This mold is currently out of product while we remake the molds, and will be made available once they are ready. Thanks, Expressions-LTD.
- SDP-48 Vessel Bowl 14" Molds
- Concrete Sink Size (Finished Sink): 14" Diameter, 7" Depth, 1.5" Concrete Thickness.
- The SDP-48, 14" Vessel Bowl Sink Molds for concrete sink fabrication is a two part mold- Includes the Inner Bowl Mold and Outer Vessel Bowl Shell Mold.
- Our SDP (Super Durable Polyurethane) Line of Sink Molds are made from the highest grade Polyurethane Rubber. Won't chip and crack like fiberglass, and much easier to get out of concrete after casting. A lifetime of reusability.
- This 14" Vessel Bowl Mold set has unique alignment bumps built into the Molds, so there is no guesswork needed to align the two Molds. With these bumps, the two Mold halves can be put together in a matter of seconds. The inner Mold also has the drain hole built into the Mold. All you have to do to use these Molds is apply Mold Release wax, form Release, clamp them together, and fill with concrete.
- Small style drain for bathroom lavatory size drains.
- Expressions LTD will not be held liable for any damage, misuse, or collateral damages resulting from use of any of our products.
- Watch videos of Mold Setup, Casting, and De-Molding/Removal on our Video Page.
- Apply 2-3 coats of a Mold Release Wax to both Inner and Outer Molds, lightly buffing between coats once it hazes.
- Apply a thin coat of Form Release to the Inner and Outer Molds.
- Place Molds together- the Alignment Bumps built into the Molds will make it so you can't do this wrong! Silicone is usually not needed on these molds, but you may wish to use it to prevent water from seeping out between the two Molds. If you do, just create a very small bead of silicone on the Outer Mold half. We have poured many of these sinks and water seepage is very minimal so we do not use silicone (an extra step removed, and demolding is easier without silicone holding things together).
- The Mold Halves can be screwed together, or secured to a casting table.
- Typically for concrete countertops, the concrete mix should be an oatmeal consistency. To fill a two part vessel mold, the thicker concrete may not flow easily, and will create a larger-than-normal amount of air pockets and voids. A slightly runnier consistency to the concrete will usually work better with filling a two-part vessel sink.
- Vibrating the concrete either with a specialized vibrator or vibrating table is recommended. Fast, light tapping on the Outer Mold with a rubber mallet while filling the Molds with concrete will help remove many air pockets.
- If a drier concrete mix is used, it will create larger voids which can be the desired effect- usually when planning to fill the voids with cement slurry of a different coloring.
- Any voids in the finished concrete can be filled using a Cement Slurry.
- If the steps above were followed for the Mold Setup, then most Molds will usually pull out of the concrete with little effort.
- If the mold is difficult to remove, try:
- Compressed air shot around the Mold rim will break the suction holding the Mold in the concrete.
- Adding cold water and ice to the inside of the mold for 10 minutes will shrink the mold just enough that removal is easier.
- Using a few blocks of foam against the concrete, place a 2x4 across the Mold, and pry the Mold out using some large C-clamps, or wood working clamps. Do not over-tighten the clamps, just put some pressure on them and then resume shooting compressed air around the Mold's rim. Add a little more pressure to the clamps, and repeat the air until the mold comes free.
- Most Molds can be pushed out of the concrete by removing the drain hole plug, and pushing the Mold out through the drain hole.
- Clean Mold with a sponge after each use. Any dried cement residue can be removed with a scotch-brite pad (as outlined above in the Mold Setup section. A light muriatic acid wash (20:1, 20 parts water to 1 part muriatic acid) can also remove cement scale.
- Waxing and buffing the Mold after cleaning it use is recommended to protect the Mold until its next use.