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Most of us have use caulk around the house, the following are tips I learned when making water or seascapes with clear bathroom caulk. Clear silicone caulk has many advantages: Will adhere to most surfaces Can be painted over Can be mixed with cotton for making sea foam Able to cut and remove unwanted areas without sacrificing the whole project Little shrinkage issues if applied properly Quick fix with more material to fill voids Can be clear coated after drying for glossy finish VERY low cost Caution when using: Apply a thin layer (less than 1/8 inch) for best drying time, thickness will determine dry time Allow 24 hours between layers for drying Too much too fast will cause cracks to open where heavy layers are applied I have used this on 1/700, 1/350 and 1/72 scale projects. Smaller scale will have less working time but always plan a few days no matter what scale. The biggest advantage I found is cost. You can complete most projects with less than one tube. That should set you back about $4.00 from the local home improvement center. Liquitex gel medium will set you back considerably more, and clear resin even more. If you get in a hurry and apply to much it can open up cracks as the material under the top will dry out at an uneven rate. If this happens don’t panic, just place a little on your finger and fill the void after it has dried completely. After the new application has dried overcoat with clear paint or Future to get a gloss and smooth finish. If you get some on the model where you don’t want it, no problem, just use a wet Q-Tip or small sponge to remove the excess material from the model. What if it dries on the model where I don’t want it then what? Still no problem using your finger slide along the surface of the model and the caulk will peel off; you can use a little water to help it come lose too. BUT if you wait too long on a dull painted surface you may need to work it harder to free it from the model. I like to use clear gloss on my freeboard anyway which aids removal. Sculpting is no problem, just like Liquitex gel, use a paint brush dipped in water to form waves or any other water motion you want. Plus you can add more to a wave to increase the height just dab a little more on top. If you want to reshape or change an area, remove the material with a razor knife and fill the void with new material. You can mix a little cotton with the caulk to form white foam in the water. If you don’t like it remove with your knife and try again. I like the versatility and low cost of this medium. After you get the hang of it I think you find it easy and simple, but with drawback of longer setup time. Here are a couple of links to some models I used caulk for the water. http://www.ipmsusa3.org/gallery/v/members/2010/january/Macon/ http://www.ipmsusa3.org/gallery/v/members/2012/March/AmericaCruiser/ Happy modeling.