Operation instruction of making gypsum decoration mold with RTV liquid silicone

Have you seen those beautiful and delicate gypsum decorations? Plaster decoration with features of light, fire prevention, moistureproof, easy processing and easy to install is a new interior materials, which is suitable for high-grade decoration. Then, are you always curious about the production process of gypsum decoration mold? No one can doubt the essential fact that the RTV liquid silicone is the optimal choice for gypsum decoration mold making.

Let us take gypsum lace for example and work together to explore how to use RTV liquid silicone for gypsum decoration mold making today.

Operation instruction of making gypsum decoration mold:

Step 1. Get ready for a gypsum decoration model which has been polished and sprayed with release agent, then, fasten it on the board.

Step 2. Build a wall around the model with a hard cardboard or wood veneer, and the distance from it is 1-2 cm to avoid the waste of RTV liquid silicone which will be will be poured into the confined to the scope.

Step 3. We choose the RTV silicone with the hardness of 25-30 shore A on the basis of the size and structure of gypsum decoration mold. The proportion of mixture of RTV silicone for gypsum to catalyst is 100:2. The mixture is stirred fully and evenly, and then put them into the vacuum machine to exhaust bubbles.

Step 4. After vacuuming, pour the mixed RTV liquid silicone into the frame. You can make it to flow freely, as for some places which cannot flow into; you can take the measure of toggling it gently with fingers. The RTV silicone for gypsum must cover the entire model.

Step 5. To demould when the RTV liquid silicone cured completely.

Step 6. Trim the gypsum decoration mold with a scissors. Now, the entire process has been finished. Then, the gypsum decoration mold can be placed into production after 24 hours.

2017-03-24