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Archive for the ‘Recreation and sports – Boating’ Category

How to Build a Wooden Boat?

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Building a wooden boat can be a great way to exercise your skill and inventiveness. If this is the first boat you are trying to make then you will likely do well by following an uncomplicated layout that doesn’t necessitate a complex range of details or an excessively ambitious budget. However, regardless of the design chosen, your boat should still be usable. Therefore functionality should be significant in the entire process. When you have acquired all the necessary tools and materials and have decided on the design you will employ, you can begin this very exciting and satisfying project.

How To Build A Wooden Boat

Required Tools

Power drill
Set square
Steel ruler
Tape measure
Power jigsaw
Power plane
Random orbit sander
Handsaw
Hand plane
Hand sanding block

Required Materials

Marine Plywood or Regular Plywood
Epoxy
Fibreglass
Paint and/or other Waterproofing treatment

Instructions

The process used here is deemed the stitch and glue method. It is used to create three dimensional objects out of two common materials: plywood and epoxy resin. It is not hard to build a boat using this method if you follow the steps precisely.

1.To begin cut your sections of plywood in the shape detailed by your design. You will have to use your power tools, hand saw, measuring tape, set square and ruler at this juncture to cut the pieces correctly. The precision of the plywood pieces will give your boat a better look and more stability when it is ready to be sailed.

2.On one of your cut sections of plywood, drill several small holes and space them about 10cm apart. You will then repeat this process with another piece of your plywood these holes will correlate to the first set you have put in your original section of plywood.

3.These two pieces will be stitched together using copper or plastic cable ties. Be sure to you use an adequate length for each hole, to fasten it properly.

4.When the pieces have been successfully joined you will then be ready to apply your thickened epoxy. The epoxy will be applied at the joints of the pieces, thereby securing the pieces completely. If you want to improve the bonding capacity of the epoxy you can utilize a light layer of epoxy that has not been thickened on the sections of plywood initially and then put on the thickened epoxy after a few minutes have passed. This will give the glued sections more stability than the wood itself.

5.Allow the epoxy to cure, this means allowing it to dry and set. Once this has been achieved remove the pieces of wire from the plywood and then utilize fibreglass, tape and more epoxy to fill out the holes and prevent any leaks.

6.Once the complete structure has been constructed you will still have to make your boat water ready. Even if the plywood is already treated it must be painted and coated with a durable waterproofing finish. This finish will act as a sealant and prevent the wood from becoming waterlogged. Before applying you finish you will need to sand down your boat using your sand paper and/or other power tools to soften the body and edges. To achieve this you can use a thin coat of epoxy first to seal the wood and then out on a coat of regular outdoor paint to guard against the damaging effects of the sun.

7.Your boat is now ready to be sailed.

Tips and Warnings

The overall time to finish this project will vary. You will have to take a break at some point to enable the epoxy to cure after each application this will usually require about 5-7 days. However, doing it properly is the only way to make certain that your boat will perform effectively.

Make sure you are taking the right safety precautions including wearing a protective mask, safety glasses, close weave working clothes and utilizing disposable plastic gloves. During the sanding and drilling process there will be a great deal of dust flying around therefore a particle mask will be essential. In addition the gloves will ensure that your hands will not come in direct contact with the epoxy, which while not a lethal material is best not touched with bare fingers. Undoubtedly the glasses will prevent any unexpected injury to the eyes.

Look up different boat designs and opt for a plan based on your thorough research. The less complicated the plan the better.

Written by admin

June 21st, 2010 at 3:32 am

How to Repair a Fiberglass Hull on a Boat?

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To repair a fiberglass hull on boats may appear to be an easy job because it basicallyincludes patching any weakened areas withgelcoat. However, the preparation that needs to be done is the most vitalstep in the process and will have the greatest impact on the soundness of the work you will do. For this reason you will have to be precise when repairing the hull on your boat. Basically the process involves a bit of sanding, applying coats of polyester resin, waxing and buffing to restore the original gloss. It is important that you do not simply fill any cracks with additional material as this will be prone to break off. This is because gelcoat is extremely brittle once dried and will crack soon after being fixed to the area.

How To Repair A Fiberglass Hull On Boats

Required Materials

Polyester Resin

Pigments of various colours

Hardener

Tape

Rubing Compound

Required Tools

Sand Paper

Gloves

Rotary Tool

Screw Driver

Popsicle Stick/Plastic Scraper

Instructions

To start you will need to make your surface rough to add your filler comprised of gelcoat, pigment and a hardener. To accomplish this you will have to utilize your sandpaper, rotary tool and screw driver. Basically you will be enabling the gelcoat to have a better grip on the damaged area. Forgoing this step as stated previously will cause the gelcoat to crack once it has been laid. Basically you will want to take your sandpaper and create a rougher texture to your area. Once you have done this you can utilize your screw driver or rotary tool to dig a valley into your work area, thusproducing a satisfactory number of rough edges. Once the valley has been formed you can then smooth out the surrounding areas and use some of tape to distinguish the area that will be patched. To ensure you don’t ruin the areas that are undamaged closest to the work area, use extra tape to protect those areas.

You are now ready to prepare your filling. The hardest part of this process will be to get your gelcoat to look like the same colour foundon the hull as it is currently. The best way to do this will be to mix your colour before you think of mixing your polyester resin and hardener to create your gelcoat. If you combine all of the aforementioned materials together at one time you will have only 20 minutes to determine the exact colour by trial and error. Therefore for this part of the process mix only the pigments and polyester resin together and test on a small area of material that is similar to hull and wait for it to dry a bit. It is likely that the colour will look slightly different once the colour is dried. This part of the process will take a bit of artistry and some patience will be necessitated.

When you have got the colour to match the hull you may then put in your hardener. However, before putting in the hardener pay close attention to the instructions and ensure that you add the right amount to avoid a poor mixture that will produce an alteration in the colour you’ve mixed and an unsatisfactory finish. You should not combine the hardener to the complete amount that you have made but instead to small portions as you proceed. This will ensure you will not have to remix the colour which as you should already know takes a considerable amount of time. It will also guarantee that the sections being patched will be uniformly coloured.

To fill the area apply the gel coat with a popsicle stick or any other kind of flat applicator. Attempt to do this as smoothly as possible. It doesn’t need to be extremely smooth because it will be leveled with sandpaper. When you have done filling the space it should be a bit higher than your surrounding section, this allowance should be left to enable easier sanding of the area. You may have to put on a couple more layers while sanding in between to get it to be slightly elevated. Let this dry overnight.

After it has dried you may then sand down the section and remove the masking tape from the undamaged areas to get the area as close to this as you are able to. You can then put on another thin layer orf resin and let dry overnight.

You can then buff your area with the rubbing compound until it appears just as good as the unspoilt areas.

You may add a bit after you are finished to give additional protection from UV rays.

Tips

You may wish to wear your gloves to prevent the gelcoat from getting on your hand.

Try to work cautiously so that you do not end up damaging any areas that are still in proper condition.

Written by admin

June 21st, 2010 at 1:51 am

How to Repair Fiberglass Boat Floors?

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If you discover a hole in the flooring of your boat nothing can be more bothersome. If you own a wooden boat, repairs can rapidly get costly. If you are lucky enough to own a fiberglass boat, you will be grateful to know that it will be reasonably easy to repair that hole in the floor on your own at a negligible cost. To conduct the fixes yourself, you will need the following materials that are obtainable from any local boating supply store:

How To Repair Fiberglass Boat Floors

Required tools and Materials:

Sandpaper or disk sander

Marker

Knife

Brush

Wax paper

Fiberglass repair kit

Formica or Plexiglas

Gel-coat

Acetone

Instructions:

Step one: determine the extent of the damage.

Holes in your floor will usually extend past what is visible. Closely analyze the hole and the surrounding area to check the extent of the damage and get rid of loose material with sandpaper.

Step two:

using the acetone, get rid of any wax that may be present on the floor.

Step three:

using a marker, draw an oval round the broken area and cut it out using a knife or small hand saw then draw another oval that is at least a half inch away from all edges of the cut out hole.

Step four:

Sand the area using the sandpaper or disk sander up the point of this new oval until it aspects uniformly dull and clean once more with acetone to get rid of the extra dust. If dust, dirt, or other impurities remain, they could prevent the fix from working.

Step five:

Put On a thick coat of paste wax ensuring that you don’t get any on the sides of the hole. This will prevent runs from the gel coat from binding

Step six:

Mix gel-coat as described by the product’s instructions, and apply to the hole/crack with a putty knife. If the damaged area is shallow, you may be able to apply the gel-coat with a brush.

Step seven:

Cover the gel-coat with wax paper.

Step eight:

Give the gel coat time to harden. After the gel-coat has hardened, remove the wax paper and softly sand it until it is smooth. Curing time for the gel-coat will depend upon the heaviness of the application. This can take up to two hours but there is nothing wrong with letting it harden overnight if you have the time. Check the manufacturer’s directions for this information.

Step nine:

Apply a coat of paste wax which will assist the gel-coat to set completely. Using too much might however,

cause the application to cook resulting in in a weak repair.

Step ten:

Use acetone to clean the instruments you used to do the repair.

Tips & Warnings

Work slowly and follow the directions that come with your repair kit step by step.

Work in a well-ventilated area to shield yourself from the fumes of the acetone and the gel-coat.

When sanding, use a dust mask and protective goggles to stop breathing in of dust and to protect your eyes.

Never try to keep broken fiberglass; always cut it out and replace it.

Find more information here on how to repair fiberglass boat floors.

Written by admin

June 7th, 2010 at 2:58 am