And they needed to keep oxygen away from the leaves in the pit, because too much oxygen would let the resin burn up instead of melting. To investigate this method, Ochando and his colleagues built ...

Resin casting lets you produce parts that would ... You have a while before the silicone begins to set, so stir. Stir until your arms burn. You can’t over do it. You should end up with a very ...

These burns have to be carefully planned before torches ... Pitch pine cones are coated in a thick resin, which melts away under scalding temperatures, allowing seeds to be released.

[PapaJ06] carefully prepares the wood, fills the burns with glow powder mixed with epoxy resin, and finishes with a little sanding, linseed oil and polyurethane. The contrast between the charred ...