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1708 Fiberglass Cloth: 17 oz Biaxial 3/4 oz Mat Back
Fiberglass Biaxial Cloth is a #1708 E-glass Biaxial (+/-45 degree) Cloth with 3/4 oz mat backing. The fiberglass tows are held together by light nylon stitching which do not affect the structural integrety of the cloth.
The flat non-crimped fibers yield reduced print-thru and higher stiffness than other woven fabrics
The mat backing adds extra thickness and makes for a smoother finished product when applied over scratches and dents. This cloth is ideal for repairs, tabbing, and reinforcing.
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1708 signifies the weight of each layer.
+/- 45 biaxial weave cloth is 17 ounces per square yard.
mat backing is 8 ounces per square yard
yields a total weight of 25 ounces per square yard
Does this happen to be shipped rolled or is it folded?
It is shipped in rolls.
What is the general thickness per ply with hand layup?
1708 with mat backing is @ .042" thick. To build up 1/4" of biaxial cloth with mat backing, you would need approximately 6 layers. (.042" x 6 = .252, or approximately 1/4")
how many layers would be required to make up 1/2 inch in thickness, using epoxy?
Hi Jed, its very hard to answer that because it depends on whether you are doing a hand layup or a vacuum bag setup, and depending on how much pressure is exerted to remove air and excess resin, we really can't pinpoint a number.
JD Tech Associate
Can this be used to build a fiberglass pool?
JD Tech Team
I need to add firmness to my boats upper deck after removing the teak. It is 7 by 13 feet. Will this product do the trick and if so, will one layer be enough?
Yes the 1708 biaxial with epoxy or polyester resin will strengthen up the area.
JD Tech Team
This product states it is a pack - can you clarify please?
When I bought it, the cloth was rolled up in a 3' roll and simply covered with brown paper.
This was delivered to me as a roll, but perhaps it depends on how much you order.
Clarification.... Brevity is key.Folded pack, not roll.
I am looking to make my own shower stall. I have seen this done with the mat before, however, I do not know how the product comes. It references PK? if I order the 3 yard product, what are the dimensions?
Janice,I think the product your looking at is a 3yard piece of material. Thus a package (PK) of material that is 38 inches wide by 3 yards (9 feet) long. I hope that helps.
This comes in a 38" by 3 yd package or 50" wide sold by the yard. Also the 38" width comes in 10 yard and 25 yard rolls.
Janice, The widths available for this product are 50" or 38" on the Jamestown website. You will have to check with Jamestown directly, but a short length is likely to be folded, and a long length is likely to be rolled.Building your own shower stall from scratch is quite an undertaking in terms of cost, along with the resin & hardener. To achieve a nice looking end result will require considerable time, even for an experienced user. However, Jamestown has all the necessary products at a fair price if you decide to pursue this project.Good luck
is this product equivalent to the west 738 biaxial fabric? I assume you put it in with the cloth up -- smooth side up?
Biaxial is what you want to use with epoxy resin. It's chopped strand mat on one side and woven on the other and very strong when laminated in multiple layers with epoxy resin. I only used west systems epoxy for one part of my job,and a different companies (non-blushing) epoxy for most of by bow rebuild project. Chopped strand side down. Epoxy doesn't like UV rays, so you'll need to paint or gel coat over if exposed to sun
Hi Jill,I'm sorry I do not have a specific answer to this. In order to verify equivalency I would email the manufacturing company w/ these type of questions. What side of material to use would also depend on what it is being used for, and the environmental conditions it would endure. For example: will it be used next to solvents,acids, high or low temperatures. Also if you use this in a specific way: sculpture or repairing boats etc, I'd talk to specialists who already do that kind of work/repair to get their opinion.
Fiberglass Biaxial cloth is stronger than the west 738 cloth. The West system is for light duty, surface layups. The Fiberglass Biaxial from Jamestown is ideal for heavy duty layups such as inside corners.You are right Gill - smooth side up!Derek
GENERAL FLOORING CO INC ATTN: DEREK LUGG
Can you tell me if this is used with the 105 epoxy resin and 206 hardener?
Gary E. Sims
No, it's used with polyester resin. It's csm with cloth stitched to it
i used mas epoxy had to thin it a little i was happy with the cloth
Sure, but the cloth is thicker and will take more than the usual cloth.
Gary, I have used West 105 (any hardener) and MAS epoxy with this cloth works fine. The biaxial cloth is stronger and does not unravel when cut. It takes about 128cc (16 pumps) of MAS resin for a square foot. The slow 206 hardener is especially good over 70F. BTW, Biosolv is good for cleaning the grooved fiberglass rollers. Put it in a container of Biosolv, wipe dry later and reuse. I use white vinegar for cleaing resin from my hands. Good luck!
Yes, I used West 105 & 206 epoxy building new amas (pontoons) for my trimaran, I used 1708 biaxial E-glass and also one layer of carbon fiber.Ron
Yes. I have tried several brands of Epoxy and have found that the West systems with the pumps is the most consistent and easiest to use. I have successfully used the 105/206 combo with several different cloths from 4oz to 8oz as well as biaxial cloth. Just need to make sure that you saturate the cloth fully.
Biaxial is the way to go with epoxy...I used west systems with it and it worked fine. I also used another local brand of epoxy as well and it worked great too. You can tint the epoxy with typical pigments used for fiberlass. You can also add cabosil or other fillers if you need a little thicker epoxy. I rebuilt an area on the bow that had rot and supports a windlass. The repair is super strong now. Epoxy doesn't like UV light so make sure and paint or even gel coat over, just sand a bit if you gel coat over.
That resin system would work fine for this cloth
the price sais per pack what is in a pack?
The pack just designates that these are pre cut, you can use the drop down menu to see the correct length you require..< a href="http://www.jamestowndistributors.com/userportal/show_product.do?pid=1441" target="_blank">http://www.jamestowndistributors.com/userportal/show_product.do?pid=1441< /a>
Not for all
Had a hard time to laminate areas with tight bends and difficult to sand smooth. There is a heavy single strand running in 1 direction that does not want to bend or smooth out. Chopped stand mat follows curves much better and sands better but not sure which would be stronger. I think this would be god for flat things not curves.
17 ft whaler
San Jose CA
My standard go to fabric
Universal use for most applications, for the average repair this is great. Some say it is hard to Wet out ? Not so! There is a degree of technique with anything you use. You can Wet the chopped side lightly then flip it over and Wet the top a little heavy then put the next layer on it , or you can Wet the surface a little heavy and lay the fabric on it , let it absorb into it a few mins then add resin as needed . Once you start the build up and the Wet out begins between layers it is much easier to maintain. Once you get some experience with it, it is a joy to use. Peel ply makes the finished product very nice, get a nice roller and SLOWLY toll out the air and excess resin, you will be very happy with the result.
Yes, but perhaps not from you.
This is not the first time I purchased 1708 from you, but it may be the last time. The roll I got this time was package well enough but when I unrolled the cloth I was disappointed at how frayed and distorted both ends were. There were also five pieces of masking tape on one end spaced about 8 inches apart on the chop strand side which could not be removed without pulling off a substantial amount of fibers. As a result, I ended up with way too much wasted material.
Franklin, MA 02038
Jamestown is service
In this crazy time, Jamestown was able to get the product to me in record time. Thanks to Andy from Boatworkstoday for leading me to this great company, and product. I used to use the strips over a larger area which was time consuming. The Biaxial Fiberglass sheets can be cut to size and easily applied with epoxy resin. Love that they came in rolls rather than folded. Makes for an smoother application. Great product, Great Company,
I was amazed that the item I ordered was on a full roll meaning it has no folds and makes it easier to work with and it works wonderful for my transom job I had ordered it for
Good product to work with
Worked out great for my needs
Straight shooter usa
It was a bit thicker than expected..my fault
I build a battery box for 4 12v batteries for my new electric motor. I wanted fiber glass that would reinforce and cover the base. This glass is pretty thick. I should have ordered thinner. I'm new to fiberglassing. The material arrived on time and neatly packaged. This Mat is better for large flat surfaces in my opinion. I will NOT hesitate to order from Jamestown again!
New Orleans, La
1708 is an amazing product!
I purchased a 1990 hurricane deck boat that had been neglected for years. The foam was saturated with water and most of the wood stringers was rotted or rotting. After researching many options I came across 1708. I am glad I ordered and used this product in my total boat rebuild.
Great product for fast thickness build and durability
First impression is that this is some thick material, great for fast lamination, or single layer over wood. I was pleased to see that the product is shipped rolled up, not folded, to avoid kinks in the glass. I used this as a glass layer over a replacement plywood transom on a dinghy. I will use it again as a tough deck lamination over plywood. I used west system epoxy, best to not overwork the material. Requires minimum fairing after installation. Great fiberglass!
Strong enough for the bumpers on my race car.
This mat is very strong. The fiberglass bumpers on my race car were cracking but not after I used this mat to help support them.Perfect product.
1708 Fiberglass Cloth: 17 oz Biaxial 3/4 oz Mat Back