search Found 40 Results for it so hard.

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1. Floor, Concrete
Compact mortar thoroughly to eliminate voids but don't work it so hard that water comes to the surface. Let it set until just before it is too hard to trowel.
http://www.fun-home-projects.com/household_repairs/​f/​floor_concrete.html

2. Ceramics
Crude pottery was shaped by prehistoric man, who used the sun's rays to dry its softness into a hard form.
http://www.fun-home-projects.com/collecting/​ceramics.html

3. Silver
It requires considerable study by the uninitiated, for the average person can't distinguish between sterling silver and German silver.
http://www.fun-home-projects.com/collecting/​silver.html

4. Leather Goods
There are so many things you can do with leather and so many ways to treat it that you will be working with it for a long time before you have mastered every aspect of leathercraft.
http://www.fun-home-projects.com/crafts/​leather_goods.html

5. Ceramics
The physical properties which make clay suitable for modeling or molding are: the extremely small, smooth, flat particles of which it is composed, making it malleable yet able to retain a desired shape; and, that when subjected to heat chemically combined water is driven off as steam during the "water smoking" period (about 1292°F), after which the clay becomes a hard, rocklike substance.
http://www.fun-home-projects.com/crafts/​ceramics/​

6. Refrigerators And Freezers
They are both large consumers of energy, so it really pays to shop around when you're buying a new model.
http://www.fun-home-projects.com/energy_savings/​savings_in_the_kitchen/​refrigerators_and_freezers.html

7. Plaster Of Paris
This powder, when mixed with water, will set into a hard, rocklike substance, much like the original gypsum rock; this is one characteristic which makes plaster a suitable material for ceramic molds.
http://www.fun-home-projects.com/crafts/​ceramics/​plaster_of_paris.html

8. Casting Greenware
Assemble the two parts of each mold, and fasten heavy rubber bands around them, to hold the sections together; be sure to use enough rubber bands so that, when the molds are filled with slip, the weight of the slip can't force the sections apart and allow the slip to escape.
http://www.fun-home-projects.com/crafts/​ceramics/​casting_greenware.html

9. Cleaning And Repairing Greenware
Every step in producing a finished piece of ceramic ware is important, but no part of the procedure is as vital to the quality of it as is the cleaning of the greenware; meticulous decoration is of little value if it is carried out on poorly prepared greenware.
http://www.fun-home-projects.com/crafts/​ceramics/​cleaning_and_repairing_greenware/​

10. Firing, Part 1
In order to transform a dry, brittle piece of greenware into a hard, durable ceramic object, it must be subjected to enough heat to "mature" the clay; for most clays used in hobby ceramics, the maturing temperature ranges from 1830° to 1940°F, and the firing is done in an oven that is called a "kiln," pronounced with or without the "n.
http://www.fun-home-projects.com/crafts/​ceramics/​firing_part_1/​


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May 24, 2012