J B Wield

[Corvette Reefer]

I got a cracked skimmer and my dad bought j b wield to fix it, is this marine safe.

[Corvette Reefer]

does anybody know if its safe? i really need to know so i can fix my skimmer now.

[iyachtuxivm]

I dont know for sure but I would guess not.

[Synergy]

Here is the pic of the JB water weld I used to create my aquascape:

http://www.captivereefs.com/forum/members/synergy/albums/synergy-s-pics/1303-pict0410.jpg

I did a lot of research and found out it is reef safe. Has been in my tank for months with coral, fish and inverts with no problem. If yours is the same it will work fine!

[Corvette Reefer]

Well mines not water weld its just normals j-b weld, at the bottom it says steel reinforced epoxy, but on the list of things it says marine, so i have no idea if its safe

http://www.repairproducts.co.uk/userimages/jbweld_lrg.jpg thats the stuff

[jay13]

even listings that say "marine" are in no way claiming they are saltwater animal safe. only that a marine environment will not destroy the bond that compound has created between the parts of broken equipment. having used jb weld before i can tell you it would not go into my system. it is a chemical reaction that causes the two part solution to become a one part "fix" for engine blocks and other metal surfaces. claiming any of these items is "safe" is just not a good idea. have they worked for some? sure, but some people also get away with all silica sand in a reef. others cram six tangs in a 30 gallon. does it work? well it does till it doesn't. why are we not using Cyanoacrylate and at at most even weldon (which is still questionable to me)? this is a skimmer, not a pressure rated piece of equipment. it does not need all that, just something to fill the crack up. if it is more than a crack it might just need to be pitched and a new one purchased.


1.)here is jb weld resins hazard chems...
Calcium Carbonate 40-50% 1317-65-3 ACGIH: TWA 10 mg/m
3
OSHA: PEL 15 mppcf
Iron Powder 10-20% 65997-19-5 ACGIH TLV 15 mg/m
3
OSHA: PEL 15 mppcf
Epoxy Resin 30-40% 25068-38-6 N/E
Aromatic Hydrocarbons 1-5 % 64742-94-5 N/




2.)here is the hardener hazard chems....
Calcium Carbonate 30-40% 1317-65-3 ACGIH TWA 10 mg/m
3
OSHA PEL 15 mppcf
Barium Sulfate 20-30% 7727-43-7 ACGIH TWA 10 mg/m
3
OSHA PEL 2 mppcf
Magnesium Silicate 5-10% 14807-96-6 ACGIH TWA 2 mg/m
3
OSHA PEL 20 mppcf
Titanium Dioxide 1-5% 13463-67-7 ACGIH TWA 10 mg/m
3
OSHA PEL 20 mg/m
3
Zinc Sulfide 0-5% 1314-98-3 ACGIH TLV 10 mg/m
3
Furfuryl Alcohol 1-5% 98-00-0 ACGIH TWA 10 ppm
Polyamide Resin 15-25% 68410-23-1 N/E
Aminophenols 1-5 % Mixture N/E



3.)here is waterwelds.....
Ingredient Name CAS Number Percent TSCA
Glycidyl ethers of bisphenol A resins 25068-38-6 10 - 30 Y
HMIS Health: 2 Fire: 1 Reactivity: 0 PPI: B
Tri(dimethylaminomethyl)phenol 90-72-2 0.5 - 1.5 Y
HMIS Health: 3 Fire: 1 Reactivity: 1 PPI: D
Zinc sulfide 1314-98-3 0.5 - 1.5 Y
HMIS Health: 1 Fire: 0 Reactivity: 0 PPI: E
*** ALL Ingredients in this product are listed in the T.S.C.A. Inventor


please note the resin (#1) does nothing until added to the hardener (#2.) Tri(dimethylaminomethyl)phenol (in waterweld) is a immunotoxin by itself.....

[bluwc]

Well if you just cracked the plastic, could you use superglue or some silicone instead that you know is reef safe?

[rmalone]

Epoxy in and of it'self isn't toxic, many of us use the two part putty to attach coral to rock or to build an aquascape. And that stuff cures while in the tank. That said I would be a little hesitant to use jb weld original in the tank without talking to someone who has done it.

My guess is that you could make your bond on the outside of the skimmer and let it cure and you would have little if any tank water contact with the epoxy, unless the crack is low enough to be under the water. I would search a little more and hit up a few more forums before I made the move.

[Synergy]

Hmm I wouldn't risk using that type. Can you return it? I picked up the JB Water Weld at Home Depot for like $5 or $6. I would go look for the type I showed a picture of or Aquamend. Those are both reef safe and cheap. Not worth risking your whole tank to safe a few dollars.

[Corvette Reefer]

even listings that say "marine" are in no way claiming they are saltwater animal safe. only that a marine environment will not destroy the bond that compound has created between the parts of broken equipment. having used jb weld before i can tell you it would not go into my system. it is a chemical reaction that causes the two part solution to become a one part "fix" for engine blocks and other metal surfaces. claiming any of these items is "safe" is just not a good idea. have they worked for some? sure, but some people also get away with all silica sand in a reef. others cram six tangs in a 30 gallon. does it work? well it does till it doesn't. why are we not using Cyanoacrylate and at at most even weldon (which is still questionable to me)? this is a skimmer, not a pressure rated piece of equipment. it does not need all that, just something to fill the crack up. if it is more than a crack it might just need to be pitched and a new one purchased. i have no ideaa what any of that means hahah

i guess the way i understand is it might be safe for a little while?

And for the skimmer it is not a crack its a big chip out of the spot that the collection cup attaches to the base:http://www.captivereefs.com/forum/hardware/need-help-repair-my-skimmer-13704/

i tried just loading the spot with silcone didnt work, idk what else to do, im not going to buy another collection cup.

[2pairs]

If you have all of the pieces it can be glued, I have some weldon if you want to glue it let me know.

[Corvette Reefer]

it broke into a ton of little ones i dont think i couuld be fixed

[jay13]

i have no ideaa what any of that means hahah

i guess the way i understand is it might be safe for a little while?

And for the skimmer it is not a crack its a big chip out of the spot that the collection cup attaches to the base:http://www.captivereefs.com/forum/hardware/need-help-repair-my-skimmer-13704/

i tried just loading the spot with silcone didnt work, idk what else to do, im not going to buy another collection cup.

it basically means no it is not safe. untested and not manufactured for the use you intend. no manufacturer guarantee like similiar products such as two little fishies two part epoxy. just because it resembles something used in marine aquaria does not mean it should be used. others may have used it, it may have been "o.k.". in the end either it works or all your stuff dies and the sand, rock etc. is contaminated. not worth it. a skimmer broken into little bits is trash. pick up another one.

[larryandlaura]

Sorry to hear about your skimmer.

[2pairs]

Is it a flat or curved piece?
How thick is it?
I might be able to make something for it.

[Corvette Reefer]

it is flat peice with a curve from the lip of the skimmer its not think its pretty small, that would be cool if u could do that for me! id hate to buy another skimmer cuz i just bought this off another guy at the last swap, and its such a small break it seams it would be easy to fix

[jay13]

it is flat peice with a curve from the lip of the skimmer its not think its pretty small, that would be cool if u could do that for me! id hate to buy another skimmer cuz i just bought this off another guy at the last swap, and its such a small break it seams it would be easy to fix

i just went to lowes for acrylic.... they have all sizes and thickness. you could easily fabricate something if it is a tiny spot. give it a try.

[2pairs]

it is flat peice with a curve from the lip of the skimmer its not think its pretty small, that would be cool if u could do that for me! id hate to buy another skimmer cuz i just bought this off another guy at the last swap, and its such a small break it seams it would be easy to fix

We can give it a try, just have Chris bring you over and bring the skimmer so I know how it all goes together.
If he can't bring you just let me know when you want to come and we will work something out.

[Corvette Reefer]

Alright sounds good, hopfully it will work. ill get chris to take me over.