Re: Stus-List 34+ / 37+ Layup schedule
That is awesome, I would sure like to have that information for my 37.; I have all of the spec sheets and drawings information from the Great Lakes museum for the 37, does anyone know of any other source? (the build file for my boat is no longer available). Richard 1s/v Bushmark4; 1985 C 37 CB; Ohio River, Mile 596; Richard N. Bush 2950 Breckenridge Lane, Suite Nine Louisville, Kentucky 40220-1462 502-584-7255 -Original Message- From: Ken Heaton via CnC-List To: cnc-list Cc: Ken Heaton ; Francois Rivard ; tom hoffmann Sent: Wed, May 30, 2018 4:55 am Subject: Re: Stus-List 34+ / 37+ Layup schedule And the Construction Drawings for the 37/40 Series, showing the layup schedule for 1990, and layup details, etc are online here: https://c-c-37-40.blogspot.com/p/blog-page.html Ken H. On 29 May 2018 at 16:39, Francois Rivard via CnC-List wrote: Hi Thomas, Below is what I know about the layup schedule on the 34 / 37 + boats. I got this off a forum somewhere (Not this one) a few years ago. Topsides (total thickness 1.19") 1. Gelcoat 2. 1.5 oz. Chop 3. 1.5 oz. Mat 4. C72K/100 Kevlar Fabmat 5. 1” Balsa Core 6. C72K/100 Kevlar Fabmat Bottom (total thickness 1.23") 1. Gelcoat 2. 1.5 oz. Chop 3. 1.5 oz. Mat 4. C77K/200 Kevlar Fabmat 5. 1” Balsa Core 6. C72K/100 Kevlar Fabmat Tuck area at turn of bilge to keel sump two (2) additional layers of C77K/200 Kevlar Fabmat are added to the interior layer of the bottom schedule for a total thickness of 1.39" Keel sump has Balsa replaced by two (2) layers of Compositex. DuPont Aramat C72K/200 seems to have been an E-glass/Kevlar hybrid weave. The following is all I could find out about the stuff on the web: Composition of the glass/Kevlar hybrid, DuPont's Aramat 72K/200: ComponentG/SQ.MOZ/SQ.YD Wt. % in Base Fabric Wt. % inTotal Fabric Glass Fiber 245.6 7.2 63 41.1 Kevlar 49144.0 4.2 37 24.0 Mat Backing200.0 5.9 -- 33.5 Stitching Yarn 8.0 0.2 -- 1.4 Total 597.6 17.5 Hydrex is a trade name for a product line from Reichhold Chemicals. The original product was a VE/DCPD blend resin that offered the blister resistance of VE resin, but with the tensile elongation or 2.4 which is comparable to a good GP. The added DCPD allowed the resin to be promoted at the manufacturer rather than the shop floor. It was a very good resin, but not one which would have been ideal for an aramid laminate. Hydrex 100 is a full VE resin with tensile elongation of 3.4%. Many VE resins have an unstable gel time and need to be promoted at the shop to insure that it does not drift out of range. Reichhold improved the stability of the resin so that they could still promote at the manufacturer and get stable gel times and cure rates. They now offer lower styrene versions as well. There is some description of the layup on the 34+ here as well: http://www.cncphotoalbum.com/reviews/review34-36.htm I hope this helps. Jean-Francois Rivard 1990 34+ "Take Five" Lake Lanier, GA ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
Re: Stus-List 34+ / 37+ Layup schedule
And the Construction Drawings for the 37/40 Series, showing the layup schedule for 1990, and layup details, etc are online here: https://c-c-37-40.blogspot.com/p/blog-page.html Ken H. On 29 May 2018 at 16:39, Francois Rivard via CnC-List wrote: > Hi Thomas, > > Below is what I know about the layup schedule on the 34 / 37 + boats. I > got this off a forum somewhere (Not this one) a few years ago. > > Topsides (total thickness 1.19") > 1. Gelcoat > 2. 1.5 oz. Chop > 3. 1.5 oz. Mat > 4. C72K/100 Kevlar Fabmat > 5. 1” Balsa Core > 6. C72K/100 Kevlar Fabmat > > Bottom (total thickness 1.23") > 1. Gelcoat > 2. 1.5 oz. Chop > 3. 1.5 oz. Mat > 4. C77K/200 Kevlar Fabmat > 5. 1” Balsa Core > 6. C72K/100 Kevlar Fabmat > > Tuck area at turn of bilge to keel sump two (2) additional layers of > C77K/200 Kevlar Fabmat are added to the interior layer of the bottom > schedule for a total thickness of 1.39" Keel sump has Balsa replaced by > two (2) layers of Compositex. > > DuPont Aramat C72K/200 seems to have been an E-glass/Kevlar hybrid weave. > The following is all I could find out about the stuff on the web: > > Composition of the glass/Kevlar hybrid, DuPont's Aramat 72K/200: > > ComponentG/SQ.MOZ/SQ.YD Wt. % in Base Fabric Wt. % > inTotal Fabric > Glass Fiber 245.6 7.2 63 > 41.1 > Kevlar 49144.0 4.2 37 > 24.0 > Mat Backing200.0 5.9 -- > 33.5 > Stitching Yarn 8.0 0.2 -- > 1.4 > Total 597.6 17.5 > > > Hydrex is a trade name for a product line from Reichhold Chemicals. The > original product was a VE/DCPD blend resin that offered the blister > resistance of VE resin, but with the tensile elongation or 2.4 which is > comparable to a good GP. The added DCPD allowed the resin to be promoted at > the manufacturer rather than the shop floor. It was a very good resin, but > not one which would have been ideal for an aramid laminate. > > Hydrex 100 is a full VE resin with tensile elongation of 3.4%. Many VE > resins have an unstable gel time and need to be promoted at the shop to > insure that it does not drift out of range. Reichhold improved the > stability of the resin so that they could still promote at the manufacturer > and get stable gel times and cure rates. They now offer lower styrene > versions as well. > > There is some description of the layup on the 34+ here as well: > http://www.cncphotoalbum.com/reviews/review34-36.htm > > I hope this helps. > > Jean-Francois Rivard > 1990 34+ "Take Five" > Lake Lanier, GA > > > ___ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > > ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
Stus-List 34+ / 37+ Layup schedule
Hi Thomas, Below is what I know about the layup schedule on the 34 / 37 + boats. I got this off a forum somewhere (Not this one) a few years ago. Topsides (total thickness 1.19") 1. Gelcoat 2. 1.5 oz. Chop 3. 1.5 oz. Mat 4. C72K/100 Kevlar Fabmat 5. 1” Balsa Core 6. C72K/100 Kevlar Fabmat Bottom (total thickness 1.23") 1. Gelcoat 2. 1.5 oz. Chop 3. 1.5 oz. Mat 4. C77K/200 Kevlar Fabmat 5. 1” Balsa Core 6. C72K/100 Kevlar Fabmat Tuck area at turn of bilge to keel sump two (2) additional layers of C77K/200 Kevlar Fabmat are added to the interior layer of the bottom schedule for a total thickness of 1.39" Keel sump has Balsa replaced by two (2) layers of Compositex. DuPont Aramat C72K/200 seems to have been an E-glass/Kevlar hybrid weave. The following is all I could find out about the stuff on the web: Composition of the glass/Kevlar hybrid, DuPont's Aramat 72K/200: ComponentG/SQ.MOZ/SQ.YD Wt. % in Base Fabric Wt. % inTotal Fabric Glass Fiber 245.6 7.2 63 41.1 Kevlar 49144.0 4.2 37 24.0 Mat Backing200.0 5.9 -- 33.5 Stitching Yarn 8.0 0.2 -- 1.4 Total 597.6 17.5 Hydrex is a trade name for a product line from Reichhold Chemicals. The original product was a VE/DCPD blend resin that offered the blister resistance of VE resin, but with the tensile elongation or 2.4 which is comparable to a good GP. The added DCPD allowed the resin to be promoted at the manufacturer rather than the shop floor. It was a very good resin, but not one which would have been ideal for an aramid laminate. Hydrex 100 is a full VE resin with tensile elongation of 3.4%. Many VE resins have an unstable gel time and need to be promoted at the shop to insure that it does not drift out of range. Reichhold improved the stability of the resin so that they could still promote at the manufacturer and get stable gel times and cure rates. They now offer lower styrene versions as well. There is some description of the layup on the 34+ here as well: http://www.cncphotoalbum.com/reviews/review34-36.htm I hope this helps. Jean-Francois Rivard 1990 34+ "Take Five" Lake Lanier, GA ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
