Heat Resistant Cold Spray Aluminum. Intertherm. Â®. 898CSA. All surfaces to be coated should be clean, dry and free from contamination. Prior to paint application all surfaces. should be assessed and treated in accordance with ISO 8504:2000. Oil or grease should be removed in accordance with SSPC-SP1 solvent cleaning.
In effect, watercress is grown for the plant's leaves that are mainly used in the form of salad greens or dressings. The plant has a hollow branching stem that is connected to a crawling rootstock, about one foot to two feet in length, and usually pulls out along with the leaves above the surface of the water.
Watercress grows best in sunny, cool spots. If there is a small creek or stream on your property, grow your watercress there. If not, you will need to build a bog. Start by digging a hole about 2 feet across and 12 inches deep. Then, add a pond liner to your hole. Snip the edges of the pond liner so that it is 3 to 4 inches above the ground.