One sixteenth of an inch
A ladder should be safe if it is properly constructed and maintained. Both single and extension ladders should be equipped with nonskid safety feet and should be placed on a firm, level surface.
0.18millmeters
You should scratch the surface or use a piece of sand paper on it to break the surface coating.
The most important step that you can take would be apply weather proof coating. To apply the coating, you should start out by drying the surface, and then layer on the coating.
Essilor airwear references their polycarbonate lens material. "antiglare" is a coating that can ( and should ) be applied to the lens
For tar and chip 2 weeks, for blacktop 1 year.
Usually steel or Aluminum but special paint and coating should be applied to prevent rusting from the water.
Harling is a wet lime coating applied to a wall as a finish. Not something you should try unless you are a professional. See link.
To dye leather, either a water-based or alcohol-based dye should be chosen. The leather surface should be clean from dirt or coating present. The leather should be dampen with water and then the dye should be applied evenly with a clean cloth and allowed to dry. Once dry, the leather should be buffed to remove any excess dye.
After you spray something with a water based coating you should spray over it with polyurethane. This will make the bubbles not come up and the surface you have just sprayed stay smooth.
Preparing and cleaning a surface prior to painting will allow the paint to remain on the surface for a longer period of time without chipping or peeling.
Yes. However, if you have surface rust, it should be removed before the undercoating is applied.