dryloc with fiberglass (480gal tank build)

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Bsixxx

Redtail Catfish
MFK Member
Jul 17, 2006
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Should I mix dryloc with fiberglass resin for my 480 gallon plywood/glass build in my monitor enclosure?

or just use fiberglass for itself?

Also if i just use fiberglass. what kind of epoxy can i use with it that comes in black color?
help needed, never built a tank before, and going MONSTER, don't want leaks or breaks..
 
Dude. 4000+ posts and you can't use the search function?

Why would you even consider using dryloc with fiberglass? and fiberglass is typically done with polyester resin, not epoxy, although epoxy resin will work. Any resin can be tinted with appropriate pigments.
 
Yeah, cut the drylock altogether. Go with a polyester resin and fiberglass with tint.
 
cvermeulen;3605855; said:
Dude. 4000+ posts and you can't use the search function?

Why would you even consider using dryloc with fiberglass? and fiberglass is typically done with polyester resin, not epoxy, although epoxy resin will work. Any resin can be tinted with appropriate pigments.

that doesn't get me anywhere, just like your post/
I need detailed description of how to use this. I have no experiance what so ever.

where can I get this resin, what is it called?
how much do i need for a 6'x4'x30" tank, plywood with front and side viewing window made of glass.
Is it durable to withstand a monitor lizard, or it's claws?
I need answers to questions like these, if you can send me a link to threads already answering these questions i'll apologize..
 
Bsixxx;3607263; said:
that doesn't get me anywhere, just like your post/
I need detailed description of how to use this. I have no experiance what so ever.

where can I get this resin, what is it called?
how much do i need for a 6'x4'x30" tank, plywood with front and side viewing window made of glass.
Is it durable to withstand a monitor lizard, or it's claws?
I need answers to questions like these, if you can send me a link to threads already answering these questions i'll apologize..

It's called resin. Find a local fiberglassing company, and ask them. There are several types. Or search this forum for "plywood", someone had an excellent description, I would for you, but I need to head to work shortly.

You'll also want to put something like blue max or pond armor over the cured fiber glass resin.

How much? Depends on how much you 'glass the tank, and your technique. Can't say for sure.

No idea on the Lizard, I'd think he'd claw through any coating eventually. Maybe their is a epoxy coating that is hard enough?
 
cvermeulen;3605855; said:
Dude. 4000+ posts and you can't use the search function?

Why would you even consider using dryloc with fiberglass? and fiberglass is typically done with polyester resin, not epoxy, although epoxy resin will work. Any resin can be tinted with appropriate pigments.
Yes but polyester resin is not waterproof when immersed full time and needs to be covered with a gelcoat for this reason so just tinting it is doing you no favors where as epoxy resin is 100% water proof and can just be tinted with a pigment. Not to mention epoxy resins are generally a superior product in strength, flexibility and durability. Its down side is it is generally dearer.

Bisx. Which ever you choose is up to you but as I said in your other thread.
I would either use an epoxy type resin like West Systems epoxy or Bote Cote. Both are great epoxys but I am unsure if you can get Bote Cote outside of Australia(Edit:They do ship internationally). West Systems is available in many parts of the world. It is a great product but I find Bote Cote is a little easier to work with and is free of the side reaction amine blush. Check for a local boat builder, especially one who works with timber boats. Hopefully, they will at least have an equivalent. Give them a rough plan of what you are building and they will tell you what quantities you will need.
If you use a Polyester type resin, I would cover it with a tooling gel coat used for making molds. It is a lot harder than normal gel coats. I would definitely use glass matting with both epoxy or polyester.
Remember, polyester resin is not water proof so a scratch through the gel coat to the glass matting layer will eventually cause dramas(Not a problem with fish but something to consider when you are housing an animal with claws). Epoxy resin is water proof so every coat including the layers with matting will hold water. A scratch into the matting layers wont cause any drama unless it goes right through it.(highly unlikely)
One tip I could give you for the worrying factor of the monitors claws is to maybe mix the last couple of coats of epoxy/gel coat with sand so it is harder to scratch through. An old trick from doing non slip floors in boats.
 
greenterra;3607411; said:
Yes but polyester resin is not waterproof when immersed full time and needs to be covered with a gelcoat for this reason so just tinting it is doing you no favors where as epoxy resin is 100% water proof and can just be tinted with a pigment. Not to mention epoxy resins are generally a superior product in strength, flexibility and durability. Its down side is it is generally dearer.

I'm getting so sick of this myth. Do you have any sources to back that up? Gelcoat and resin are the same thing. Polyester resin is waterproof when cured properly. Many prefab ponds are made from fiberglass reinforced polyester.

Bsix - forgive me for being blunt, but if you can't find these answers by searching, you're not trying very hard. Your original post didn't really ask the questions you wanted answers to, either.

Polyester is commonly known as fiberglass resin. Boats are made from fiberglass. It will be tough enough for your monitor's claws in my estimation - it may get scratched but it won't come off. Read through the build in my signature. I just finished building a 4x8x30" tank with polyester and gelcoat. You'll need likely a couple gallons of resin and a few yards of chopped strand mat to do what I did. fiberglassforums.com is also a great resource.
 
Bsixxx;3604414; said:
Should I mix dryloc with fiberglass resin for my 480 gallon plywood/glass build in my monitor enclosure?

or just use fiberglass for itself?

Also if i just use fiberglass. what kind of epoxy can i use with it that comes in black color?
help needed, never built a tank before, and going MONSTER, don't want leaks or breaks..

You do not need to "mix" Drylok with any sort of resin. Use one or the other. The only situation where I would recommend using both (but not mixing) is perhaps epoxy, polyester or vinyl ester resin for the floor and first foot or two of the cage walls. This would give the most moisture resistance where damp substrate will sit and the area of the walls right above the substrate where the most scratching would occur. Drylok could then but used for the rest of the cage walls to save money and time on application.

For a a typical Monitor cage one really does not need to use fiberglass mesh, cloth, roving or mat.

If you want to use it for peace of mind then make sure to select one of the more open mesh fabrics to use along with Drylok. The fiberglass mesh that goes over foam before applying synthetic stucco is the type of fabric I'm talking about. These are designed to be used with cement based finishes like Drylok.

If you choose epoxy, polyester or vinyl ester resin then you would use standard fiberglass cloth, mat or roving. If you go this route keep in mind that even though mat is cheaper than cloth, for example, it takes more resin to wet it out which makes them cost about the same.

Again, Drylok and the three resin types I mentioned have been used in Monitor enclosures without any sort of reinforcing fiberglass fabric. Adding them is not necessary per se but they will add strength to corners and joints. If you're going to use an inexpensive polyester like you pick up at an auto supply store then I think some lightweight cloth is a good idea as these polyesters can be a bit brittle without reinforcement.

Drylok won't be as durable and scratch resistant as any sort of resin but it is very inexpensive, easy to apply and super easy to repair.

If I were building a plywood monitor enclosure I would probably rule out stand polyester and instead either use Drylok, vinyl ester or epoxy resin.

If the species in question needed a lot of moisture I would use a resin. If the species came from a more arid environment it would be hard to look past Drylok for its combination of low cost, ease of application and in particular ease and quickness of repair.

I have one plywood cage sealed with Drylok but it only houses a Moluccan Python which certainly is not capable of scratching. Still, I am impressed with the durability. I'm not super crazy about the textured finish.

A couple of years ago I took a scrap piece of sheet metal and painted it with Drylok and let it cure for several days. I have flexed that piece of metal into a semi circle hundreds of times and have clamped it in a vice and scratched at the finish with the corner of a chisel. Long story short, it is remarkably durable stuff for a 1k waterborne.
 
cvermeulen;3607639; said:
I'm getting so sick of this myth. Do you have any sources to back that up? Gelcoat and resin are the same thing. Polyester resin is waterproof when cured properly.
lol. This is no myth and it is not something new with polyester resins. That is why it is not used in timber boat construction.
Yes Gelcoats are made of resin but Gelcoats differ from resins in that they contain additives, pigment and usually less filler to give the most durable surface possible and a better water barrier.

For a source to back that up. See link.;)http://www.zahnisers.com/repair/blister/blister1.htm
 
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