as it was into about 80 days from the time it was delivered to me, and I hadn’t even set up any of my stuff for casting yet. I thought I was going to have toss 3 hundred dollars worth of Alumilite…........ Jerry (in Tucson)

-- Jerry (in Tucson) www.woodturnerstools.com

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mahdee

3828 posts in 1601 days


#10 posted 06-08-2017 06:39 PM

Thanks Jerry,
Very much appreciate the information.

-- earthartandfoods.com

View MrRon's profile

MrRon

4491 posts in 3077 days


#11 posted 06-09-2017 01:10 AM

Check out http:// reynolds.com for all your casting needs. I have used a product called EpoxAcast 655, which is an aluminum filled resin. It has a durometer of 90D on the shore scale. They also have clear EpoxAcast 690. They are a distributor for Smooth-on products, http://www.smooth-on.com.

View mahdee's profile

mahdee

3828 posts in 1601 days


#12 posted 06-09-2017 05:42 AM

Thank you MrRon… I’ll definitely check into it.

-- earthartandfoods.com

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