Blackthorn can manufacture ANYTHING out of Fiberglass!
Metal and/or Plastic parts are sometimes not the most economical or practical option — THINK FIBERGLASS.
Pouring Lids
Fiberglass Pouring Lids are lightweight yet strong, and maneuverable yet sturdy. Easily move them from mold to mold without worrying if they will bow or bend under the force of the concrete.
Fiberglass Pouring Lids are domed to help concrete flow into the mold with ease, and feature a flat spot in the middle to hold extra concrete until the next part is ready to be poured.
Ideal for SCC Concrete.
Both ROUND & SQUARE shapes are available.
Light Pole Base Blockouts
Four (4) blockouts fit snugly together to create an assembly for a light pole base form.
Blockouts create access points in a concrete light pole base. They feature a two (2) coil bolt attachment method and angle iron reinforcing to help them maintain their shape.
Blockouts for both 18″ and 24″ dia. light pole bases are available. CONTACT US if want blockouts for another size.
“Hourglass” Hole-Formers for Oversized Flat Wall Structures
6″ dia. (tapering to 7″) x 16″ thick “hourglass” hole-former assembly
“Hourglass Assemblies” are a great solution for when you need a hole formed in a very thick (>12″) flat wall structure that cannot be achieved by a standard hole-former molds.
Two (2) fiberglass hole-formers are bolted together with 1/2″ coil rod to achieve desired wall thickness.
To strip, simply detach the two pieces by backing out the coil rod and remove separately. “Pin Popper” slide hammer removal tools are available.
