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Posts Tagged ‘silicone’

More Silicone Vat tests

November 11th, 2011 No comments

Hey All,

I had another round of the testing bug last night. I decided to play with a 5mm thick soda-lime glass base and a silicone coated microscope slide.

The results are a shapeless blob, that began as a heart from Dymax 9663 test VAT.  I stuck a screw in the resin and put it on top of the heart and placed it in the light. It embedded the nail in the heart.  Placed a few drops of the resin on the silicone coated slide and:

moved the heart ( blob ) up and down in 5 sec intervals.

I moved the resin around and it because of the resinophobic (new word in the dictionary – NOT! 8 google results – bummer!) nature of the silicone, the resin forms a round drop again.

 

I saw no ill effects from the resin, from the heat of polymerization and from cleaning with a paper towel and Isopropyl alcohol. The two defects on the silicone are my doing while trying to separate the nylon from the slide too early before the silicone is fully cured (which took 2-3 days @ room 22 degrees C ). Below are pictures of the clean slide:

The blue light caustics in the middle picture are from the Dell Shutdown screen of the projector.

More to come…

Categories: VAT Tags: , , , ,

I’m on a roll tonight! 3rd post.

November 6th, 2011 No comments

HA! I was a little too busy this week and will publish one more post for the night, but before that I have purchased regular soda-lime slides 1mm thick. I created some mini VATs like Fernando . I coated one with 100% pure silicone for aquariums:

 

Care to guess what the blob on the slides is? – See next post.

Categories: Resin Tags: , , , , ,

VAT base glass coating test

October 6th, 2011 2 comments

I have spread some silicone on a glass piece and placed 4 different foils on it. I placed another thick glass on top and clamped down. Left it for 2 days.

 

From Left to Right below:

Window PVC Foil, Backing foil from PVC Foil, Flower cellophane foil and A3 blueprints protector sheets.

 

The A3 blueprints protector is quite thick. It cured on the sides but in the center it stayed a little wet after 2 days:

 

The Flower Cellophane foil was next and the silicone DID NOT dry at all. It stayed wet and sticky:

 

The PVC Foil Backing was next. I could not get it peeled off.The silicone was solidly stuck to the foil and glass:

 

Next was the PVC backing itself. It is textured on one side and absolutely smooth on the other:

IT WAS PERFECT! The silicone has dried underneath and was easy to peel off. The surface was smooth and as you will see perfectly transparent:

 

The PVC Foil looks like this:

It is used as a security foil or when you need to texture the glass on your windows. I have bought it from Mr Bricolage, but it is available in Praktiker or other stores. In the US you should be able to find something similar in Lowe’s, Home Depot or Ace Hardware .

I will be coating the regular sized 150mm X 150mm glass with silicone next.

Cheers.

 

 

Categories: VAT-Frame Tags: , , , ,