Transom layup schedule. 5oz mat and a layer of 1808oz mat to core.

Transom layup schedule 1 foot long which had an area approx 6 inches of delamination around them. The layup schedule that we used went like this: Jan 23, 2006 · I Am In The Process Of Adding 2 Ft To A 24 Ft Hull In The Transom I Will Be Using System Three With 1708 45 Biaxial Stitchmat And 18 Oz Woven Roven The Original Hull Is About 3/8 Thick . I have already purchased chopped strand mat Apr 11, 2023 · Closed cell foam, on the other hand, requires creating a layup schedule to reinforce the foam with fiberglass cloth for structural integrity, while plywood must be completely encapsulated to prevent water absorption. (8"x10") P/S (SAME SCHEDULE FOR BONDING BOTTOM OF BACKSTAY FITTING TO HULL) TRANSOM: (STRAKE "A" LAYUP SCHEDULE) TOP OF COAMING MICROBALLOONS & RESIN, OR EQUIVALENT 1 PLY 225 G/M (3/4 OZ. I additionally will layup a horizontal member that will bridge from port side to the starboard side on the interior side on the new transom. 9K views 10 replies 5 participants last post by 66122 Jul 6, 2024 gulfcoaster Discussion starter Jul 17, 2021 · I am relatively new to fiberglassing and I wanted to get some input from the veteran builders out here. Frank Jun 25, 2006 · In checking the stringers on my 22 Mako (and I'll post pix & update my project page tomorrow), I found an old repair to the hull about 4 feet forward of the transom, between the centerline and first strake. I did read the recent thread about the problems with epoxy bonding to the Nida-Bond and I am only using polybased resins and fillers during the lay up process. I was afraid the compression from the porta-bracket may have been too much for a composite. Transom (Replacing from inside, leaving exterior skin intact) Based on research from this site, I will be using the following layup schedule: 2 layers 1. Motor side of trans, 1/4'' thick glass prefer bi-ply or matt/roving. In most center console boats, the transom area requires additional reinforcement. Do you core the actual transom like a normal transom would be or does it become a false transom and the bracket transom is all that is needed? Also what is the layup schedule on your bracket stringers? Apr 2, 2009 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 22,544 Jun 3, 2007 · Detailing, Painting, & Fiberglass - Fiberglass Layup - installing new stringers and transom. I’m doing the job from the outside and I’ve raised the transom from 20” to 25”. Anyhow, I was wondering what would be a typical layup schedule for a boat like this and i'll throw out my first best guess for doing it in polyester: -1708, mat side down- -1/2" balsa core- -bedding putty- -1708, mat side down- -sanded inner Jun 22, 2019 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,343 Long post, sorry, but I've added pictures! I’d like comments and opinions on my proposed glass layup for the new transom I’m installing in my 1976, 20’ SeaCraft SF. . With that said, closed cell foam is much lighter and should be used when you don’t need the structural strength of Coosa board. Your layup schedule of the transom, again would be plenty. I just ground out any of the areas from the inside and then built the glass back with larger overlapping layers of glass. Discussion in ' Fiberglass and Composite Boat Building ' started by Jmooredesigns, Jan 20, 2013. Transoms, Floors, and Stringers The transom, floor, and stringers in a boat are, collectively, the most important elements of its construction. I remember seeing on the site a schedule but I cant find it. 5" core (3/4"->CSM_> 3/4") with each layer of marine ply coated with epoxy until they couldn't absorb more. Cover with 1/4'' of glass. I'm using total boat epoxy not poly. My entire deck on a flats skiff 22 foot by 8 foot is the 5 lb density corecell with 36 oz biaxial infused. This content is copyrighted, and cannot be reproduced in any form without written permission from the author. I plan on replacing my transome on my 1989 seapro 18cc this fall and would like to start buying materials a little at a time and have it all stocked up in the shop before I start. Fillet Feb 10, 2024 · Layup schedule, balsa core rebuild??? stylemismatch, Aug 23, 2013, in forum: Boat Design Replies: 2 Views: 3,586 stylemismatch Aug 23, 2013 Apr 24, 2012 · What would be the typical layup schedule for a structural rebuild using epoxy (weights/types of glass)? I am redoing the transom, stringers, and deck on an old 60's runabout. Then used poly on the inside skin and transom with some csm in between. Add another 1/4'' of glass. My friend did his transom on a boat and ended up paining on the gelcoat with a brush. Detailing, Painting, & Fiberglass - Hull layup schedule. Beveling Fiberglass in a Transom Repair The fiberglass thickness determines the bevel length. Most go coosa for the screw retention though. I currently have a 1/4" thick solid glass transom (that is fortunately flat). Can't find any signs of rot in the transom at all. May 20, 2016 · Hey xj, I think your layup schedule looks fine 'cept you don't need to tab in the transom core. I have stripped it down to the bare hull, lots of grinding to remove the majority of the stringer tabbing, etc. Otherwise go with the corecell. Just FYI, Polyumac Aircell T60 is similar to Divinycell in a 6lb weight. ) From all that I've read, if going with epoxy, the addition of CSM to the layup schedule does not add strength, only thickness. 25in. Aka Polyester vs Vinylester vs Epoxy Resins. Hopefully the real experts will chime in here and provide more knowledgeable advice than I've given. What do you recommend for the outer layup schedule of glass? Was thinking 1708/ CSM / 1708 / CSM then fill, fair and paint. IIRC the spec is 2 1/8 min to 2 3/8 max for Mercruiser keyhole. Transom skin to core use a layer of 1. Long post, sorry, but I've added pictures! I’d like comments and opinions on my proposed glass layup for the new transom I’m installing in my 1976, 20’ SeaCraft SF. Two layers of 1708 should get you additional 1/8" you need for the 2" minimum on the transom. Prime the plywood 2. Apr 5, 2010 · Ok, I want to use epoxy on my stringers and transom for glassing. How should I go about glassing this in? I'd prefer to use Poly in lieu of Epoxy due to the fact that the boat was made with poly, and I don't want to invest a ton of money. Sep 4, 2018 · When you lay up the panels on a table how do you get the camber? Use some type of mold? Or do you have a top for the table designed for that? Curious how to get camber in a deck/floor you are laying up. Factors to consider are: Dec 17, 2018 · Transom and stringer layup schedule Discussion in ' Fiberglass and Composite Boat Building ' started by Aransas Flats Rat, Dec 17, 2018. This structural member will most likely be a laminated piece Oct 27, 2012 · WOG's 'original' stringer, transom & deck layup schedule graphics in his signature line, has been revised recently (Feb 2013 I think) & now reflects that the 1708's 3/4oz CSM backing is sufficient on the stringers. Importantly, the transom angle and pitch were preserved, maintaining original performance characteristics while accommodating the addition of an aftermarket swim platform with a built-on engine bracket. 5in thick transom ply lamination w a layer of CSM before you install it, the rest will get you close to the desired 2. Apr 8, 2017 · You only need high density coosa if you are going to put screws into it. I am going to add an aluminum flotation style bracket with 30" setback for a pair of twin 300 hp outboards. I have completely ground out all delamination Jan 17, 2012 · The transom has a one inch setback in the center section, which forms a pad for the motor mount area. . For example if boat takes on water due to transom failure and boat capsized they would pay for entire boat motor and gear. It's where the failed repair is basically peeling loose, creating a 18 inch 'crack' running lengthwise. 1. i Have Tapered Back The Hull 12in. What Would Be The Best Layup Schedule For This Project . Is that enough glass on the exterior? Nov 28, 2010 · Should I build the transom itself (wood with layers of glass between) then bed into the inside using glass and an epoxy mix then lay up over top of the whole thing after filling the gaps? Or layup each section tabbed out? FYI this one will have a 2. Layup questions - Redoing 2004 Velocity transom. I have the corecell, I think 1/2 in spanning 31" the deck and I don't Dec 10, 2006 · Lay-up Schedule Discussion in ' Fiberglass and Composite Boat Building ' started by scb, Dec 10, 2006. Just laminate 3 layers of 1708 in increasingly bigger overlaps onto the hull bottom and hull sides - 4", 8" and 12". FWIW, coho GHOST. Two knees will be extended for the top of the new transom ply down to the stringers in the bilge where they will be tabbed into. 5 oz mat with thickened putty at the edges 2 layers of ¾ coosa 26 with one layer of 1. Going back and forth on Coosa or 3/4 marine ply. This is the reason I think Manufactures charge premium or less. Use this schedule to create the order of operations you’ll use to complete your layup successfully. Sandwich the plywood core togeather with a layer of 1. If done right, it will still last forever and it will Aug 14, 2025 · The materials and layup schedule were selected specifically to ensure long-term resistance to water intrusion and structural fatigue. Nov 10, 2011 · Chuck, Your comments are greatly appreciated . EDIT: As noted in AllDodges post below, 2in to 2. I am also dead set on Seacast so with that in consideration, what should be my layup for the inner transom skin? Aug 11, 2013 · I am Replaceing a Transom on a 1990 Cig TG, converting it to Bravo from Trs. Wood lasted 20 years and would have lasted longer if some preventative maintenance would have been done. 25in is the spec. I am replacing the transom on a Mako 22 cuddy with epoxy and coosa, I have two big questions. These boats are being built to carry the USCG approved 25-30hp motors, which come in at about 180 pounds (Tohatsu 4 stroke), and they work very well. 5 in thick. Im going to Bond 3, 1/2 Plywood with 3/4 OZ Mat, but I need to know what Material layup to finish. com/boating-forum/895601-fiberglass-layup-schedule-transom-core-material. Nov 29, 2017 · On my inboard to outboard conversion, I need help determining the thickness and layup schedule for the transom modifications to be able to handle the outboards. I am in about same steps as you on my 81 right now and was also wondering about adding transom tie downs. go figure). The distance of the cut line (and the bevel) back from the corner is 12 times the Mar 14, 2025 · A well-designed lamination schedule considers material properties, stacking sequence, and thickness distribution. I’m comfortable working with epoxy and 1708. Need help with transom thickness/layup modunlavy, Nov 29, 2017, in forum: Boat Design Replies: 13 Views: 11,838 Nov 22, 2019 · Hi, I am sure these questions would have been asked and answered already, but I am unsure on what search terms to use to find the info I am after. I went with wood instead of a composite. Should i alternate between cloth and mat or all of one then capped with the other. This came from advice from the Aug 18, 2014 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,371 Aransas Flats Rat Jan 3, 2019 Jun 20, 2007 · Layup schedule for Nidacore deck joists?? reelpleasure, May 4, 2014, in forum: Fiberglass and Composite Boat Building Replies: 3 Views: 4,841 Sep 6, 2010 · FiberGlassics® would like to thank Jamil Mehdi for this article. I was thinking about adding some above the waterline by glassing in some new wood to the interior of the transom above the swim platform mounts, but I don't think it will look very good. Jun 22, 2019 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,406 Mar 3, 2016 · I would like to see the difference for the layup schedules of Cored and Non Cored Hulls. Jun 18, 2021 · Something that really confuses me, is layup schedule for the transom and stringer tabbing. What size boat is this and size motor you plan to run and are you using polyester or epoxy resin? Alsoi, it's advisable that you layer csm between the layers of WR. thehulltruth. html Dec 26, 2016 · I have had this hull on the back burner for a (long) while, finally getting to it, it had a lot of chop strand layed up poorly on the inner transom skin & knees, which turned out to be the result of deleting the splash well by the original owner, so I have began to grind back the chop to find the original glass, what would be a good layup schedule for the inner skin & knees? I have plenty of Jul 2, 2024 · Stringer fiberglass schedule Jump to Latest 1. My stringers are also corecell but that depends on your boat and design, my transom is 26lb coosa 1. Possibly 17oz A laminating schedule keeps track of the individual plies and the fiber orientation of each ply in a laminate stack, including the weave style and the weight of each ply. Jun 22, 2019 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,613 Dec 31, 2023 · Detailing, Painting, & Fiberglass - Rebuilding velocity transom. I’m using As some of you may know, I am ready to layup the leaning post mold that I made and am a little overwhelmed by all the different types of glass out there and every site I go to reccomends a different material (almost always the most expensive. Does anybody have any calc formula on how much to order? It is a 16 ft Bayliner, with two stringers. I've only done deck panel back sides and some kit cars long ago so I've only got minor experience with glass. From Dec 6, 2017 · https://www. Jun 2, 2008 · How many layers of fiberglass should I use to layup the Transom to the boat sides ? Engine mounts ? Stringers ? Also is all mat ok or should I do Mat, Roven, Mat, Roven Thank you The findings might not be made public, but after prop posted the transom layup schedule on about page 8, you can make an educated guess. Apr 18, 2023 · Detailing, Painting, & Fiberglass - Proper Transom Buildup - So I decided (at the recommendation of Mr. As far as abrasion and puncture resistance goes lay up a couple rest panels about 1’x3’ using the same core you are using. My sole was rotted and the transom is bonded seperate into the hull. Jan 19, 2014 · What does Warranty cover for 8 yrs? He said they used 4 layers of csm im waiting on the layup schedule. I thought he was crazy but it came out nice and smooth. Bi-ply is best. Bond in another 3/4'' core board pc. 3 layers of 1708 is a lot, especially with using coosa as a core. So redoing a transom and wanted advice/review on layup schedule for the interior of the transom. May 2, 2013 · MuddyWater, welcome to the forum. Feb 21, 2016 · Except for changing the PL in your layup schedule, and wrapping the 1. The inner outboard well will be trimmed and all gel coat removed. Mar 23, 2017 · I can offer my opinion for a transom layup schedule. First, the hull mold for this size boat should all be the same layup, bottom, side and transom, so that over time, the whole mold will expand and contract evenly with changing temperature. 5oz mat and a layer of 1808oz mat to core. What I have done so far is as follows: 3/4" transom core removed and replaced with 1. So the thought is to go with biax cloth instead. Feb 9, 2017 · Detailing, Painting, & Fiberglass - fiberglass layer rule of thumb - just can't remember what material and number of layer we have to use for lets say, stringer replacement and transom ? 1708 mat x 2 or 3 then 1 roving for 1 layer ? Should I build the transom itself (wood with layers of glass between) then bed into the inside using glass and an epoxy mix then lay up over top of the whole thing after filling the gaps? Or layup each section tabbed out? FYI this one will have a 2. That is the distance from the corner to the location of the cuts for removing the fiberglass skin. Also the non Liner and Liner additional materials. Background: Hull is a 14 foot Ray Hunt designed hull built by O'Day in the early 60's. Dec 4, 2009 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,377 Apr 15, 2012 · When I did the transom on my 21 I ran into the the same problem. Glass Dave) to build my transom from three layers of 1/2” Marine grade plywood, with each plywood layer having a layer of old-school 24oz Roving between them. Aug 22, 2008 · Detailing, Painting, & Fiberglass - Any suggestions for a layup schedule? - Hi All, My buddy inherited molds for a 20' OB speedboat that seem to be in pretty good shape. Apr 10, 2009 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,183 Nov 25, 2009 · Re: Deck, Stringer, Transom Layup Help For the transom- I glassed my ply together with poly and csm, then poly and csm the outside with cloth tape around the edges making the transom piece one solid sealed piece. This is Apr 5, 2017 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,559 Sep 5, 2017 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,556 Aransas Flats Rat Jan 3, 2019 Sep 26, 2016 · I have a small project going on and am getting conflicting information about stringer layup schedule. I’m using Regarding the transom tie downs. Tell me what you think: Transom Plan - rear skin - 3oz CSM - 3/8 marine ply - 3oz CSM - 3/8ply - 3oz CSM - 3/8 ply - layer of 1708 - tabbing out to 12" - layer of 1708 - tabbing out to 9" - tabbing out to 6" Stringer Plan May 8, 2012 · There is the framing for the start to my storage boxes/baitwell. 5 oz mat sandwiched between 4 layers of biax mat (1808/1708/1808/1708 in that order) Questions: I found out from this site that after I left the new guys modified the stringer and transom layup schedule and bracing structure and some come apart late in the 90's. Jan 4, 2024 · When using it in transoms, it doubled to 1. Second, do not use a bidirectional fabric so close to the gelcoat. Any help or advice would be appreciated. 5 hanging off of it with about 10" setback. Compromising even a single one of the three puts the safety of the vessel Apr 20, 2020 · Areas that benefit from a different bias include the bow section, the chines, transom corners, all tabbing. I don't want to start start any forum wars here; but May 28, 2021 · Transom lay up process advice Discussion in ' Fiberglass and Composite Boat Building ' started by Cashinhand2, May 28, 2021. I personally don't like the pL idea to attach the transom but others love it. Also need a layup schedule for this type of application. The first question is as follows; I am doing a large repair to the outer skin of the transom on a 22 foot fishing boat. ) Apr 2, 2009 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,624 May 30, 2014 · Anyhow, I was wondering what would be a typical layup schedule for a boat like this and i'll throw out my first best guess for doing it in polyester: -1708, mat side down- -1/2" balsa core- -bedding putty- -1708, mat side down- -sanded inner I am Replaceing a Transom on a 1990 Cig TG, converting it to Bravo from Trs. As mentioned, the cut line will be located to allow the outer edge of the bevel to end before the corner of the transom. 5” with glass in between the layers. Jan 10, 2025 · And only 3 layers on the hull. Jun 10, 2007 · I was curious what would be the most effective schedule for the transom layup? I still have the inner skin and looking to stiffen it up. Feb 12, 2022 · Transom core @Tom Marlowe what's the layup schedule on a 219FS? Should it separate this easy? Sent from my Pixel 2 using Tapatalk Oct 17, 2024 · Maybe ask here what folks recommend for a layup schedule. May 12, 2009 · So my question is does this sound like a workable layup schedule for a 15ft tri-hull using Epoxy resin: Transom and stringers: Glue transom to hull outer skin with Epoxy paste 4? tab of 18oz roving (2? on hull) 8? tab of 18oz roving (4? on hull) complete cover 18oz roving (6? on hull) Sole: Coat bottom with Epoxy (should I also use cloth?) Dec 15, 2016 · Hi, I’d like to build a transom-hung cassette-type rudder for my boat (Santana2023R), and I’m trying to figure out the layup schedule. Transom and stringer layup schedule Discussion in ' Fiberglass and Composite Boat Building ' started by Aransas Flats Rat, Dec 17, 2018. This does go Sep 5, 2017 · Layup schedule help Discussion in ' Fiberglass and Composite Boat Building ' started by Scuff, Sep 5, 2017. 4. The steep transom angle, the layup schedule and the shoebox assembly make for a strong, proven design. Here's a typical transom layup schedule: The layup for standard transoms is CSM,3/4 ply,CSM,3/4 ply, 1708,1708 and two extra layers of 1708 around the perimeter (8 inch tabbing). New transom is in 3/4" Coosa across the entire transom and a double layer in the middle there Do I need to reinforce the existing outer transom wall with 1708? If so how much? I am going to build an inner transom wall and pour the transom with 2 inches of Seacast where the bracket mounts, then pour 1 inch up to the cap. 5oz mat and a layer of 1708 double bias stichmat 3. Over Divinny cell. So long time lurker and first time poster. It will add much more thickness and strength than CSM. I can see some improvements to make in your hull mold layup. Then fill and fillet (filling an edge to make it round) with your PB (peanut butter or thickened resin), then tab those areas to reinforce those Feb 24, 2006 · I am getting ready to purchase the materials for the transom and wanted to get feedback on the lay-up. Even I have had this hull on the back burner for a (long) while, finally getting to it, it had a lot of chop strand layed up poorly on the inner transom skin & knees, which turned out to be the result of deleting the splash well by the original owner, so I have began to grind back the chop to find the original glass, what would be a good layup schedule for the inner skin & knees? I have plenty of Apr 2, 2009 · Transom & Stringer replacement Discussion in ' Fiberglass and Composite Boat Building ' started by blaze_125, Apr 2, 2009. I wanted to know what layup schedule is being used. Bond in a pc of 3/4'' core board. Alternating layers of biaxial (±45°) and triaxial fiberglass help to properly support the weight and vibration of an outboard motor. It will hold its overall shape better. I will go ahead a lay fresh glass along the hull edges and bottom during the inner skin lay up. Click to expand Thanks for the reply, Mike. - Im wondering what kind of schedule should i use for laying up repairs in two areas that i ground out heavily, they were cracks approx. Warranty is for anything transom related and all cost that occur due to transom failure. CM has graciously shared his transom layup schedule as well as hull layup in his core built boats. Do you core the actual transom like a normal transom would be or does it become a false transom and the bracket transom is all that is needed? Also what is the layup schedule on your bracket stringers? Apr 2, 2009 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,605 May 3, 2013 · Re: Transom thickness L, If you go with your indicated lay-up schedule, I would go with 1708 over the first layer of CSM. Any suggestions on transom lay up schedule? I am using 2 x 3/4" marine plywood layers with a quarter inch of glass on each side and in between the layers. Thickened epoxy fillet applied, cured, and ground 4" 1708 tape Any suggestions on transom lay up schedule? I am using 2 x 3/4" marine plywood layers with a quarter inch of glass on each side and in between the layers. Can anyone recommend a fiberglass layup schedule? Was thinking I would use a couple layers of twill (maybe 6 oz?) to conform to the strakes and sharp curves then reinforce the keel and chines with some chopped strand mat. Most Builders don't list this information as Mar 30, 2018 · When the inner transom components are all glassed in they will resemble the letter "H" only the horizontal reinforcement will extend the entire transom width. Jun 3, 2010 · Re: Advice on a layup schedule. The new core is 2 layers of ¾”, 24# Penske Board. When you lay up the second side, bevel the core at about a 45* angle to the glass and round over the edge. Jan 20, 2013 · Need some layup help for fiberglass boat. Dec 17, 2018 · Transom and stringer layup schedule Discussion in ' Fiberglass and Composite Boat Building ' started by Aransas Flats Rat, Dec 17, 2018. There is some flex if you climb on the outboard trimmed up and I'd like to stiffen it up. Due to damaged glass I have removed a large section back to the plywood core. Apr 2, 2009 · Transom and stringer layup schedule Aransas Flats Rat, Dec 17, 2018, in forum: Fiberglass and Composite Boat Building Replies: 78 Views: 25,510 Aransas Flats Rat Jan 3, 2019 Feb 11, 2015 · The final cross section of the transom is 1/2" of glass on either side of 1-1/2" KayCel for a finished thickness of 2-1/2". It's as solid as can be. Dec 17, 2018 · Transom and stringer layup schedule Discussion in ' Fiberglass and Composite Boat Building ' started by Aransas Flats Rat, Dec 17, 2018. Do some searching and you’ll be able to find his “blueprints”. If anybody can point me in the right direction I would appreciate it. For the transom, I would glue the wood in place. This came from advice from the scheaffer/boat doctor. dww ysrie bpbe uzoax gsssj iqz ccsca fbhiq wmj sqtf amfsnsy axm xhar agub ftxrjg