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Author Topic: 1973 196 rebuild question  (Read 21798 times)

April 06, 2025, 02:59:23 PM
Reply #630

Duffy1470

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Re: 1973 196 rebuild question
« Reply #630 on: April 06, 2025, 02:59:23 PM »
Here is a picture of what I am talking about. See the exposed comb. It is like that all the way around the outside edge. I figure as long as it is adequately supported from underneath with a rail or hard points and tabbed from the top, it should be fine.


April 07, 2025, 01:53:46 PM
Reply #631

Duffy1470

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Re: 1973 196 rebuild question
« Reply #631 on: April 07, 2025, 01:53:46 PM »
U, not sure I answered your question before so I'm going to add some comments. Here is the whole front deck process.
Day1:
-Leveled two 4x8 pieces of memine on cement floor
-Taped 2x2 pieces of wood down for gutters
-glassed gutters down with lots of matte and a layer of 1708
-let it all dry

Day2
-layer of matte over the whole thing including previous days work (lighty sanded and acetone whole thing)
-layer 1708 up to gutter but not over it
-layer of matte
-core and weight on core

Day3
-thickened resin between edge of core and gutter
-matte over all that
-1708 over all that
-1708 over gutter up to core

April 07, 2025, 02:49:25 PM
Reply #632

Ulysses485

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Re: 1973 196 rebuild question
« Reply #632 on: April 07, 2025, 02:49:25 PM »
Thank you for the detailed explanation Duffy! How did you handle the scrim backing on the honeycomb panels? Did you "hot coat" them before you set them into the wet mat layer?

April 07, 2025, 07:59:31 PM
Reply #633

Duffy1470

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Re: 1973 196 rebuild question
« Reply #633 on: April 07, 2025, 07:59:31 PM »
Yes, U. Gave the honeycomb a healthy coat before waiting them down.

April 08, 2025, 02:46:22 PM
Reply #634

Ulysses485

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Re: 1973 196 rebuild question
« Reply #634 on: April 08, 2025, 02:46:22 PM »
Thanks for the information. Regarding finishing the edge of the honeycomb, are you able to add a 45 on the edge of the panel so the bulkhead can be joined together AND filled with thickened resin? Check out my 240 build post #21 where I did this to make a bulkhead and the fuel tank subfloor.

April 09, 2025, 05:38:09 PM
Reply #635

Duffy1470

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Re: 1973 196 rebuild question
« Reply #635 on: April 09, 2025, 05:38:09 PM »
Hatch .... mat, 1708, strip 1708 down each side , mat, core battery




April 09, 2025, 05:39:44 PM
Reply #636

Duffy1470

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Re: 1973 196 rebuild question
« Reply #636 on: April 09, 2025, 05:39:44 PM »
As U says, liberally hot coated core before laying down wet on wet. Added various pieces in corners and other random spots. I had resin left over, things got glassed.

April 09, 2025, 09:40:37 PM
Reply #637

Duffy1470

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Re: 1973 196 rebuild question
« Reply #637 on: April 09, 2025, 09:40:37 PM »
Came out pretty good. Will finish glassing tomorrow


Today at 05:21:01 AM
Reply #638

RickK

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Re: 1973 196 rebuild question
« Reply #638 on: Today at 05:21:01 AM »
 :thumleft: Looks like you have the hang of this. Maybe should have cut the edges of the core at a 45 all around before lamming it in, so you could finish lamming all together?
Rick
1971 "170" with 115 Johnson (It's usable but not 100% finished)

1992 230 Explorer with 250 Yamaha

Today at 06:33:33 AM
Reply #639

Duffy1470

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Re: 1973 196 rebuild question
« Reply #639 on: Today at 06:33:33 AM »
I thought about that but decided to use thickened resin instead. For whatever reason I seem to end up doing cored laminations in two stages. What you described would be better.

Today at 10:54:56 AM
Reply #640

Ulysses485

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Re: 1973 196 rebuild question
« Reply #640 on: Today at 10:54:56 AM »
Duffy, thanks for sharing. Looks like the honeycomb panels work well for coring small part as well. Good to know! Something I have in mind for when I build my deck is to use quarter round glued into the ends and capped with glass. Unfortunately, I havent found a PVC quarter round in 1''.

 


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