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Epoxies have a wide acceptance in the marine industry, but they haven't caught on in the wood shop as well as they should. Having been associated with the marine industry myself and with the use of epoxies for many years, I have developed a good working relationship with epoxies, and I use them quite often in place of other adhesives, especially when high strength and moisture resistance are factors.

To properly use epoxy, one must first understand the basics. Epoxy is a two part adhesive consisting of a resin and a hardener, and is primarily divided into two classes: quick-set and slow-set. They are further divided within these categories by the mixing ratios, which are designed by the manufacturer. They can be anything from 1:1 to as much as 16:1, depending on curing time, viscosity, ultimate strength and intended use.

Quick-sets are usually 1:1 by volume, so that equal amounts are squeezed from hypodermic-like syringes and mixed to a uniform color and consistency. They usually achieve their strength in 10 minutes or less, and a full cure within 24 hours, but they rarely reach the high strength that the slow sets do, and quite often retain some flexibility and resilience.

Slow-sets allow more open or working time, and can take up to 24 hours to cure. The advantages are superior strength, water resistance and gap filling capability. They don't take as much clamping pressure as other adhesives, and I have had success with only contact pressure. As a matter of fact, too much clamping pressure can force the epoxy out of the joint resulting in a lean or starved joint.

The gap filling capability is no excuse for poor workmanship, but if a mistake is made, epoxy can be very forgiving. The viscosity can be altered very easily by the addition of fillers such as sawdust, wood flour, talc, or colloidal silica. I use a product called "cabocil", which I get from my epoxy manufacturer, and in fact many epoxies are pre-filled with cabocil to moderate the consistency. In an emergency repair, I have even used copper wool as reinforcement, along with the cabocil, allowing a boat owner to get to his home port before making the permanent repair.

Epoxy cures through an exothermic polymerization, or heat producing chemical reaction in which there is very little moisture loss, resulting in less than 0.05% shrinkage, the main reason that epoxy is such a great gap filler.

Probably the greatest advantage in using epoxy is the ability to join dissimilar materials. The adhesion factor is as great on metal as it is on wood, but some non-porous materials need to be roughed up to enhance the bond.

Each manufacturer has his own specifications for mixing and using epoxy, and the instructions need to be followed closely. Too much or too little hardener can result in a gooey mess that never will cure.

Storage instructions must be followed also. Some hardeners will harden from exposure to air, and water in either resin or hardener is a definite taboo. When using epoxy that is approaching the limits of it's shelf life, the resin and the hardener should be stirred thoroughly prior to mixing together. If crystals have formed in the hardener, you can sometimes restore it by immersing the container in warm water to heat the hardener enough to dissolve the crystals.

Care must be taken to avoid excessive heat and contamination of the product with water. Stir the hardener to restore the consistency.

At as much as $50.00 per gallon, epoxies can be expensive, and because of limited shelf life, don't buy larger quantities than can be used in the recommended time frame.

Most epoxies are formulated for use in moderate weather conditions, between 50 and 90 degrees Fahrenheit. Cooler temperatures slow the curing time and warmer temperatures will accelerate it. This can be used to advantage by refrigerating the mixture to prolong pot life, or by warming the mixture to speed up the cure.

Depending on the use, application can be by roller, spray gun, trowel, or putty knife. Some are thin enough to be injected into joints with a hypodermic syringe. Clean up can be done with soap and warm water if done soon enough, or with acetone, lacquer thinner, or denatured alcohol. If using a spray gun, spray plenty of solvent through the gun to assure the complete flushing of the equipment. For safety and environmental reasons, spray the solvent into a container for proper disposal.

I am a retired professional woodworker with over 50 years experience in virtually all phases of the construction industry. I would like to pass on a few of the tips and tricks that I have learned through the years. I have written a few e-books on diverse subjects related to woodworking and construction, and am adding more all the time. Visit my store on eBay to see my books: I am now offering a limited selection of epoxies in my eBay store at: http://tinyurl.com/3chxox

Many people are going for metal roofs, as new materials for roofing are available. It has been seen that the metal roofs are having more advantages than any other kind of roofs so these roofs are having more popularity. Metal roofing is more popular due to the make as well as the weather differences.

Metal roofing is becoming more and more popular in the houses as in comparison to the asphalt shingles or the other kinds of tiles and shingles these are more durable. The metal roofs can withstand tough weather that includes hurricane force winds, heavy snow, wind-driven rains, extreme heat and hail. Many people choose metal roofs as it can also withstand fire that can occur due to man-made fire or due to the heat of the sun.

To make it more durable metal roofs have various kinds of layer of paint and also other kinds of resistant stuff. Polymer as well as metallic coating is one such coating layer. In comparison to other metals it makes them extra corrosion resistant. While they are painted, they also use high-performance polymers. The color will start fading due to the airborne contamination after sometime but due to the polymer's usage you have to spray down the roof using a garden hose so that it looks new again.

Metal roofing adds value to each home; this is one more reason that people are moving towards it. Metal roofs are expected to continue for forty-fifty years and normally it has a warranty that is also expected to last such long. In addition to the value of the house it is also expected that metal roof does not need to be replaced in a lifetime.

In comparison to other kinds of roofing metal roofs are known to have extra varieties of colors and styles and so many people are using it. To enhance the accents on your home they may come in different shades as they are painted along with the polymer coatings. Metal roof compared to any other kinds of roofing have more styles and it also adds to the value of your house as well as to the uniqueness.

While installing drywall taping and roofing one can notice that this one is easier than putting on any other kind of stuff. Placing the roof on your home is also easier due to the style along with the tiles of the metal roofing.

Due to various reasons metal roofing is becoming so popular. It is not only that the metal roofing is extra weather resistant rather than other houses but is undoubtedly a low-maintenance kind of roofing that lasts longer and also adds color as well as style to your home, which otherwise would not have been available. Many people are changing their home tiles to metal due to such advantages of metal roofing.

Being specifically interested in drywall finishes and plastering drywall, Vince Paxton wrote a variety of long articles on this particular matter. Recording his experience in documents like http://www.insidewoodworking.com , the reviewer affirmed his know-how on topics like drywall taping tools

Rock climbing is an exhilarating sport and one that is growing in popularity. Today, people of all ages are taking up this fun but physically demanding activity. Many aspects of rock climbing appeal to those partaking in this sport, but one thing which stands out most is that this is an activity that can be done both indoors and out.

Man-made rock climbing walls are perfect for training and for when the weather conditions outside are less than desirable. Indoor rock climbing walls are a great way to learn the various rock climbing techniques while being under the careful watch of more experienced rock climbing professionals. Because theyre made to resemble the characteristics youd find in a natural rock environment, many rock climbers never even venture outdoors. But for those who do, the outdoors experience is truly unique and awe-inspiring.

Countless rock climbing opportunities await those who do venture outdoors. Not all rocks though are optimum for the rock climber. First in importance is whether the rock face can be traversed horizontally or vertically. Equally important is that the rocks chosen for rock climbing must be solid rocks and they must be stable. Also look for locations where the weather is predictable, and where trails already exist.

Although this is a relatively safe activity if undertaken using the proper rock climbing equipment, rock climbing can be a dangerous sport, especially for those who venture far off the ground and away from more densely populated areas. Its one thing to want to climb in an uncrowded area, but should an emergency situation develop, being close to others could mean the difference between getting timely help and not getting the help the injured party needs to survive.

Many people mistakenly believe that the majority of rock climbing injuries result from falling. This belief might simply result from the fact that rock climbers who fall get more attention from local authorities, rescue squads and even the media. However, most rock climbing injuries occur to the hands, tendons, elbows and shoulders and are caused by straining and overuse. Although these types of injuries are not preventable, their occurrence can be reduced by taking time to properly warm up and stretch out these body parts. Using the right rock climbing equipment for the journey ahead is also advisable.

Rock climbing shoes are a must and help ensure a proper grip on the sometimes slippery surfaces. Helmets, which unfortunately arent worn by many climbers, are a good way to prevent serious head injury. A rock climbing harness that is in excellent condition with no frayed or worn out parts, climbing ropes, webbing, karabiners and belay devices are other essential pieces of rock climbing gear.

Keep the above rock climbing basics in mind before venturing out on your next rock climbing adventure and youll hopefully keep rock climbing accidents to a minimum.

Online Rock Climbing Resource

Homeowners today are constantly faced with maintenance and repair projects on their home. With an estimated 125,000,000 housing units in the USA, one can only imagine the number of hours, material and labor force required to maintain and protect the quality of these homes.

An ever increasing number of homeowners are discovering the advantages of learning simple and not-so-simple repairs around the house and the cost saving benefits of, doing it yourself.

Tile grout repair has been placed in the homeowners category of do not attempt for far too long and for those homeowners with willingness to learn and repair items around the house, its really not rocket science!

Although a complete tile or stone installation is best performed by a professional in the trade, homeowners can take on the ensuing maintenance and small repairs necessary for the longevity of their tile and grout.

Some of the most common grout problems homeowners face is around the sinks, tubs and showers. Where grout abuts differing materials like porcelain, sheetrock, metal or wood, this scenario introduces a set of factors that can affect the strength and foundation of the grout at those particular points. Expansion and contraction of the differing materials can cause cracking and chipping of the grout. The settling and movement of the house and foundation through the years can also cause cracking and splintering of grout joints as well as the tile itself.

A thorough investigation of the tiled surfaces in your home should include all the edges or ends of the tile and grout, all corners (where grout is likely to crack), tile and grout around windows, ledges and fixtures, and where tile grout meets various other building materials.

Repairing these cracks and chips can save you money in the long run, especially in the wet areas where water can seep through the damaged grout and rot the wood framing or underlayment. Home inspectors always look around the tub and shower for these water problems because its such a common problem, and when selling your house can be a very expensive repair.

If you can clean your grout, you can repair your grout! Its as simple as that. With the proper instructions, tools and products available today, homeowners no longer have to wait for a repairman or spend big bucks on a tile-man. They can now, Do-It-Themselves!

Michael Garman develops tools for homeowners and the ceramic tile industry. To view information on tile and grout removal or repair, visit his companys' website at: http://www.groutgetter.com