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10 April 2017, 19:18
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#1
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Member
Country: UK - England
Length: 3m +
Join Date: Dec 2007
Posts: 32
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SR4 Hull construction
Hi Guys,
I have an SR4 which has at some point in its past caught the trailer taking a gouge out of the hull. Are the hulls cored?
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10 April 2017, 21:14
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#2
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Member
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
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Quote:
Originally Posted by Deutcha
Hi Guys,
I have an SR4 which has at some point in its past caught the trailer taking a gouge out of the hull. Are the hulls cored?
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The deck and transom are cored with marine plywood.
The hull itself is not cored (solid grp).
Strakes / chines are cored with polyester putty.
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Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
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13 May 2017, 19:14
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#3
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Member
Country: UK - England
Length: 3m +
Join Date: Dec 2007
Posts: 32
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Thanks for the reply. Could you define solid GRP?
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13 May 2017, 19:15
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#4
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Member
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
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Quote:
Originally Posted by puttputt
Thanks for the reply. Could you define solid GRP?
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Glass reinforced polyester.
Polyester resin and fiberglass.
__________________
Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
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13 May 2017, 19:37
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#5
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Member
Country: UK - England
Length: 3m +
Join Date: Dec 2007
Posts: 32
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Sorry, I meant layup.
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13 May 2017, 20:20
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#6
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Member
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
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Quote:
Originally Posted by puttputt
Sorry, I meant layup.
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Probably about 10mm overall.
2 layers of 1708 with a lot of chop in the middle maybe.
__________________
Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
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14 May 2017, 08:19
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#7
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RIBnet admin team
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,922
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Quote:
Originally Posted by puttputt
Hi Guys,
I have an SR4 which has at some point in its past caught the trailer taking a gouge out of the hull. Are the hulls cored?
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Have you found what looks like foam in there?
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"I'm going to hang up this phone, and then I'm going to show these people what you don't want them to see. I'm going to show them a world without you.".
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14 May 2017, 10:36
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#8
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Member
Country: UK - England
Length: 3m +
Join Date: Dec 2007
Posts: 32
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Hi Will,
thanks for the reply.
Mine is a 1988 boat with the moulded transom knees (no metal bars for transom support). I can't see any foam in the laminate, although there are lots of holes appearing as it is ground back ready for replacement material.
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14 May 2017, 11:06
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#9
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Member
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: S/R5.4/regal3760
Length: 10m +
Engine: Suzukidf70 2x6lp 315
Join Date: Jul 2009
Posts: 4,043
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Quote:
Originally Posted by puttputt
Hi Will,
thanks for the reply.
Mine is a 1988 boat with the moulded transom knees (no metal bars for transom support). I can't see any foam in the laminate, although there are lots of holes appearing as it is ground back ready for replacement material.
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When we were doing my sons sr4 the only foam we found was in the kelson which had a foam core
We were surprised at how thin the boat was which I guess is why your finding holes where your grinding because the glass isn't as thick as your expecting and it's easy to grind through
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14 May 2017, 14:51
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#10
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Member
Country: UK - England
Length: 3m +
Join Date: Dec 2007
Posts: 32
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Quote:
Originally Posted by office888
Probably about 10mm overall.
2 layers of 1708 with a lot of chop in the middle maybe.
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Is that loose chopped strands or CSM? I have some 450 CSM in stock does the biaxial cloth have to be the same weight?
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14 May 2017, 23:36
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#11
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Member
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
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Quote:
Originally Posted by puttputt
Is that loose chopped strands or CSM? I have some 450 CSM in stock does the biaxial cloth have to be the same weight?
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What area are you trying to fix?
__________________
Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
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15 May 2017, 12:36
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#12
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Member
Country: UK - England
Length: 3m +
Join Date: Dec 2007
Posts: 32
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Between the pad and spray rail.
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