Web Extra: More Information on Polyurethane GluePolyurethane glues were developed in Europe and made their way to the United States less than a decade ago. They have a reputation for being stronger than yellow glue. They're also waterproof, but when filling gaps, experts suggest using an epoxy instead. Polyurethane glue is stainable and will bond materials together nicely. However, it is expense and can be quite messy. Plan on it having a shelf life of about a year after it's been opened.
Web Extra: More Information on Concrete Saws
Concrete cutting saws are designed for heavy loads. Their compact design makes operating in confined spaces relatively easy. However, when using this specialized tool, there are several very important safety issues you need to be aware of:
- Read manufacturers instructions before using and follow all recommended safety precautions.
- Hold the saw firmly in two hands, maintaining good balance and footing at all times.
- Never cut while standing on a ladder.
- Know the materials your cutting, and use the proper blades. Do not cut with a blade that is not suitable to the material.
- Do not overreach when cutting.
- Do not cut above shoulder height.
- When cutting, be alert to reactive forces exerted by the saw.
- Recognize the shifting of the article you are cutting or anything that could cause the cut to close and pinch the wheel.
- Release the pressure on the saw as you reach the end of the cut. Too much pressure may cause the operator to lose control of the saw when the blade completes the cut.
- Use caution when re-entering a cut and do not turn the wheel at an angle or push the wheel into the cut as this may result in pinching of the wheel.
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