Polycraft GP-3481-F / No Degassing /No Vacuum chamber
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- Опубликовано: 5 сен 2024
- We get asked a lot if the Polycraft GP-3481-F can be used without a vacuum chamber so we've made a short video of making a mould we use for creating our material samples.
Material used in links below
Polycraft GP3481-F General Purpose RTV Rubber
www.mbfg.co.uk... (Red Fast catalyst)
400ml Clear Plastic Mixing Cup
www.mbfg.co.uk...
Small Wooden Mixing Sticks
www.mbfg.co.uk...
Any questions or queries be sure to let us know.
www.mbfg.co.uk
Amazing products sir
The result looks bubble-free, I'm now wondering if I need to invest in a vacuum chamber at all, given the clarity of the mould? 🤔
Also, do you run classes on mould-making or is there nothing to it?!
This video was due to a common question we get about this subject and to show that its not strictly necessary, with care you can make a good mould without one. The use of a vacuum pump and chamber is totally worth the investment if you are doing lots, it will tend to give you better results overall. Classes aren't something we would offer currently.
What release spray would you recommend for casting a silicone open with silicone?
Hi Zoe, We have Macwax and Polycraft no59, these would be about the most popular. The Polycraft no59 is more of a softer sheen in comparison to the macwax which leaves quite a heavy matt finish
@@MBFibreglass thank you so much
How long a life will the mould have, with proper care?
Unfortunately, that is very difficult to answer as it will greatly depend on how the mould is being used and the material being cast in it, a mould being used with plaster would last over 10 times longer than a mould being used for epoxy resins.
@@MBFibreglass thanks for the response, and since I mould plaster it's the answer I was hoping for!
@@Miniinish To maximise the longevity of the mould, let allow it to cure for approx 5 days before use. While you can cast into it after 24 hours this will decrease the lifespan of the mould.