Search found 199 matches

by PAR
Sat Jun 26, 2010 11:12 am
Forum: Resins, Fiberglass and Paint
Topic: Best material for abrasion resistance
Replies: 37
Views: 3339

Re: Best material for abrasion resistance

S 2 'glass is a little stiffer and a little stronger then regular 'glass, but about the same in abrasion resistance, plus it costs the same as Xynole.
by PAR
Fri Jun 25, 2010 10:22 pm
Forum: Resins, Fiberglass and Paint
Topic: Best material for abrasion resistance
Replies: 37
Views: 3339

Re: Best material for abrasion resistance

Kevlar is a good choice if you have more money then you know what to do with, but more importantly if you have quite controlled laminating conditions. Without climate control and surface controls you're just kidding yourself. Abrasion resistance would be greatly improved with Xynole or Dynel fabrics...
by PAR
Fri Jun 25, 2010 10:43 am
Forum: Core Materials: Plywood, Foam core and Honeycomb
Topic: checking prevention
Replies: 7
Views: 1804

Re: checking prevention

Yes, checking under the sheathing after cure. I've seen it on both painted surfaces and brightly finished. I suspect Douglas fir could also check under 8 ounce if the veneer is thick enough, but in most small boats, using reasonable quality plywood, the veneers should be thin enough to lock down wit...
by PAR
Fri Jun 25, 2010 9:28 am
Forum: Core Materials: Plywood, Foam core and Honeycomb
Topic: checking prevention
Replies: 7
Views: 1804

Re: checking prevention

A light sheath on anything other then Douglas fir will prevent checking. I've seen checking under 6 oz. cloth with Douglas fir, so you should consider 8 oz. as the minimum, to insure surface veneer stabilization on this species.
by PAR
Thu Jun 24, 2010 7:50 pm
Forum: Cracker Larry's Corner: Boat Repair and Rebuild Support
Topic: Total rebuild. Natinal?
Replies: 28
Views: 2474

Re: Total rebuild. Natinal?

Who knows what's going on there Joel. I haven't seen one of these opened up in many years, but it appears all cobbled together, who knows what's original. I'm with Doc, rip it out and start over with a laser level for a perimeter cleat/flange and I suspect there was once longitudinal stringers in th...
by PAR
Wed Jun 23, 2010 7:25 pm
Forum: Power Boats
Topic: Gaps are Good!
Replies: 13
Views: 1201

Re: Gaps are Good!

A very rough rasp or a low angle block plane can be very helpful at beveling back an edge to offer a place for goo to live.
by PAR
Wed Jun 23, 2010 4:16 pm
Forum: Anything else and for sale. . .
Topic: Why you should follow the plans
Replies: 23
Views: 2388

Re: Why you should follow the plans

See this is the difference. Here there are doers and over there are a lot of what I call arm chair experts. By this I mean a high percentage of the contributors over there are retired, semi retired, maybe too drunk to continue, stuck in their easy chair kind of fellows. They probably once where quit...
by PAR
Wed Jun 23, 2010 11:41 am
Forum: Anything else and for sale. . .
Topic: Why you should follow the plans
Replies: 23
Views: 2388

Re: Why you should follow the plans

Gk 108, that is precisely the assumption and attitude that got the thread into trouble in the first place. A year long condemnation of the owner's, their decision making processes, ridiculous speculation, insults, innuendo, the list is endless, but the point is WoodenBoat corporate is ultimately res...
by PAR
Wed Jun 23, 2010 6:37 am
Forum: Power Boats
Topic: HMD 19 Epoxy and water line
Replies: 5
Views: 632

Re: HMD 19 Epoxy and water line

I always tell folks to wait until launch day to mark their LWL accurately. You never know where it's going to end up, though you can get close in the shop. On small craft the trim changes so dramatically, that an accurate LWL or boot stripe that it will be difficult to hide trim changes with various...
by PAR
Tue Jun 22, 2010 7:48 pm
Forum: Power Boats
Topic: HMD 19 Epoxy and water line
Replies: 5
Views: 632

Re: HMD 19 Epoxy and water line

You could be experiencing a few different issues, none are serious. When you roll epoxy, you but bubbles in it. You can tip off which will pop them or you can wave a heat gun over them, which will also pop them. You also may have been experiencing what we call "out gassing". Out gassing occurs when ...