|
Group: Administrators
Posts: 167,
Visits: 4.6K
|
You still require a release agent; the S120 is a surface is a sealer and does not add any release properties. When you do use S120 to restore a mould that has previously been used though, it's vitally important to remove *any* traces of release agent from the mould. Normally, this requires completely flatting back the mould surface with something like a 1200 grit paper. If you don't do this properly and there are any traces of release agent left of the mould surface then the S120 will be unable to stick to the mould and will fish-eye away or delaminate.
As for which release agent, its personal choice but would usually be used along with a Chemical Release Agent like Easy Lease. I note a few posts about Shelf-Life; it is worth noting that Chemical Release Agents are hygroscopic so whilst we could never recommend exceeding the shelf life anyway, it is worth pointing out that if left without the lid on or if used repeatedly in humid environments, you can decrease the shelf life further.
As with the S120, this is a very short shelf-life product at only around 6 months and as with the chemical release, ensure the lids are on tightly between uses.
|