Anyone Use This Epoxy?

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#10

Oh absolutely. I’ve been working with the designer who also specifically forumlates and sells marine quality resins. They just don’t have one with a low enough viscosity (yet) for infusing. That’s why I did the test last week with the Marinepoxy they sell.

Marine epoxies suitable for infusion are out there and rest assured we’ll use one. They’re not a whole lot different in their formulations though so most of what you read is just marketing babble.

The entire hull will be coated with a “barrier coat” which is another specially formulated epoxy coating called Interprotect 2000E from Interlux. I’ve used it before and it’s a fantastic product.

#11

Are these picture flow times with or without flow media?

#12

With. The fine stuff Werks sent me. More suited to smaller parts.

#13

You guys might want to try this epoxy from Aero Marine Products out of southern California. www.jgreer.com He also sells on ebay under the name AeroMarineProducts. I emailed him and he got back to me today with a question i had. I asked if his epoxy works well for vacuum infusion. He said yes, but buy the " 1 hour pot life" epoxy kit he has.

He buys his epoxy from Dow, or Shell, or one of the major epoxy manufacturers. He won’t say which one.

1.5 quarts is $24.
1.5 gallons is $68.
6 gallons is $240 = $40 per gallon.
15 gallons is $585 = $39 per gallon.

I don’t work for the guy. just thought it may be worth ones while to test their epoxy and see if you or anyone likes it.

#14

I just got a 1.5 quart kit with the 1/2 hour hardener. I will see how it works real soon.

#15

The shelves are empty on his e-bay store.

#16

I’ll be trying it out tomorrow, same epoxy with the #21 hardener.

Knotty, you might have had the wrong web page, i’m not sure. here is his ebay items…
http://search.ebay.com/_W0QQsassZaeromarineproducts

#17

That’s just too weird. I searched earlier and there was nothing listed. Maybe down for inventory or somethin’! lol

http://stores.ebay.com/AeroMarine-Products

#18

Knotty, from what i read on their ebay listing, that PolymerProducts infusion epoxy kit takes 5-7 days to fully cure. And is supposed to be dry to the touch in like 8 hours or longer. Man… TOOO long.

I’m trying to order more epoxy from Aero Marine Products, but on ebay he only takes debit or credit cards, and i pay by cash. I emailed him and he WAY over priced it in his email to me, 4 times his ebay price. I emailed him back so hopefully www.jgreer.com ( his business will correct that for me. I’m hoping.

#19

this is not uncommon for epoxy not be fully cured without post curing. room temp cure epoxies are usually 80% cured after 12-24 hours, which are ready for demold, however usually will take up to two weeks to gain all of its properties.

#20

so will an epoxy cure to the same strength given enough time at room temp as one that was post cured?

#21

Ok, sounds reasonable.

I also found this epoxy… very clear, 1 hr pot life, room temp cure, hard, can be oven cured to speed up the cure time. Room temp cure produces a resin that is stable under higher operating temperatures. Don’t ask me how hot you can get it once cured at room temp.

If i can’t get epoxy from the company i’m trying to get from, i’ll probably buy this epoxy resin. How do you think it would do for infusing small parts?

http://cgi.ebay.com/EPOXY-RESIN-FIBERGLASS-CARBON-FIBER-KEVLAR-MAX-CLR-HP_W0QQitemZ270167121131QQihZ017QQcategoryZ66914QQtcZphotoQQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Also what numbers ( viscocity and how it is measured )do you look for in an epoxy for infusing?

#22

Probably not quite as good as a clear poly resin system, which as long as your small parts are purely cosmetic, would be a better choice than epoxy, mean a lot less work, and would be far cheaper.

#23

I’ve used their Ultra Low Viscosity resin (e-Bay #270019321096) in infusions. It works as described . 5 hr pot life and 24 hr to demolding. It’s not perfectly clear (leftover in cup about 1" thick) but not bad. In a flat panel you can’t tell. That’s the resin I used for my sump pump cover.

I think you’ll find a thread on here with the CPS scale of viscosity. I know I seen it somewhere just can’t put my finger on it.

#24

huntsman makes some good infusion epoxies, the 8601 with 8602 hardener has a tg of 140 degrees with cure at room temp, viscosity is about 200cps, 24 hour demold time. if you want epoxy with a higher tg, the huntsman 8604 has a tg of 180 and its viscosity is about 400 cps, also room temp cure, demold after 24 hours. these can be purchased from northern fiberglass

#25

Although the adtech I use is very good (350cps), I would like something with even lower viscosity. I do heat the mold and the resin a bit to lower it even more, and it works well but I think I will give the Huntsman a try seeing as it has a lower viscosity, and that can’t hurt.

hojo, are you using the huntsman? what is the gel time?

#26

I was able to order more epoxy from Jgreer.com. slight mix up when i asked for a price… he quoted me for 6 gallons instead of the 1-1/2 i was looking for. He’s a stand up guy and doesn’t seem to be in business to make a killing off of the products he sells. Also i got 10ounces of yellow epoxy dye from him for $12. he has like 5 or 6 colors of epoxy dye he sells… yellow, red, blue, black, white and maybe one other like green possibly. I wanted it for mold making.

Six gallons of epoxy/w hardener combined, the price was $276 shipped. I don’t have the specs, but i’ll try and get them from him. I do know it’s very clear… as clear as the PolymerProducts Crystal Clear epoxy. Only very slight amber once it was fully cured 2 inches thick in a cup. The #300 epoxy with #21 hardener. has a pot life of one hour at 70F. 1 and 1/2 gallon kit cost me $77 total shipped to me.

#27

go here, you can check all the datasheets on the huntsman infusion resins: http://www.nfgsales.com/products/components_resins/infusion_resins . I recomend either the 8601 with 8602 hardener, or the 8604. the 8603 is not good for cosmetic parts. and the 8605 and higher require post curing.

#28

Any pics HOJO? The link says transparent but doesn’t mention color. Is there a tint thats noticeable when laminated?

#29

the 8601/8604 resin has a blue transparent hue, but is not noticeable in the part at all. has a very nice finish for the carbon. the 8603 was not good for cosmetic parts because the resin is a milky yellow, which makes the carbon look cloudy/yellowish, not pretty.