- Great for Limited-Run Productions
- Low-Cost Hole-Former / Knockout Alternative
- Available in Flat Wall, Clyindrical Wall, Full Sheets
- Mounting Magnets Available
18″ Dia. Parallel Foam Hole
for 6″ Wall x 60″ I.D.
(Functional for VORTEX manholes)
64″ Dia. Foam Hole
for 9″ Wall x 96″ I.D.
(Custom cut for Split-Barrel Application)
2″ PVC and 4″ PVC Septi-Seal Gaskets on “Ready-To-Pour” Foam Mandrels
89″ dia. hole in a 96″ I.D. manhole base
Created with a Foam Hole-Former made by Blackthorn!
Challenge: Needed a One-Time Use Mold for the base of a column
Solution: Mold made of Multi-layered Foam