Cool channel and videos. I am doing some table lamp bases that I used rebond 25 silicone and the plasti paste for mother mold. Yeah, you're right, that stuff dries sharp as a knife. I found that out because I am doing Hydrocal hollow castings (slush mold). My rubber is a glove mold in one piece (redundant?). Would you advise, keeping in mind I am using Hydrocal to brush into the mold a layer before pouring in and slushing it around? It is a generous shape that I can easily reach into the mold when it is seated. Also, I made some plaster masters for other lamps and they have been sitting de molded for over a month, so very dry. Can I still soak these plaster of Paris and patch them. Mostly filling air bubble holes that came through after an initial wet sand. I tried bondo and it worked horribly. Awesome channel. Subscribed!
Sorry for the late reply. You've probably already figure it out but, yes, you can soak the plaster then patch it. Glove molds are great when they work because there is no seam. But seams are often necessary.
Plaster means plastee of Paris correct sir?
Nice and useful video. Thanks
Cool channel and videos. I am doing some table lamp bases that I used rebond 25 silicone and the plasti paste for mother mold. Yeah, you're right, that stuff dries sharp as a knife. I found that out because I am doing Hydrocal hollow castings (slush mold). My rubber is a glove mold in one piece (redundant?). Would you advise, keeping in mind I am using Hydrocal to brush into the mold a layer before pouring in and slushing it around? It is a generous shape that I can easily reach into the mold when it is seated.
Also, I made some plaster masters for other lamps and they have been sitting de molded for over a month, so very dry. Can I still soak these plaster of Paris and patch them. Mostly filling air bubble holes that came through after an initial wet sand. I tried bondo and it worked horribly. Awesome channel. Subscribed!
Sorry for the late reply. You've probably already figure it out but, yes, you can soak the plaster then patch it.
Glove molds are great when they work because there is no seam. But seams are often necessary.
Will plaster of paris have a similar result/process?
Did you use a mold release?
Hi Jules, no mold release necessary with silicone, in most cases.