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COMPOSITION SLIP Instructions and More
These instructions are for Seeley’s French Composition Slip (COMPO1).
Keep the Composition Slip jug closed when not using.
Do not freeze.
Best when used within 12 months of purchase.
INSTRUCTIONS:
1. Mix the Composition Slip gently until smooth. Do not mix with force.
2. Pour Seeley's French Composition Slip into plaster mold. Let set 1 hour (45 min. for small pieces such as hands). Width of piece should be at least 3mm. You will need to top off the mold between 5-10 times during this hour. Empty mold. Remove casting form in 8 to 12 hours. Warning: Pieces may bond if touching before completely dry.
3. Trim: Cut off any excess seam or flashing with scissors.
4. Air Dry for 24 Hours. Then: Air dry for several days OR Oven dry on a cookie sheet at 200F (90C) for 4-6 hours. Total shrinkage from mold to finished pieces is approximately 7-8%.
5. Drill holes with hand drill and drill bit or hole saw to the appropriate size. Employ usual precautions in handling drill.
6. Sand seam areas with Comfy Scrub or other sanders of your choice.
7. Paint with body stain, using a flat bristle brush (SBR24). Choose from: SN1 French Bisque, SN6 Brown Velvet, SN9 Oriental, SN19 French Chocolate, SN21 American Bisque, SN23 Aztec Tan and SN26 Naturelle. To get the best results, dilute your first application of paint for a thin layer. The second layer can be thicker. Two layers is sufficient.
8. Assemble: String with washers and cord from stringing kit, using Stringing Clamp to hold cord temporarily while placing washers into body parts.
WARNING: Harmful if swallowed. Eye irritant upon contact.
CONTAINS: Natural Latex, Ammonia, and Silicates.
PRECAUTIONS: Avoid unnecessary skin contact. Wear protective clothing. Will adhere to clothing. Wash hands after handling. Use adequate ventilation during pouring or curing. Wear a NIOSH approved mask when sanding. Do not store below 40ˇF (5ˇC). KEEP FROM FREEZING. Protect drain by placing double layer of window screen in the sink; additional use of a sink trap strongly recommended.
FIRST AID: Excessive inhalation of vapor may cause dizziness, weakness, nausea, headache, and irritation of the eyes, nose and throat. If irritation develops, seek fresh air. Prolonged inhalation of dust may cause lung injury.
If liquid or solid gets into eyes, immediately flush eyes for at least 15 minutes with running water. Get medical attention. May cause skin irritation; if this occurs, wash affected area with plenty of water and mild soap. If rash develops, consult doctor. Do not take internally. May cause intestinal blockage if swallowed. Drink water and get immediate medical attention.
DO NOT INDUCE VOMITING
KEEP OUT OF REACH OF CHILDREN
For more health information, contact Seeley's Ceramic Service, Inc. at 1-607-433-1240 or poison control center.
Contains 1 US GALLON = 3.79 LITERS
Q & A:
1. Coagulated Latex on bottom of the jar: Yes, this could be freezing. However, I would only suspect freezing if there was quite a lot of this coagulation present. If there was, however, only one tiny ball of coagulum in a whole gallon of composition, then it is probably not freezing. I would just stir the jug thoroughly and run the composition through a sieve before pouring.
2. Air, week spots and "flaws" in bodies: To eliminate air and "flaws" in bodies, the best approach is to pour the mold at an angle. To do this, elevate the pour hole above the table so the mold is at about a 45 degree angle. This helps air to rise to the top of the mold while pouring. Stir the composition gently with a spoon or paddle (do not shake, as this introduces air). Pour the mold with a steady stream, so no excess air is introduced. Keep the mold topped off. A large body may need to cast for up to 2-3 hours to achieve the right wall thickness. After draining, for large bodies, it is customary to leave the pieces in the mold for two days or more before removing them. It does not hurt the bodies to leave them in the molds longer, it just makes them harder and easier to handle. Any swirling observed in the piece can be painted over. Air bubbles can be daubed (that is, brushed with a layer of composition, dried, then sanded smooth after oven curing).
3. Curing the bodies: Yes, you can still "air dry" the bodies, but you need a warm room and a fan to do this properly. The fastest way is still to cure in an oven at 180 degrees F for 6-12 hours. If they are cooked hotter than this, the bodies may get sticky. If you get them way too hot (400 degrees F or above), the bodies could burn with a noxious odor. Be careful.
4. Oil paints on composition: I don't think this is a problem. However, if you wanted to be extra cautious, then apply an acrylic gesso ground over the composition to isolate the composition from the oil paint. That is the safest way
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