Jamestown Distributors
G10 Fiberglass Epoxy Laminate Board
G10 Fiberglass Epoxy Laminate Board
$7.99In StockSee Product Details
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COM-G10-1/4-2x3 -- Backing Plate 1/4 inch x 2 inch x 3 inchCOM-G10-1/4-2x3-6 -- Backing Plate 1/4 inch x 2 inch x 3 inch - 6 PackCOM-G10-1/4-3x6 -- Backing Plate 1/4 inch x 3 inch x 6 inchCOM-G10-1/4-3x6-6 -- Backing Plate 1/4 inch x 3 inch x 6 inch - 6 PackCOM-G10-1/4-12x12 -- Backing Plate 1/4 inch x 12 inch x 12 inchCOM-G10-1/4-12x12-6 -- Backing Plate 1/4 inch x 12 inch x 12 inch - 6 PackCOM-G101423 -- Backing Plate 1/4 inch x 2 ft x 3 ftCOM-553209 -- 1/4 inch x 3 ft x 4 ftCOM-G101223 -- 1/2 inch x 2 ft x 3 ftCOM-553210 -- 1/2 inch x 3 ft x 4 ft
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Product Details
G10 fiberglass boards are made of a special glass epoxy laminate that has extremely high strength. G10 fiberglass is used in marine applications due to its superior strength, moisture resistance, and excellent fire and electrical insulation. Rated FR-4 for up to 285 F continuous operating temperature.
Fiberglass boards make excellent non-corrosive backing plates for high load deck hardware or bond to engine room bulkheads to hold mounting brackets. Commonly used to mount equipment on and patch boat hulls, boat covers, and canopies.
G10 is similar in strength and density to Starboard, but because it is made with epoxy resin, it bonds easily using most two-part epoxies. For topside use, apply a coat of urethane paint over the epoxy-based composite to minimize UV discoloration and breakdown.
Available in backing plate sizes and full sheets. G10 boards are sold in 1/4 and 1/2 inch thickness.
Info & Guides
Technical Information
- FR-4 Grade fire resistance
- Low moisture absorption
- Rated to 285 F continuous operating temperature, will not melt at high heat
- Resists chemicals
- High impact strength
- High tensile strength
- High dielectric strength
- High flex strength and dimensional stability
Reviews
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11 to 25 of 29 Reviews
11 – 25 of 29 Reviews
Most Recent
Orange County CA
5 out of 5 stars.
Excellent quality
6 years ago
Purchased 2 sq feet of 1/4"" G10 fiberglass boards to use as thermal insulation between steel parts. The panels were cut into smaller pieces and isolated mating steel parts where mechanically joined. G10 has excellent thermal resistance with 1/4"" offering as much as 1"" plywood AND unlike wood has excellent compression qualities. The product was packaged better than a Faberge egg. I thought it was as fragile as glass and started to worry that I might have spent good money on an unusable product. Not so, it's tough as nails and machines beautifully. Very happy with product and might be ordering another soon. Highly recommended.
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Central Massachusetts
5 out of 5 stars.
Great Product
6 years ago
Used this to fabricate a mounting plate for my transducer, which I then adhered to the transom with 3M4200 (to avoid drilling). Starboard was to pricey for the small amount I needed. Very easy to work with.
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Lake Hopatcong NJ
5 out of 5 stars.
Good product for small repairs
6 years ago
I removed a leaking cockpit drain which emptied into the centerboard trunk of my catboat. I used this product to fill the floor cutout where the old drain was located. Worked very well, created a very strong floor repair and interfaced well with fibreglass mat.
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Fort Lauderdale FL
5 out of 5 stars.
Perfect Material for backing plates
8 years ago
We made thru-hull backing plates and upper rudder bearing supports from this G-10 sheet. It fabricates easily, is durable and strong, and will last the life of the boat. As always, our transaction with Jamestown Distributors was easy and the product showed up on time and as represented. We will order this product again from Jamestown Distributors in the future.
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Elk Mound, WI
5 out of 5 stars.
Fiberglass panel
8 years ago
Worked beautifully as a temporary patch to cover a soft spot on the floor of my fishing boat.
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Freeport, Maine
5 out of 5 stars.
Extremely rugged and easy to work with
8 years ago
Used the panels to build a bulletproof icebox. The last icebox aboard had failed after years of ice blocks being dropped from some height...it won't happen to this one!
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Freeport, ME
5 out of 5 stars.
Rugged and easy to work with
8 years ago
Used the panels to build a bulletproof icebox. The last icebox aboard had failed after years of ice blocks being dropped from some height...it won't happen to this one!
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Annapolis MD
4 out of 5 stars.
Solid rot free backing plates
10 years ago
I used 4 of these to build a 1"" block to use as a spacer to mount hatch hinges. That is why I found it as a ""con"" when the pieces were not all exactly the same dimension. But I was very happy when I was able to screw the hinge to the block with wood screws and did not have to through bolt them.
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SALEM, MA
1 out of 5 stars.
If I ever get them I will let you know
11 years ago
Don't know. Haven't got them yet after a month. I was promised they would be ""cut up and delivered by the end of the week"". That was two weeks ago.
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st petersburg, fl
4 out of 5 stars.
backing plate
12 years ago
plan to use as backing plates for deck mounted hardware on a balsa core decked sailboat
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Guam
4 out of 5 stars.
This worked a treat
12 years ago
I would have like 3/8 inch thickness but 1/2 was all you had and it worked
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MA
5 out of 5 stars.
G10 for hull repairs, backing blocks
13 years ago
Converted a twin inboard to single. Used G10 to close up holes from shaft tubes. Bolted and bedded them in using same holes that held in the bronze shaft logs. Also great for backing blocks as it does not deteriorate. Only drawback is G10 is hard on cutting and boring tools. Have friends who repaired keels and other FRP parts using this material due to it being stabile and flat. Stronger than original FRP.
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Boston, MA
1 out of 5 stars.
Ok Product Price, Shipping not so much.
13 years ago
G-10 is a great/if not better substitute for metal backing plates or whatever area needs reinforcement. JD has a fair price, but the shipping cost was OUTRAGEOUS! I paid $107 on ONE Sheet of 3/8"", 3' X 4' along with a small box of fasteners. BE AWARE OF THE SHIPPING COSTS ON OVERSIZED ITEMS! (BTW, I live in Boston, which is about an hour away form JD. Would have been cheaper/quicker to drive down and pick it up.)
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Cincinnati, Ohio
5 out of 5 stars.
Solid product
14 years ago
I used this product in the entrance way to my salon on a 1973 36' Chris Craft and it made a solid setup.
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Kiln, MS
5 out of 5 stars.
Great product
15 years ago
I used this to build up a surface mount for a trolling motor on a flats fishing boat that had no access for conventional mounting. It was laminated with west system epoxy to double the thickness then laminated to the deck with the same west epoxy but with colloidal silica added. It made a extremely strong mount. Use a new saw blade to cut.
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4 Ratings-Only Reviews
11 – 25 of 29 Reviews
Questions
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1 - 10 of 32 Questions
Q: LOOKING FOR 6'' X 4' X 1/8 THICK G 10 BOARD 2 PCS.
3 years ago1 Answer
A: Hi, that is not a size that we have. We don't have anything in 1/8"" thick.
3 years agoHelpful?
Q: I am installing new hatches in my deck. The original hatch were fitted into a molded fiberglass area that made them look flush. The new ones have a frame that I need to bolt in this notch area. I need to reinforce the area below. It's about 3' by 2' . Can I use this by glueing the board with thickened resin on the underside. The underside in unfinished fiberglass.
4 years ago5 Answers
A: Yes these little fiber glass patches will work perfectly for what you are doing.
4 years agoHelpful?
Q: What is the surface finish like? Does it need to be sanded or does it have peel-ply on it?
4 years ago9 Answers
A: Has peel ply and smooth finish. Get Outlook for iOS< https://aka.ms/o0ukef>
4 years agoHelpful?
Q: I'm planing on using G10 as a replacement piece for the bottom of my fiberglass muffler. The old bottom was fiberglass actually more resin than glass and crack and fell apart letting a lot of water into my bilge. I would cut it to size and glass it in. Should be better than new.
4 years ago4 Answers
A: Don't really know. I am using as backing plates for my taffrail. An later for bow rails
4 years agoHelpful?
Q: I'm planning to epoxy a backing plate of G-10 on the underside of a portion of a 3'x5' glass/plywood/glass access panel. I intend to reattach the leaning post to the panel afterwards. Will the G-10 accept stainless self tapping screws if I drill a pilot hole? Alternatively I was considering epoxying nuts into the panel for bolts with fender washers. Appreciate your thoughts.
5 years ago4 Answers
A: When mounting bolts in G10, I put the heads on the attached side. You must be careful positioning the bolts so they will line up with the attachment plate. A spacer almost as long as the exposed thread can be used to hold the attachment plate in position until the epoxy sets. (use small clamps) If the bolts have hex heads they will not spin after the epoxy sets. If the substrate is thick enough the heads can be accommodated in the substrate and not in the G10. Other than that I tap the holes or through bolt with washers.
5 years agoHelpful?
Q: COULD THIS BE USED AS CORE TO REPLACE THE PLY IN MY JEEP FIBERGLASS BODY. IT SEEMS LIKE IT WOULD HOLD SEATS BETTER IN A ROLL OVER.
5 years ago3 Answers
A: G10 is much stronger than plywood so the swap would be appropriate. Use half the thickness of the plywood. John Marples, Multihull Designer, BSME
5 years agoHelpful?
Q: Do you recommend using 5200 to bond G10 as a mounting plate in the engine room for hanging a shore power cord? Would thickened epoxy be a better choice?
5 years ago4 Answers
A: I would always go with thickened epoxy with G10 - especially if you are anchoring it to fiberglass. I have had 5200 come loose over time if it is in a hot dry place with lots of vibration , and it does not have some other fastening. G10 seems a little overkill for a power cable unless you are a large boat and this is a heavy cable and you need some structural support. G10 is like working with sheet aluminium. You can burn through a number of blades in your jig saw easily.
5 years agoHelpful?
Q: Can I purchase a 6' x 6' x ¼"" or ½"" piece of Fiberglass sheeting. If so could you send me a quote?
6 years ago1 Answer
A: Largest we have is 3' by 4'
6 years agoHelpful?
Q: I would like to use G10/FR4 for backing plates on my Niagara 35 sailboat. I wondering if 1/2 inch thick is enough strength for purposes? Also to bond together two 1/4 inch board , do I have to send it bonding surfaces ( boards have a high shine surfaces). Thank you Robert Mroz
6 years ago5 Answers
A: This stuff is super strong and I doubt you need 1/2"" board for backer plates. I'm not familiar with the Niagara, but I'm guessing that your hardware is attached to the deck and the deck is probably 3/8"" to 1/2"" thick. The backing plates are really to spread out the load from the washers underneath the deck. It creates one large ""washer."" I don't think I would use 1/2"" plate on any sailboat smaller than 70 feet. But, if you use 1/2"", I think I can guarantee the fittings will never pull off the boat; so if you have room for that thickness... the only other consideration is cost. As far as ""bonding"" goes, it would be a good idea to rough up the surfaces on the 1/4"" boards; but I think doing that is too much trouble and not necessary. For a baseline reference, I would add that I have owned four boats and I do virtually ALL of my own work, but my expertise is that of amateur who has been fixing and building things since I was five. I also do a LOT of my own ""engineering,"" such as the construction of a 16' tall x 10' wide wooden gantry to pull the crusader powerplant from my Tolly 26 (a work in progress), If I build something, it's NOT going to break... meaning ""overkill."" Using the 1/2"" would definitely be overkill. If using the 1/2"" board does not slow down your work and if you can tolerate the cost, okay. But bonding two 1/4"" boards together is a lot of mess and trouble. I would never do that. I would just use 1/4"" board and I'll bet Jamestown would say the same thing. Good luck! Brian Edmondson
6 years agoHelpful?
Q: What is the thru-thickness CTE? (I see that in-plane CTE is in the range of 9 to 13 ppm/C)
6 years ago2 Answers
A: CTE (coefficient of thermal expansion ) is something only the manufacturer is going know or be able to test for, it is measured in ppm for composites.
6 years agoHelpful?
1 - 10 of 32 Questions