Fiberglass resin

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OwenZ

Member - Posts: 44

Joined: March 20, 2003

Location: United States

Posted: March 20, 2003 at 5:55 PM / IP Logged

Anyone here use epoxy resins for their fiberglass layups? Is a a cheapo scale bought at Target good enough to weigh out the materials for the resin?

Thanks,

Owen

audiomechanic

Silver - Posts: 388

Joined: November 09, 2002

Location: United States

Posted: March 22, 2003 at 8:18 PM / IP Logged

most of the time you just have to get a marked measuring cup......this will give you the amount you need to know for the right percentage of MEKP.....as for the resin....just use the polyester resin... it is usually less expensive and does what you need it to do

OwenZ

Member - Posts: 44

Joined: March 20, 2003

Location: United States

Posted: March 24, 2003 at 8:32 AM / IP Logged

Thanks!

I have some foam that dissolves with poleyster resin (so I discovered by accident). I just wanted to know about the epoxy resin so I don't have to buy a scale.

Owen

audiomechanic

Silver - Posts: 388

Joined: November 09, 2002

Location: United States

Posted: March 24, 2003 at 6:40 PM / IP Logged

you can get many types of foam that dont melt with the resin they are mostly a 2 part.... they are urethene foams....you can get them in different pound kits.....just get the 4 pound kit and you will be good.

OwenZ

Member - Posts: 44

Joined: March 20, 2003

Location: United States

Posted: March 25, 2003 at 12:03 PM / IP Logged

Yeah, right now I'm using the other resin that doesn't dissolve with the polyester resin. It's just that I had this starter kit, used the wrong resin, and still have some blocks of foam left. Oh well, no biggie.

Thanks for your help!

Owen

lycoming

Member - Posts: 7

Joined: April 18, 2003

Location: United States

Posted: April 18, 2003 at 1:11 AM / IP Logged

Owen, The scale at wal-mart will work. epoxy resins are on average 30% stronger than polyester so you can use less glass to get the strength you need (less weight). Don't use graduated cups to mix. You must weigh it out because the resin itself changes volume with temp and humidity but it still weighs the same. Other resins don't do this.

OwenZ

Member - Posts: 44

Joined: March 20, 2003

Location: United States

Posted: April 21, 2003 at 8:58 AM / IP Logged

Thanks Jake,

I was worried about the accuracy of the cheapo scales but I'll give it a shot!

Owen

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Fiberglass resin

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