LumberJocks

Woodworking blog entries tagged with 'raka epoxy'

  • Advertise with us
View DustyMark's profile

Building a KARA Hummer Layout Duck Boat #7: Sealing the Hull Interior

05-20-2015 01:28 AM by DustyMark | 4 comments »

Objective This boat is going to get wet and stay wet for days at a time. I plan to seal the interior with epoxy to give it at least some protection from the elements. My main concern was with the plywood. That is sealed well with the fiberglass cloth. The keel, gunnels, and ribs will be sealed by caulking the seams where they meet the plywood with thickened epoxy and coating the rest with unthickened epoxy. Caulking I imagine a builder could use silicone caulk to seal the joints,...

Read this entry »


View DustyMark's profile

Building a KARA Hummer Layout Duck Boat #6: Applying the Plywood Hull Panels

05-19-2015 08:37 PM by DustyMark | 4 comments »

Fiberglass Experiment I applied a layer of fiberglass cloth to the plywood hull panels before work, betting they would be “green” cured in the afternoon upon my return. Using Raka 127 Resin and Raka 350 hardener at 72 degrees and 48% humidity the fiberglass was set perfectly in about 8 hours. It was bonded, yet flexible enough to not restrict the plywood from curving around the hull ribs. The epoxy is wet into the fiberglass cloth with a foam roller. I never pay...

Read this entry »


View DustyMark's profile

Building a KARA Hummer Layout Duck Boat #5: Fitting the Plywood Hull Panels

05-18-2015 03:25 AM by DustyMark | 0 comments »

Overview The frame is complete and it’s time to apply the 1/4” Marine Douglas Fir plywood hull panels. The plan accounts for nailing these panels in place without glue and sealing them with epoxy later. My plan is to apply 2.3 ounce fiberglass cloth to the inside surface with a coat of epoxy before applying the panels. The potential advantage is a very durable/waterproof inside hull surface. The disadvantage is that I must fit the panels prior to final application and I h...

Read this entry »


View DustyMark's profile

Building a KARA Hummer Layout Duck Boat #2: Assembling the Upper Frame

05-12-2015 04:56 AM by DustyMark | 0 comments »

Strategy I let the epoxy cure on the lower frame for about 12 hours before proceeding with the upper frame. I dry assembled the parts with screws before gluing to ensure everything fit. I continue to use epoxy, thickened with colloidal silica to a mayonnaise consistency, to glue each joint in the boat. I never figured out how the designer fastened the plywood to the gunnels. In the boats I’ve built in the past, the gunnels are planed to an angle that gives the deck or hull ply...

Read this entry »



DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com