How to make a fiberglass boat look new again furniture,wooden boats restoration and maintenance manual 560000,design a jon boat ideas,boat frame drawings 3d - Plans On 2016

Published 25.03.2014 | Author : admin | Category : Wooden Boat Building Kits

Repairing the HullAfter thirty years, a boat needs a little attention.The hull may have noticeable hairline cracks, spider webs, blisters, dings, and tiny holes that have developed over the years. We sanded the bottom of our trawler, a 34 foot Marine Trader, down to the fiberglass and repaired blisters and pin holes to prep for an epoxy barrier coat.
We also made repairs to the hull (spiderwebs, pin holes, dings, hairline cracks, etc.) of the boat to prepare the surface for fresh paint.
Two Part Epoxy Barrier CoatAfter sanding the hull down to the fiberglass, we made repairs to all the dings, spiderwebs, and tiny holes with a putty that hardens. When the repairs to the fiberglass were finished, we applied a two part epoxy that hardens to provide an effective barrier coat, a strong exterior surface over the fiberglass that will keep water from getting into the fiberglass.
We applied one coat of the two part epoxy above the waterline and four coats to the bottom using alternating colors (white, gray, white, gray), so that we would not miss any spots when painting each coat. Note: The two part epoxy barrier coat has to be put on quickly because once the two parts are mixed together, the hardening begins. Hint: By alternated colors (grey, white, grey, white), it is easy to avoid missing any areas. Preparing the Hull for PaintAlthough we applied four coats of the two part epoxy barrier coat to the bottom, we applied the first coat over the entire hull, including over the waterline. After the epoxy hardened above the waterline, we noticed that it dried as a rough surface, so we had to sand the entire hull above the waterline to prepare for the primer and paint. Important: Never paint over the HIN (hull identification number) that is engraved into the transom of your boat!
The first coat of epoxy (grey) has been applied to the entire hull (above and below the waterline). Do-it-yourself SANDING: Using an orbital sander, sand in a circular motion or up and down to avoid making indentations by keeping the sander in one place for too long.


After sanding the hull (above the waterline), we could see some tiny pinholes that we missed. Applying the Bottom Coat (ablative anti-fouling paint)After applying four coats of barrier coat to the bottom, we applied the bottom paint that will prevent barnacles from attaching when the boat is in the water. The ablative anti-fouling paint prevents barnacles from building up on the bottom of the boat while it is in the water.
Do-It-Yourself: BOTTOM PAINTPour into a 5 gallon bucket and mix well by hand or with a drill mixing attachment.
It is important to repairs these problems in order to prevent water from migrating into the fiberglass and causing damage that will grow over time. It is recommended that at least three coats are applied in order to build up the thickness (for strength). Apply with paint rollers quickly as the substance begins hardening once the two parts are mixed together. We used the grey color for the first coat so that we could fill in any tiny holes, nicks, or dings that we had missed repairing. The more perfect the sanding job, the better the final surface of the painted hull will be. The spotty (white and grey areas) are where we have begun sanding the hull above the waterline smooth in preparation for painting.
Sand up and down to create a smooth finish that will be unnoticeable on the hull after paint is applied. Luke is still sanding the hull above the waterline smooth to prepare the surface for paint. This is important because when the boat is pulled out of the water (dry docked or for repairs), if there is no buildup of barnacles, the surface is ready for another coat of bottom paint.


A boatyard may apply only one coat which would mean that you would have to pull the boat out of the water sooner. Since the fiberglass is white, the tiny holes would show up white after we applied the grey epoxy. If there are barnacles, it is very time consuming to scrape them off and sand the bottom before applying a new coat of bottom paint. Each year a layer of the paint wears away, and it is recommended to put another layer on each year.
Wear protective suit (you can buy a breathable white suit for this purpose) when painting toxic substances. Many people dry-dock their boats for the winter, so one coat is usually all they would need. If the first bucket is completely dry when you are ready to mix up the third batch, you can use that bucket again.
As the hours pass by, and your arms ache, it helps to remind yourself that you are saving the cost of labor (about $90 per hour) by doing it yourself! With two coats, one coat will remain after a year, and with no barnacle buildup, your boat will be ready for another coat. We wanted to apply at least three coats because we were starting out with no bottom paint at all and we want to avoid dry-docking the boat for as long as possible as we plan to live aboard the boat.
We applied four coats of bottom paint so that we do not have to pull the boat out of the water for awhile once we drop it back in.



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